A to Z List of Health Organizations
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9- AACC International
- AARP
- Aarskog Syndrome Parents Support Group
- ABC Quilts
- Abiding Hearts
- Abilities!
- Ability OnLine
- Ability Society
- ABLEDATA
- AboutFace International
- AboutFace USA
- About Madelung's
- Abraham A. Brill Library - New York Psychoanalytic Society and Institute
- Abstracts in New Technologies and Engineering - Cambridge Scientific Abstracts
- Abundant Life Clinic
- Abundant Life Seeds
- Abusive Men Exploring New Directions
- Academic Information Technologies and Libraries - Academic Health Center - University of Cincinnati
- Academics Recovering Together - Cardiac Rhythm Management Laboratory - University of Alabama at Birmingham
- Academy for Early Childhood Program Accreditation - National Association for the Education of Young Children
- Academy for Eating Disorders
- Academy for Educational Development
- Academy for Guided Imagery
- Academy for Implants and Transplants
- Academy for Sports Dentistry
- Academy for State and Local Government
- AcademyHealth
- Academy of Aphasia
- Academy of Architecture for Health - The American Institute of Architects
- Academy of Behavioral Medicine Research
- Academy of Dentistry for Persons with Disabilities - Special Care Dentistry
- Academy of Dentistry International
- Academy of General Dentistry
- Academy of Industrial Hygiene - American Industrial Hygiene Association
- Academy of Managed Care Pharmacy
- Academy of Molecular Imaging
- Academy of Natural Sciences
- Academy of Oral Dynamics
- Academy of Psychosomatic Medicine
- Academy of Religion and Psychical Research - Spiritual Frontiers Fellowship International
- Academy of Scientific Hypnotherapy
- Acarology Laboratory - Department of Entomology - Ohio State University
- Access Abilities - Thoreau Center for Sustainability
- ACCESS-ABILITY
- Access for Disabled Americans
- Access Resources
- Accreditation Association for Ambulatory Health Care
- Accreditation Board for Engineering and Technology
- Accreditation Commission for Acupuncture and Oriental Medicine
- Accrediting Bureau of Health Education Schools
- A Chance to Grow
- Achromatopsia Network
- Acid Maltase Deficiency Association, Inc.
- Ackerman Institute for the Family
- Acoustical Society of America
- Acoustic Neuroma Association
- Acoustic Neuroma Association of Canada
- ACP Medicine Online - American College of Physicians - WebMD
- Acres, Inc.
- Action on Smoking and Health
- Actors' Fund of America
- ACT UP New York - AIDS Coalition to Unleash Power
- Acupuncture and Oriental Medicine Alliance
- Acute and Emergency Services Branch - Government of Saskatchewan
- Adams Oliver Syndrome Support Group
- Adaptive Environments
- Adaptive Technology Resource Centre - J.P. Robarts Library - University of Toronto
- Addiction Technology Transfer Center Network - Center for Substance Abuse Treatment - Substance Abuse and Mental Health Services Administration
- Addiction Treatment Program - Virginia Hospital Center
- Addictive Behaviors Research Center - Department of Psychology - University of Washington
- Addison's Disease Self-Help Group
- Adelaide Botanic Garden and State Herbarium - Department for Environment and Heritage - Government of South Australia
- Adenoid Cystic Carcinoma Alliance
- Adenoid Cystic Carcinoma Organization International
- Adhesive and Sealant Council, Inc.
- Adirondack Council
- Adirondack Mountain Club
- Administration for Children and Families - U.S. Department of Health and Human Services
- Administration on Aging - Public Health Service - U.S. Department of Health and Human Services
- Administration on Developmental Disabilities - Administration for Children and Families - Public Health Service - U.S. Department of Health and Human Services
- Administrative and Customer Services Division - U.S. Census Bureau - U.S. Department of Commerce
- Administrative Justice Program - Center for the Study of Crime, Delinquency, and Corrections - Southern Illinois University, Carbondale
- Adolescent and Young Adult Medicine Service - Children's National Medical Center
- Adolescent Employment Readiness Center - Diana L. and Stephen A. Goldberg Center for Community Pediatric - Children's National Medical Center
- Adolescent Medicine Division - Children's Hospital Medical Center of Cincinnati
- Adolescent Pregnancy Prevention Coalition of North Carolina
- Adolescent Wellness and Reproductive Education Foundation
- Adopt America Network
- Adopt a Special Kid
- Adoptees in Search
- Adoptive Families of America
- Adoptive Parents Committee, Inc.
- Adrenoleukodystrophy Project - Kennedy Krieger Institute
- Adult Congenital Heart Association
- Adult Cystic Fibrosis Center - Division of Pulmonary, Allergy, Critical Care and Occupational - Riley Hospital - School of Medicine - Indiana University
- Advanced Biotechnology Center
- Advanced Computing Center for the Arts and Design - College of the Arts - Ohio State University
- Advanced Materials and Processes Technology Information Analysis - Defense Technical Information Center - U.S. Department of Defense
- Advanced Medical Technology Assessment and Policy Program - Department of Radiology - University of California, San Diego
- Advanced Medical Technology Association
- Advanced Technology Development Center - Georgia Institute of Technology
- Adventist Development and Relief Agency International
- Advertising Council
- Advisory Council on Health Research
- Advisory Council on Hereditary and Congenital Disorders - Department of Health and Mental Hygiene - Family Health Administration - Maryland State Government
- Advocacy Center
- Advocacy Center for Persons with Disabilities, Inc.
- Advocacy for Women and Kids in Emergencies - Children's Hospital Boston - Harvard Medical School - Harvard University
- Advocates for Children and Youth
- Advocates for Highway and Auto Safety
- Advocates For Youth
- Aerobics and Fitness Association of America
- Aeronautics Division - Department of Transportation - Arizona State Government
- Aeronautics Division - Department of Transportation - Montana State Government
- Aeronomy Laboratory - Chemical Sciences Division - Earth System Research Laboratory - Office of Oceanic and Atmospheric Research - National Oceanic and Atmospheric Administration - U.S. Department of Commerce
- Aerosol Technology Committee - American Industrial Hygiene Association
- Aerospace Education - Civil Air Patrol - U.S. Air Force
- Aerospace Medical Association
- Aetna Foundation - Aetna, Inc.
- Africa Action
- African American Breast Cancer Alliance, Inc.
- African American Family Services
- African American HIV/AIDS Speakers' Bureau - Present Day Ministries of Jesus Christ International
- African-American Resource Center - Howard University
- African Medical and Research Foundation
- African Section - African and Middle Eastern Reading Room - African and Middle Eastern Division - Library of Congress
- African Wildlife Foundation
- AFS International
- AfterLoss
- Agape Fund
- Age Concern England
- Agence d’evaluation des Technologies et des Modes d’intervention - Ministry of Health and Social Services
- Agency for Health Care Administration - Florida State Government
- Agency for Healthcare Research and Quality - Public Health Service - US Department of Health and Human Services
- Agency for Health Evaluation and Accreditation - Agence Nationale d'Evaluation et d'Accreditation en Sante
- Agency for Toxic Substances and Disease Registry - United States Department of Health and Human Services
- Agenesis of the Corpus Callosum (ACC) Network
- Agenesis of the Corpus Callosum Network - University of Maine
- Age-related Macular Degeneration Alliance International
- Aging in America
- Aging Network Services
- Aging Services Division - North Dakota Department of Human Services
- Aging Services - Division of Aging and Disability Services - Nebraska Department of Health and Human Services - Nebraska State Government
- Aging Services Division - Oklahoma Department of Human Services - State of Oklahoma
- Aging Solutions, Inc.
- Agoraphobics Building Independent Lives
- AgrAbility Project - Cooperative State Research, Education and Extension Service - U.S. Department of Agriculture
- Agra Europe
- Agreste - Ministry of Agriculture and Fisheries
- Agricultural Analytical Services - Office of the Texas State Chemist - Texas Agricultural Experiment Station - Texas A and M University
- Agricultural and Forestry Experiment Station - School of Natural Resources and Agricultural Sciences - University of Alaska Fairbanks
- Agricultural Commodities Inspection Division - Alabama Department of Agriculture and Industries - Alabama State Government
- Agricultural Economics Research Institute - Tarimsal Ekonomi Arastirma Enstitusu - Ministry of Agriculture and Rural Affairs
- Agricultural Experiment Station - College of Agriculture - University of Wyoming
- Agricultural Experiment Stations - College of Agricultural and Environmental Sciences - University of Georgia
- Agricultural Information Center - College of Agriculture - University of Kentucky
- Agricultural Information Center - University of Kentucky Libraries - College of Agriculture - University of Kentucky
- Agricultural Institute of Canada
- Agricultural Marketing Service - United States Department of Agriculture
- Agricultural Natural Resources Extension - Iowa State University
- Agricultural Online Access - National Agriculture Library - Agricultural Research Service - U.S. Department of Agriculture
- Agricultural Research Center - College of Agricultural, Human and Natural Resource Sciences - Washington State University
- Agricultural Research Stations Headquarters - College of Agricultural and Life Sciences - University of Wisconsin-Madison
- Agriculture and Environment for Developing Regions - KIT Library - Royal Tropical Institute
- Agriculture Library - University of Delaware
- AGRIS - Food and Agriculture Organization - United Nations
- Agronomic Division - North Carolina Department of Agriculture and Consumer Services - North Carolina State Government
- Agronomic Services Division - North Carolina Department of Agriculture and Consumer Services
- AHA Resource Center - American Hospital Association
- AHRQ Publications Clearinghouse - Agency for Healthcare Research and Quaility - Public Health Service - U.S. Department of Health and Human Services
- Aicardi Syndrome Awareness and Support Group/Network
- Aicardi Syndrome Foundation
- AID Atlanta
- AIDS Action
- AIDS Action Committee of Massachusetts
- AIDS Alliance for Children, Youth and Families
- AIDS and Cancer Specimen Resource - University of California, San Francisco
- AIDS and Substance Abuse Speakers Network
- AIDSCAN Database - Ryerson Polytechnical Institute Library - Ryerson Polytechnical Institute
- AIDS Clinical Research Unit - Department of Medicine - University of Miami School of Medicine
- AIDS Clinical Trials Center - Comprehensive Care Center - Vanderbilt University Medical Center - Vanderbilt University
- AIDS Clinical Trials Unit - Center for Clinical AIDS Research and Education - School of Medicine - University of California, Los Angeles
- AIDS Clinical Trials Unit - Holmes Hospital Division - University of Cincinnati Medical Center - University of Cincinnati
- AIDS Clinical Trials Unit - Medical Center - School of Medicine - Mount Sinai Hospital
- AIDS Clinical Trials Unit - School of Medicine - University of Washington
- AIDS Clinical Trials Unit - Stanford University Medical Center
- AIDS Coalition To Unleash Power
- AIDS Committee of Toronto
- AIDS Committee of Toronto
- AIDS Coordination Project - American Bar Association
- AIDS Education and Global Information System
- AIDS Health Project - University of California at San Francisco - San Francisco General Hospital
- AIDS Housing Coalition Houston
- AIDS Housing of Washington
- AIDSinfo - National Library of Medicine - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- AIDS Materials Project
- AIDS, Medicine and Miracles
- AIDS Memorial Forest - Jewish National Fund
- AIDS Memorial Quilt - NAMES Project Foundation
- AIDS Oral History Project - Dance Division - New York Public Library for the Performing Arts
- AIDS.ORG, Inc. - Community Partners
- AIDS Orphan Adoption Project - National Council For Adoption
- AIDS Project Los Angeles
- AIDS Research Consortium of Atlanta
- AIDS Research Institute - University of California at San Francisco
- AIDS Resource Foundation for Children, Inc.
- AIDS Treatment Data Network
- AIDS Treatment News
- AIM for the Handicapped, Inc.
- Air Ambulance America
- Air and Surface Transport Nurses Association
- Air and Waste Management Association
- Air Charity Network
- Aircraft Owners and Pilots Association
- Air Education and Training Command - U.S. Air Force - U.S. Department of Defense
- Air Force Flight Test Center Technical Library - Air Force Flight Test Center - U.S. Air Force - U.S. Department of Defense
- Air Force Medical Service - U.S. Air Force
- Air Line Pilots Association, International - American Federation of Labor - Congress of Industrial
- AirMD Air Ambulance Services
- Air, Pesticides and Toxics Management Division - Region 4 - U.S. Environmental Protection Agency
- Air Pollution Control Board - Virginia Department of Environmental Quality - Virginia State Government
- Air Pollution Control Division - Department of Environmental Conservation - Vermont State Government
- Air Pollution Control Division - Department of Public Health and Environment - State of Colorado
- Air Pollution Prevention and Control Division - National Risk Management Research Laboratory - U.S. Environmental Protection Agency
- Air Pollution Research Center - Department of Environmental Sciences - University of California at Riverside
- Air Quality Division - Michigan Department of Environmental Quality - Michigan State Government
- Air Quality Permitting Program - Department of Environmental Regulation - State of New Jersey Department of Environmental Protection
- Air Quality Program - Air Resources Division - Department of Environmental Services - New Hampshire State Government
- Air Traffic Control Association, Inc.
- Air Traffic Organization - Federal Aviation Administration - U.S. Department of Transportation
- A.J. Muste Memorial Institute
- Akron City Health Department - Akron City Government
- Alabama Agricultural Experiment Station - College of Agriculture - Auburn University
- Alabama Citizens Action Program - American Council on Alcohol Problems
- Alabama Commission on Higher Education - Alabama State Government
- Alabama Department of Forensic Sciences - Alabama State Government
- Alabama Department of Human Resources - Alabama State Government
- Alabama Department of Mental Health and Mental Retardation - State of Alabama
- Alabama Department of Public Health - State of Alabama
- Alabama Department of Senior Services
- Alabama Environmental Council
- Alabama Legal Information Center - State Law Library - Alabama Supreme Court - Alabama State Government
- Alabama Marine Resources Division - Alabama Department of Conservation and Natural Resources - Alabama State Government
- Alabama Museum of Natural History - University of Alabama
- Alabama Office of Rural Health - Alabama Department of Public Health
- Alagille Syndrome Alliance
- Alan Guttmacher Institute
- Al-Anon Family Groups - World Service Office
- Alaska Association of Soil and Water Conservation Districts
- Alaska Center for the Environment
- Alaska Fisheries Science Center - National Marines Fishery Service - National Oceanic and Atmospheric Administration - U.S. Department of Commerce
- Alaska State Library - Alaska State Government
- Alaska Vocational Technical Center - Department of Labor and Workforce Development - Alaska State Government
- Alberta Children's Hospital Foundation - Alberta Children's Hospital
- Alberta Heritage Foundation for Medical Research
- Albert Einstein Cancer Center - Yeshiva University
- Albert Einstein College of Medicine - Yeshiva University
- Albert Einstein Healthcare Network Libraries - Albert Einstein Healthcare Network - Jefferson Health System
- Albert Ellis Institute
- Albert R. Mann Library - Cornell University
- Albinism Fellowship
- Alcohol and Drug Abuse Administration - Maryland Department of Health and Mental Hygiene
- Alcohol and Drug Services
- Alcohol Epidemiology Program - School of Public Health - University of Minnesota
- Alcoholics Anonymous
- Alcohol Research Group - Public Health Institute
- Alcohol Research Information Service
- Alexander Graham Bell Association for the Deaf and Hard of
- Alfalfa Processors Council - American Feed Industry Association
- Alkaptonuria Society
- Allergy and Asthma Disease Management Center - American Academy of Allergy, Asthma and Immunology
- Allergy and Asthma Network Mothers of Asthmatics, Inc.
- Allergy/Asthma Information Association
- Allergy Society of South Africa
- Alliance Against Alveolar Soft Part Sarcoma
- Alliance for Aging Research
- Alliance for Children and Families
- Alliance for Health Reform
- Alliance for Healthy Homes
- Alliance for Justice
- Alliance for Sustainability
- Alliance for the Great Lakes
- Alliance for the Prudent Use of Antibiotics
- Alliance of Community Health Plans
- Alliance of Information and Referral Systems
- Alliance of Professional Tattooists, Inc.
- Alliance of Work-Life Professionals
- Alliance to Save Energy
- All Kids Count - Public Health Informatics Institute - Task Force for Child Survival and Development
- All-Russian Collection of Microorganisms - G.K.Skryabin Institute of Biochemistry and Physiology of - Russian Academy of Sciences
- All-Russian Scientific and Technical Information Institute
- Almond Board of California
- Alpha-1 Association
- Alpha-1 Foundation
- ALS and Neuromuscular Research Foundation
- ALS Association
- Alston Wilkes Society
- Alstrom Syndrome International
- Alternating Hemiplegia of Childhood Foundation
- Alternative Medicine Foundation, Inc.
- Alternative Schools Network
- Alterra
- Alveolar Capillary Dysplasia Association
- Alzheimer's Association
- Alzheimer's Disease Education and Referral Center - National Institute on Aging - US National Institutes of Health
- Alzheimer's Disease International
- Alzheimer's Disease International
- Alzheimer's Disease Local Chapters - Alzheimer's Association
- Alzheimer's Foundation of America
- Alzheimer Society of Canada
- Alzheimer's Society
- Amarillo Field Office - Bureau of Land Management - U.S. Department of the Interior
- Amateur Athletic Foundation of Los Angeles
- Amateur Athletic Union
- Ambiguous Genitalia Support Network
- Ambrose Clement Health Center - Health Department - Government of Cincinnati
- Ambulatory Pediatric Association
- America-Mideast Educational and Training Services, Inc.
- American Academy for Cerebral Palsy and Developmental Medicine
- American Academy of Actuaries
- American Academy of Addiction Psychiatry
- American Academy of Allergy, Asthma and Immunology
- American Academy of Ambulatory Care Nursing
- American Academy of Child and Adolescent Psychiatry
- American Academy of Clinical Neurophysiology
- American Academy of Clinical Psychiatrists
- American Academy of Clinical Toxicology
- American Academy of Cosmetic Dentistry
- American Academy of Dermatology
- American Academy of Emergency Medicine
- American Academy of Environmental Engineers
- American Academy of Environmental Medicine
- American Academy of Esthetic Dentistry
- American Academy of Facial Plastic and Reconstructive Surgery
- American Academy of Family Physicians
- American Academy of Forensic Sciences
- American Academy of Gold Foil Operators
- American Academy of Home Care Physicians
- American Academy of Hospice and Palliative Medicine
- American Academy of Husband-Coached Childbirth
- American Academy of Implant Dentistry
- American Academy of Insurance Medicine
- American Academy of Maxillofacial Prosthetics
- American Academy of Medical Acupuncture
- American Academy of Medical Administrators
- American Academy of Micropigmentation
- American Academy of Neurological and Orthopedic Surgeons
- American Academy of Neurology
- American Academy of Nurse Practitioners
- American Academy of Ophthalmology
- American Academy of Optometry
- American Academy of Oral Medicine
- American Academy of Orthopaedic Surgeons
- American Academy of Osteopathy
- American Academy of Otolaryngic Allergy
- American Academy of Otolaryngology-Head and Neck Surgery, Inc.
- American Academy of Pain Management
- American Academy of Pain Medicine
- American Academy of Pediatric Dentistry
- American Academy of Pediatrics
- American Academy of Pediatrics - Division of Library and Archival Services - Pediatric History Center
- American Academy of Periodontology
- American Academy of Physical Medicine and Rehabilitation
- American Academy of Physician Assistants
- American Academy of Podiatric Sports Medicine - American Podiatric Medical Association
- American Academy of Psychiatry and the Law
- American Academy of Psychoanalysis and Dynamic Psychiatry
- American Academy of Psychotherapists
- American Academy of Sleep Medicine
- American Academy of the History of Dentistry
- American Aging Association - Sally Balin Medical Center
- American Alliance for Health, Physical Education, Recreation, and
- American Alliance for Theater and Education
- American Alpine Club
- American Ambulance Association
- American Amputee Foundation, Inc.
- American Animal Hospital Association
- American Annals of the Deaf - Council of American Instructors of the Deaf - Conference of Educational Administrators of Schools and Programs
- American Anorexia and Bulimia Association of Philadelphia
- American Anthropological Association
- American Anti-Vivisection Society
- American Apitherapy Society, Inc.
- American Arbitration Association
- American Art Therapy Association, Inc.
- American Assembly for Men in Nursing
- American Associate Degree Early Childhood Educators
- American Association for Artificial Intelligence
- American Association for Cancer Education
- American Association for Cancer Research
- American Association for Clinical Chemistry
- American Association for Community Dental Programs
- American Association for Continuity of Care
- American Association for Crystal Growth
- American Association for Emergency Psychiatry
- American Association for Functional Orthodontics
- American Association for Geriatric Psychiatry
- American Association for Hand Surgery
- American Association for Health Education - American Alliance for Health, Physical Education, Recreation, and
- American Association for Klinefelter Syndrome Information and
- American Association for Laboratory Accreditation
- American Association for Laboratory Animal Science
- American Association for Leisure and Recreation - American Alliance for Health, Physical Education, Recreation, and
- American Association for Marriage and Family Therapy
- American Association for Pediatric Ophthalmology and Strabismus
- American Association for Physical Activity and Recreation - American Alliance for Health, Physical Education, Recreation and
- American Association for Respiratory Care
- American Association for the Advancement of Science
- American Association for the Advancement of Slavic Studies - Harvard University
- American Association for the History of Medicine
- American Association for the History of Nursing, Inc.
- American Association for the Study of Liver Diseases
- American Association for the Treatment of Opioid Dependence, Inc.
- American Association for Vocational Instructional Materials
- American Association of Acupuncture and Bioenergetic Medicine
- American Association of Avian Pathologists
- American Association of Bioanalysts
- American Association of Birth Centers
- American Association of Birth Centers
- American Association of Blood Banks
- American Association of Cardiovascular and Pulmonary
- American Association of Certified Orthoptists - American Orthoptic Council
- American Association of Children's Residential Centers
- American Association of Colleges of Nursing
- American Association of Colleges of Osteopathic Medicine
- American Association of Colleges of Pharmacy
- American Association of Colleges of Podiatric Medicine
- American Association of Collegiate Registrars and Admissions
- American Association of Community Colleges
- American Association of Community Psychiatrists
- American Association of Critical-Care Nurses
- American Association of Diabetes Educators
- American Association of Endodontists
- American Association of Equine Practitioners
- American Association of Family and Consumer Sciences
- American Association of Gynecologic Laparoscopists
- American Association of Handwriting Analysts
- American Association of Healthcare Administrative Management
- American Association of Healthcare Consultants
- American Association of Hip and Knees Surgeons
- American Association of Homes and Services for the Aging
- American Association of Hospital and Healthcare Podiatrists, Inc.
- American Association of Hospital Dentists
- American Association of Immunologists
- American Association of Integrated Healthcare Delivery Systems
- American Association of Kidney Patients
- American Association of Law Libraries
- American Association of Legal Nurse Consultants
- American Association of Managed Care Nurses, Inc.
- American Association of Meat Processors
- American Association of Medical Assistants
- American Association of Medical Billers
- American Association of Medical Review Officers
- American Association of Motor Vehicle Administrators
- American Association of Museums
- American Association of Naturopathic Physicians
- American Association of Neurological Surgeons
- American Association of Neuromuscular and Electrodiagnostic - American Board of Electrodiagnostic Medicine
- American Association of Neuroscience Nurses
- American Association of Nurse Anesthetists
- American Association of Nurse Attorneys
- American Association of Occupational Health Nurses, Inc.
- American Association of Oral and Maxillofacial Surgeons
- American Association of Oriental Medicine
- American Association of Orthodontists
- American Association of Pastoral Counselors
- American Association of People with Disabilities
- American Association of Physical Anthropologists
- American Association of Physicists in Medicine
- American Association of Physics Teachers
- American Association of Poison Control Centers
- American Association of Professional Hypnotherapists
- American Association of Psychiatric Administrators
- American Association of Psychotherapists, Inc.
- American Association of Public Health Dentistry
- American Association of School Administrators
- American Association of School Librarians - American Library Association
- American Association of Sexuality Educators, Counselors, and
- American Association of Spinal Cord Injury Nurses
- American Association of State Highway and Transportation
- American Association of Stratigraphic Palynologists
- American Association of Suicidology
- American Association of Swine Veterinarians
- American Association of Textile Chemists and Colorists
- American Association of the Deaf-Blind
- American Association of Tissue Banks
- American Association of University Professors
- American Association of Veterinary Anatomists
- American Association of Veterinary Laboratory Diagnosticians
- American Association of Veterinary Parasitologists - American Veterinary Medical Association
- American Association of Women Dentists
- American Association of Zoo Keepers, Inc.
- American Association of Zoo Veterinarians
- American Association on Mental Retardation
- American Astronautical Society
- American Auditory Society
- American Autoimmune Related Diseases Association, Inc.
- American Automatic Control Council
- American Automobile Association
- American Automobile Association Foundation for Traffic Safety - American Automobile Association
- American Bar Association
- American Beekeeping Federation
- American Behcet's Disease Association
- American Beverage Association
- American Board for Certification in Orthotics and Prosthetics
- American Boarding Kennels Association
- American Board of Anesthesiology
- American Board of Bariatric Medicine
- American Board of Cardiovascular Perfusion
- American Board of Colon and Rectal Surgery
- American Board of Dermatology, Inc.
- American Board of Forensic Psychology
- American Board of Medical Specialties
- American Board of Orthodontics
- American Board of Orthopaedic Surgery, Inc. - American Board of Medical Specialties
- American Board of Pathology - American Board of Medical Specialties
- American Board of Pediatrics
- American Board of Periodontology - American Academy of Periodontology
- American Board of Physical Medicine and Rehabilitation - American Board of Medical Specialties
- American Board of Physician Nutrition Specialists
- American Board of Podiatric Surgery
- American Board of Professional Psychology
- American Board of Prosthodontics
- American Board of Psychiatry and Neurology, Inc.
- American Board of Quality Assurance and Utilization Review
- American Board of Radiology
- American Board of Thoracic Surgery
- American Bone Marrow Donor Registry
- American Botanical Council
- American Brain Tumor Association
- American Broncho-Esophagological Association - Division of Otolaryngology - University of Utah
- American Bryological and Lichenological Society, Inc.
- American Burn Association
- American Camp Association
- American Cancer Society
- American Canine Sports Medicine Association
- American Carbon Society
- American Cetacean Society
- American Chemistry Council
- American Chiropractic Association
- American Chronic Pain Association
- American Civil Liberties Union
- American Cleft Palate-Craniofacial Association
- American Clinical and Climatological Association
- American Clinical Laboratory Association
- American Clinical Neurophysiology Society
- American Cocoa Research Institute - Chocolate Manufacturers Association of America - World Cocoa Foundation
- American Coke and Coal Chemicals Institute
- American College for Advancement in Medicine
- American College Health Association
- American College of Allergy, Asthma and Immunology
- American College of Cardiology
- American College of Cardiology Extended Learning - American College of Cardiology
- American College of Chest Physicians
- American College of Dentists
- American College of Emergency Physicians
- American College of Eye Surgeons - American Board of Eye Surgery
- American College of Foot and Ankle Orthopedics and Medicine
- American College of Foot and Ankle Surgeons
- American College of Forensic Psychiatry
- American College of Gastroenterology
- American College of Health Care Administrators
- American College of Healthcare Executives
- American College of International Physicians
- American College of Laboratory Animal Medicine
- American College of Legal Medicine
- American College of Medical Quality
- American College of Medical Toxicology
- American College of Mohs Micrographic Surgery and Cutaneous
- American College of Neuropsychopharmacology
- American College of Nuclear Physicians
- American College of Nurse-Midwives
- American College of Nutrition
- American College of Obstetricians and Gynecologists
- American College of Occupational and Environmental Medicine
- American College of Osteopathic Emergency Physicians
- American College of Osteopathic Family Physicians
- American College of Osteopathic Pediatricians - American Osteopathic Association
- American College of Phlebology
- American College of Physician Executives
- American College of Physicians
- American College of Preventive Medicine
- American College of Prosthodontists
- American College of Radiology
- American College of Rheumatology
- American College of Sports Medicine
- American College of Surgeons
- American College of Toxicology
- American College of Veterinary Pathologists
- American College of Veterinary Surgeons
- American Conference of Governmental Industrial Hygienists
- American Congress of Rehabilitation Medicine
- American Correctional Association
- American Correctional Health Services Association
- American Council for Drug Education - Phoenix House
- American Council for Pharmacy Education
- American Council of Independent Laboratories
- American Council of Life Insurers
- American Council of the Blind
- American Council on Alcoholism
- American Council on Education
- American Council on Rural Special Education
- American Council on Science and Health
- American Counseling Association
- American Crystallographic Association
- American Dairy Products Institute
- American Dairy Science Association
- American Dance Therapy Association
- American Dental Assistants Association
- American Dental Association
- American Dental Association - Bureau of Library Services
- American Dental Education Association
- American Dental Hygienists' Association
- American Dental Society of Anesthesiology
- American Design Drafting Association
- American Diabetes Association
- American Dialect Society - English Department - MacMurray College
- American Dietetic Association
- American Divorce Association of Men
- American Dog Owners Association
- American Educational Research Association
- American Egg Board
- American Electrology Association
- American Endodontic Society, Inc.
- American Enterprise Institute for Public Policy Research
- American Environmental Health Foundation
- American Epilepsy Society
- American Family Communiversity
- American Farmland Trust
- American Federation for Aging Research
- American Federation of Labor and Congress of Industrial
- American Federation of State, County and Municipal Employees - American Federation of Labor-Congress of Industrial Organizations
- American Federation of Teachers - American Federation of Labor and Congress of Industrial
- American Feed Industry Association
- American Fern Society
- American Fiber Manufacturers Association, Inc.
- American Fibromyalgia Syndrome Association, Inc.
- American Fisheries Society
- American Forest and Paper Association
- American Forests
- American Foundation for AIDS Research
- American Foundation for Suicide Prevention
- American Foundation for the Blind
- American Frozen Food Institute
- American Fund for Alternatives to Animal Research
- American Gastroenterological Association
- American Genetic Association
- American Geriatrics Society
- American Group Psychotherapy Association
- American Hair Loss Council
- American Handwriting Analysis Foundation
- American Headache Society
- American Headache Society
- American Head and Neck Society
- American Health Assistance Foundation
- American Health Care Association
- American Healthcare Radiology Administrators
- American Health Decisions
- American Health Information Management Association
- American Health Lawyers Association
- American Health Planning Association
- American Health Quality Association
- American Hearing Research Foundation
- American Heart Association
- American Hemochromatosis Society, Inc.
- American Herbalists Guild
- American Holistic Medical Association
- American Holistic Nurses Association
- American Horse Protection Association
- American Horticultural Society, Inc.
- American Horticultural Therapy Association
- American Hospice Foundation
- American Hospital Association
- American Humane Association
- American Hyperlexia Association
- American Immigration Lawyers Association
- American Indian and Alaska Native Program - Health Sciences Center - University of Colorado at Denver
- American Indian Environmental Office - U.S. Environmental Protection Agency
- American Indian Higher Education Consortium
- American Indian Institute - Continuing Education Community Programs - College of Continuing Education - University of Oklahoma
- American Indian Resource Center - Huntington Park Library - County of Los Angeles Public Library - County of Los Angeles Government
- American Industrial Hygiene Association
- American Institute for Cancer Research
- American Institute for Chartered Property Casualty Underwriters
- American Institute for Medical and Biological Engineering
- American Institute for Preventive Medicine
- American Institute of Aeronautics and Astronautics
- American Institute of Baking
- American Institute of Biological Sciences
- American Institute of Biomedical Climatology
- American Institute of Chemical Engineers
- American Institute of Food Distribution
- American Institute of Homeopathy
- American Institute of Life-Threatening Illness and Loss - Foundation of Thanatology
- American Institute of Physics
- American Institute of Stress
- American Institute of the History of Pharmacy (AIHP) - School of Pharmacy - University of Wisconsin-Madison
- American Institute of the History of Pharmacy - School of Pharmacy - University of Wisconsin
- American Institute of Ultrasound in Medicine
- American Institutes for Research
- American Intellectual Property Law Association
- American Juvenile Arthritis Organization - Arthritis Foundation
- American Kidney Fund
- American Kinesiotherapy Association, Inc.
- American Laryngological Association
- American Latex Allergy Association
- American Leather Chemists Association - Texas Tech University
- American Lebanese Syrian Associated Charities - St. Jude Children's Research Hospital
- American Leprosy Missions
- American Library Association
- American Life League
- American Lithotripsy Society - Urology Society of America
- American Littoral Society
- American Liver Foundation
- American Lung Association
- American Lung Association of Louisiana - American Lung Association
- American Lung Association of Maine
- American Lung Association of Washington - American Lung Association
- American Lyme Disease Foundation, Inc.
- American Macular Degeneration Foundation
- American Management Association
- American Massage Therapy Association
- American Massage Therapy Association Foundation
- American Meat Institute
- American Meat Science Association
- American Medical Association
- American Medical Association - Department of Records Management and Archives - AMA Archives
- American Medical Athletic Association - American Running Association
- American Medical Directors Association
- American Medical Equestrian Association Safe Riders Foundation
- American Medical Group Association
- American Medical Informatics Association
- American Medical Rehabilitation Providers Association
- American Medical Student Association
- American Medical Technologists
- American Medical Women's Association
- American Medical Writers Association
- American Menopause Foundation, Inc.
- American Mental Health Counselors Association
- American Meteorological Society
- American Montessori Society
- American Mosquito Control Association
- American Museum of Natural History
- American Museum of Science and Energy - Office of Science and Technical Information - U.S. Department of Energy
- American Mushroom Institute
- American Music Therapy Association
- American National Metric Council
- American National Standards Institute
- American Near East Refugee Aid
- American Nephrology Nurses' Association
- American Network of Community Options and Resources
- American Neurological Association
- American Nuclear Society
- American Nursery and Landscape Association
- American Nurses Association
- American Nystagmus Network, Inc.
- American Obesity Association
- American Occupational Therapy Association
- American Oil Chemists' Society
- American Optometric Association
- American Optometric Foundation - American Academy of Optometry
- American Optometric Student Association
- American Orchid Society
- American Organization of Nurse Executives - American Hospital Association
- American Organ Transplant Association
- American Ornithologists' Union
- American Orthodontic Society
- American Orthopaedic Foot and Ankle Society
- American Orthopaedic Society for Sports Medicine
- American Orthopsychiatric Association
- American Orthoptic Council
- American Orthotic and Prosthetic Association
- American Osteopathic Academy of Sports Medicine
- American Osteopathic Association
- American Osteopathic College of Anesthesiologists - American Osteopathic Association
- American Osteopathic College of Dermatology - American Osteopathic Association
- American Osteopathic Colleges of Ophthalmology and
- American Osteopathic Foundation - American Osteopathic Association
- American Pain Foundation
- American Pain Society
- American Paraplegia Society
- American Parkinson Disease Association, Inc.
- American Peanut Council
- American Peanut Research and Education Society, Inc.
- American Pediatric Society and Society for Pediatric Research
- American Pet Products Manufacturers Association, Inc.
- American Pharmacists Association
- American Pharmacists Association Academy of Student Pharmacists - American Pharmacists Association
- American Physical Therapy Association
- American Physiological Society
- American Phytopathological Society
- American Podiatric Medical Association
- American Polygraph Association
- American Porphyria Foundation
- American Postal Workers Union - American Federation of Labor-Congress of Industrial Organizations
- American Pregnancy Association
- American Printing House for the Blind, Inc - Department of Educational Research
- American Productivity and Quality Center
- American Professional Society on the Abuse of Children
- American Psychiatric Association
- American Psychiatric Nurses Association
- American Psychoanalytic Association - International Psychoanalytical Association
- American Psychoanalytic Foundation
- American Psychological Association
- American Psychological Association, Division 21 - Division of Applied Experimental and Engineering Psychology - American Psychological Association
- American Psychological Society
- American Psychopathological Association - Department of Psychiatry - Washington University
- American Psychosomatic Society
- American Public Health Association
- American Public Health Services Association
- American Public Works Association
- American Radium Society
- American Recovery Center - Behavioral Health Services
- American Refugee Committee
- American Registry of Diagnostic Medical Sonography
- American Registry of Medical Assistants
- American Rescue Dog Association
- American Rhinologic Society
- American Rivers
- American RSDHope
- American Run for the End of AIDS, Inc.
- American Running Association
- American School Health Association
- American Schools Association
- American Scientific Glassblowers Society
- American Seed Research Foundation
- American Self-Help Clearinghouse - Mental Help Net
- Americans for Better Care of the Dying
- Americans for Democratic Action
- Americans for Indian Opportunity
- Americans for the Arts
- American Shore and Beach Preservation Association
- American Sickle Cell Anemia Association
- American SIDS Institute
- American Skin Association
- American Sleep Apnea Association
- American Social Health Association
- American Society for Adolescent Psychiatry
- American Society for Apheresis
- American Society for Artificial Internal Organs
- American Society for Automation in Pharmacy
- American Society for Bariatric Surgery
- American Society for Biochemistry and Molecular Biology
- American Society for Blood and Marrow Transplantation
- American Society for Cell Biology
- American Society for Clinical Laboratory Science
- American Society for Clinical Pathology
- American Society for Clinical Pharmacology and Therapeutics
- American Society for Colposcopy and Cervical Pathology
- American Society for Cytotechnology
- American Society for Deaf Children
- American Society for Dermatologic Surgery
- American Society for Enology and Viticulture
- American Society for Gastrointestinal Endoscopy
- American Society for Geriatric Dentistry - Special Care Dentistry Association
- American Society for Healthcare Engineering - American Hospital Association
- American Society for Healthcare Food Service Administrators - American Hospital Association
- American Society for Healthcare Human Resources Administration
- American Society for Healthcare Risk Management - American Hospital Association
- American Society for Horticultural Science
- American Society for Information Science and Technology
- American Society for Investigative Pathology
- American Society for Laser Medicine and Surgery, Inc.
- American Society for Microbiology
- American Society for Nutritional Sciences
- American Society for Parenteral and Enteral Nutrition
- American Society for Pharmacology and Experimental Therapeutics
- American Society for Photogrammetry and Remote Sensing - Renewable Natural Resources Foundation
- American Society for Public Administration
- American Society for Quality
- American Society for Quality
- American Society for Reproductive Medicine
- American Society for Surgery of the Hand
- American Society for Testing and Materials International
- American Society for the Advancement of Anesthesia in Dentistry
- American Society for the Alexander Technique
- American Society for the Prevention of Cruelty to Animals
- American Society for Therapeutic Radiology and Oncology
- American Society of Addiction Medicine
- American Society of Agricultural and Biological Engineers
- American Society of Agricultural Consultants
- American Society of Agronomy
- American Society of Andrology
- American Society of Anesthesiologists
- American Society of Animal Science
- American Society of Association Executives - The Center for Association Leadership
- American Society of Bariatric Physicians
- American Society of Breast Disease
- American Society of Brewing Chemists
- American Society of Cataract and Refractive Surgery
- American Society of Civil Engineers
- American Society of Clinical Hypnosis
- American Society of Clinical Oncology
- American Society of Clinical Pathologists - Department of Communications and Membership
- American Society of Clinical Psychopharmacology
- American Society of Colon and Rectal Surgeons
- American Society of Consultant Pharmacists
- American Society of Contemporary Medicine, Surgery and
- American Society of Cytopathology
- American Society of Directors of Volunteer Services - American Hospital Association
- American Society of Dowsers
- American Society of Echocardiography
- American Society of Electroneurodiagnostic Technologists, Inc.
- American Society of Extra-Corporeal Technology, Inc.
- American Society of Farm Managers and Rural Appraisers
- American Society of Gene Therapy
- American Society of Group Psychotherapy and Psychodrama
- American Society of Hand Therapists
- American Society of Health-System Pharmacists
- American Society of Health-System Pharmacists - Archives
- American Society of Hematology
- American Society of Human Genetics
- American Society of Hypertension, Inc.
- American Society of Ichthyologists and Herpetologists - Department of Biological Sciences - Florida International University
- American Society of Laboratory Animal Practitioners
- American Society of Law, Medicine, and Ethics
- American Society of Limnology and Oceanography
- American Society of Mammalogists
- American Society of Master Dental Technologists
- American Society of Maxillofacial Surgeons
- American Society of Nephrology
- American Society of Neuroradiology
- American Society of Ophthalmic Plastic and Reconstructive Surgery
- American Society of Ophthalmic Registered Nurses
- American Society of PeriAnesthesia Nurses
- American Society of Phlebotomy Technicians
- American Society of Plant Biologists
- American Society of Plant Taxonomists - Department of Botany - University of Wyoming
- American Society of Plastic and Reconstructive Surgeons
- American Society of Plastic Surgeons
- American Society of Plastic Surgical Nurses
- American Society of Psychoanalytic Physicians
- American Society of Psychopathology of Expression
- American Society of Questioned Documents Examiners
- American Society of Radiologic Technologists
- American Society of Regional Anesthesia and Pain Medicine
- American Society of Retina Specialists
- American Society of Safety Engineers
- American Society of Sanitary Engineering
- American Society of Sugar Beet Technologists
- American Society of Transplantation
- American Society of Transplant Surgeons
- American Society of Veterinary Ophthalmology - American Animal Hospital Association
- American Society on Aging
- American Sociological Association
- American Speech-Language-Hearing Association
- American Spice Trade Association
- American Spinal Injury Association
- American Statistical Association
- American Stroke Association - American Heart Association
- American Student Dental Association
- American Syringomyelia Alliance Project Inc.
- American Telemedicine Association
- American Therapeutic Recreation Association
- American Thoracic Society
- American Thyroid Association
- American Tinnitus Association
- American Trauma Society
- American Type Culture Collection
- American Urogynecologic Society
- American Urological Association
- American Urological Association Foundation, Inc.
- American Vegan Society
- American Venous Forum
- American Veterinary Chiropractic Association, Inc.
- American Veterinary Dental Society
- American Veterinary Medical Association
- American Veterinary Medical Foundation - American Veterinary Medical Association
- American Vitiligo Research Foundation, Inc.
- American Water Resources Association
- American Water Works Association
- American Wheelchair Bowling Association
- American Wind Energy Association
- American Zoo and Aquarium Association
- America's Athletes with Disabilities, Inc.
- America's Blood Centers
- America's Health Insurance Plans
- America's Health Insurance Plans
- America's Jobline - National Federation of the Blind
- America's Second Harvest
- America the Beautiful Fund
- Ames Library - Office of Aeronautics and Space Technology - National Aeronautics and Space Administration
- Ames Library of South Asia - University of Minnesota
- Amigos de las Americas
- Amistad Research Center at Tulane University
- Amnesty International of the United States of America Inc. - Amnesty International
- Amputee Coalition of America
- Amyloidosis Foundation
- Amyloidosis Support Groups, Inc
- Amyloidosis Support Network
- Amyloidosis Support Network
- Amyotrophic Lateral Sclerosis (ALS) Society of Canada
- Analytical Abstracts - Royal Society of Chemistry
- Analytical Services and Quality Assurance Branch - Mid-Atlantic Environmental Assessment and Innovation Division - Region III - U.S. Environmental Protection Agency
- Anaphylaxis Campaign
- Andalusian Agency for Evaluation of Health Technologies - Agencia de Evaluacion de Technologias Sanatarias de Andalucia - Regional Ministry of Health - Government of Andalusia
- Andrew W. Breidenbach Environmental Research Center Library - U.S. Environmental Protection Agency
- Androgen Insensitivity Syndrome Support Group
- Andromeda Transcultural Mental Health Center - District of Columbia Comprehensive AIDS Resources and Education
- Anemia Institute for Research and Education
- Anesthesia Patient Safety Foundation
- Aneurysm Outreach Inc.
- Angel Flight East
- Angelman Syndrome Foundation, Inc.
- Animal and Natural Resources Institute - Agricultural Research Service - U.S. Department of Agriculture
- Animal and Plant Health Inspection Service - U.S. Department of Agriculture
- Animal Health Diagnostic Center - Department of Population Medicine and Diagnostic Sciences - College of Veterinary Medicine - Cornell University
- Animal Health Division - West Virginia Department of Agriculture - State of West Virginia
- Animal Health Institute
- Animal Medical Center Library - Animal Medical Center
- Animal Production Program - Animal Production and Veterinary Medicine Department - CIRAD - Government of France
- Animal Protection Institute
- Animal Reproduction and Biotechnology Laboratory - Department of Biomedical Sciences - College of Veterinary Medicine and Biomedical Sciences - Colorado State University
- Animal Resources Center - Biological Sciences Division - University of Chicago
- Animal Resources Centre - University of Saskatchewan
- Animals and Society Institute
- Animal Sciences Group - Wageningen University and Research Centre
- Animal Welfare Information Center - National Agricultural Library - Agricultural Research Service - U.S. Department of Agriculture
- Animal Welfare Institute
- Aniridia Network
- Annie E. Casey Foundation
- Anorexia Nervosa and Related Eating Disorders, Inc.
- Anschutz Library - University of Kansas Libraries - University of Kansas
- Ansley J. Coale Population Research Collection - Donald E. Stokes Library - Princeton University
- Anthropology Film Center
- Anthropology Research Museum - Department of Anthropology - University of Nevada, Reno
- Antiepileptic Drug Pregnancy Registry - Genetics and Teratology Unit - Massachusetts General Hospital
- Anxiety and Phobia Treatment Center - White Plains Hospital
- Anxiety Disorders Association of America
- Anxiety Disorders Special Interest Group - Association for Behavioral and Cognitive Therapies - Association for the Advancement of Behavior Therapy
- AOAC International
- Apert Syndrome Pen Pal Network
- A. Philip Randolph Institute - American Federation of Labor and Congress of Industrial
- APHIS Library - Animal and Plant Health Inspection Service - U.S. Department of Agriculture
- Aplastic Anemia and MDS International Foundation, Inc.
- Appalachian Mountain Club
- Appleton-Whittell Research Ranch - National Audubon Society
- Applied Epidemiology - Emory University
- Applied Physics Laboratory - University of Washington
- Applied Population Laboratory - Department of Rural Sociology - College of Agricultural and Life Sciences - University of Wisconsin-Madison
- Applied Research Ethics National Association - Public Responsibility in Medicine and Research
- Apraxia-Kids - Childhood Apraxia of Speech Association of North America
- Aprovecho Research Center
- Aquatic Plant Management Society, Inc.
- Aquatic Research Interactive, Inc.
- Aquatic, Wetland, and Invasive Plant Information Retrieval System - Center for Aquatic and Invasive Plants - Institute of Food and Agricultural Services - University of Florida
- Arboretum - Center for Restoration Ecology - University of Wisconsin-Madison
- Arboretum - Connecticut College
- Arboretum of Los Angeles County - Los Angeles Arboretum Foundation - Los Angeles County Department of Parks and Recreation
- Arboretum - University of Alabama
- Arboretum - University of California at Santa Cruz
- Archaeological Research Center and Museum - Department of Sociology and Anthropology - Seton Hall University
- Archival Center for Radiation Biology - Special Collections - James D. Hoskins Library - University of Tennessee
- Archives and Oral History Project - Office of the Chancellor - Baylor College of Medicine
- Archives and Special Collections on Women in Medicine and - College of Medicine - Drexel University
- Archives for Family Practice - American Academy of Family Physicians Foundation
- Archives of the History of American Psychology - University of Akron
- Archives of the Mount Sinai Medical Center - Gustave L. and Janet W. Levy Library - Mount Sinai Medical Center
- Archivists and Librarians in the History of the Health Sciences - History and Special Collections Division - Louise M. Darling Biomedical Library - University of California at Los Angeles
- ARCH National Respite Network and Resource Center
- Arc of the United States
- Arctic Council Indigenous Peoples' Secretariat
- Arctic Environmental Information and Data Center - Environment and Natural Resources Institute - University of Alaska Anchorage
- Arctic Institute of North America - University of Calgary
- Arctic Research Consortium of the United States
- Area Health Education Center--California
- Area Health Education Center--Georgia - School of Medicine - Mercer University - Medical College of Georgia
- Area Health Education Center - Health Sciences Center - College of Medicine - University of South Florida
- Area Health Education Center--Kansas - University of Kansas Medical Center
- Area Health Education Center - Medical College of Ohio
- Area Health Education Center--Mississippi - Department of Family Medicine - University of Mississippi Medical Center - University of Mississippi
- Area Health Education Center--New York - Department of Family Medicine - School of Medicine and Biomedical Sciences - State University of New York at Buffalo
- Area Health Education Center--Nova Southeastern University - Health Professions Division - College of Osteopathic Medicine - Nova Southeastern University
- Area Health Education Center Ohio Statewide Program - College of Medicine - Ohio State University
- Area Health Education Centers Program - University of Florida
- Argonne National Laboratory - University of Chicago - Office of Science - U.S. Department of Energy
- Arizona Agricultural Experiment Station - College of Agriculture and Life Sciences - University of Arizona
- Arizona Area Health Education Centers Program - Arizona Health Sciences Center - University of Arizona
- Arizona Association for Home Care - National Association for Home Care and Hospice
- Arizona Department of Education - Arizona State Government
- Arizona Health Care Cost Containment System - Centers for Medicare and Medicaid Services - Arizona State Government
- Arizona Poison and Drug Information Center - Arizona Health Sciences Center - College of Pharmacy - University of Arizona
- Arizona-Sonora Desert Museum
- Arizona State Museum - University of Arizona
- Arizona State Office of Rural Health - Arizona's State Office of Public Health - Mel and Enid Zuckerman Arizona College of Public Health - University of Arizona
- Arkansas Agricultural Experiment Station - Division of Agriculture - University of Arkansas
- Arkansas Area Health Education Centers Program - University of Arkansas for Medical Sciences
- Arkansas Area Health Education Center - University of Arkansas for Medical Sciences
- Arkansas Hospital Association
- Arkansas Natural Heritage Commission
- Arkansas Natural Resources Commission
- Arkansas Water Resources Center - University of Arkansas
- Arkansas-White-Red Basins Inter-Agency Committee - Natural Resources Conservation Service - U.S. Department of Agriculture
- Armed Forces Institute of Pathology - U.S. Department of Defense
- Armed Forces Medical Library - Office of the Surgeon General - U.S. Army - U.S. Department of Defense
- Army Public Health Nursing Section - Department of Preventive Medicine - Brooke Army Medical Center
- Arsenal Family and Children's Center
- Arthritis and Musculoskeletal Center - Division of Clinical Immunology and Rheumatology - University of Alabama Birmingham
- Arthritis Answers - Arthritis Foundation
- Arthritis Center - Silvio O. Conte Medical Research Center - School of Medicine - Boston University
- Arthritis Foundation
- Arthritis National Research Foundation
- Arthritis, Rheumatism, and Aging Medical Information System - Department of Immunology and Rheumatology - Stanford University Department of Medicine
- Arthritis Society of Canada
- Arthritis Trust of America
- Arthropod-Borne Animal Diseases Research Laboratory - Agricultural Research Service - U.S. Department of Agriculture
- Arthroscopy Association of North America
- Arthur Bedell Memorial Library - Wills Eye Hospital
- Arthur E. Guedel Memorial Anesthesia Center - Health Sciences Library - California Pacific Medical Center
- Arthur G. James Cancer Hospital and Richard J. Solove Research - Comprehensive Cancer Center - Ohio State University Medical Center - Ohio State University
- Artificial Cells and Organs Research Center - McGill University
- Artificial Intelligence Center - SRI International
- Asbestos Information Association/North America
- Asbestos Victims of America
- Ashley Jolly Sudden Adult Death Trust United Kingdom
- Asia and Pacific Regional Bureau for Education - UNESCO
- Asian American Studies Collection - Ethnic Studies Library - University of California, Berkeley
- Asian and Pacific Islander American Health Forum
- Asian Communities for Reproductive Justice
- Asian Law Caucus, Inc.
- Asian Vegetable Research and Development Center
- Asia Pacific Council of AIDS Service Organizations - International Council on AIDS Service Organizations
- Asia-Pacific Fishery Commission - Food and Agriculture Organization - United Nations
- Asia Pacific Office - Consumers International
- Asia Society
- Ask-A-Nurse - Saint Vincent Health System
- ASPCA Animal Poison Control Center - American Society for the Prevention of Cruelty to Animals
- ASPIRA Association, Inc.
- Assistant Secretary for Planning and Evaluation - U.S. Department of Health and Human Services
- Assisted Living Federation of America
- Associated Services for the Blind
- Association for Academic Minority Physicians, Inc. - School of Medicine - University of Maryland
- Association for Academic Psychiatry
- Association for Adult Development and Aging - American Counseling Association
- Association for Advancement of Mental Health
- Association for Ambulatory Behavioral Health
- Association for Ambulatory Behavioral Healthcare
- Association for Applied Psychophysiology and Biofeedback
- Association for Assessment and Accreditation of Laboratory Animal
- Association for Behavioral and Cognitive Therapies
- Association for Behavioral Health and Wellness
- Association for Career and Technical Education
- Association for Childhood Education International
- Association for Children for Enforcement of Support
- Association for Children's Palliative Care
- Association for Children with Down Syndrome, Inc.
- Association for Community Based Education
- Association for Conservation Information, Inc. - Nevada Department of Wildlife
- Association for Counselor Education and Supervision - American Counseling Association
- Association for Driver Rehabilitation Specialists
- Association for Education and Rehabilitation of the Blind and
- Association for Experiential Education
- Association for Gerontology in Higher Education - Gerontological Society of America
- Association for Glycogen Storage Disease
- Association for Glycogen Storage Disease
- Association for Gnotobiotics - North Carolina State University
- Association for Healthcare Philanthropy
- Association for Hospital Medical Education
- Association for Humanistic Psychology
- Association for Improvements in the Maternity Services
- Association for Information and Image Management International
- Association for Library Service to Children - American Library Association
- Association for Macular Diseases, Inc.
- Association for Maternal and Child Health Programs
- Association for Medical Education and Research in Substance Abuse
- Association for Multiple Endocrine Neoplasia Disorders
- Association for Persons in Supported Employment
- Association for Persons with Severe Handicaps
- Association for Population and Family Planning Libraries and - Family Health International
- Association for Post-Natal Illness
- Association for Pre- and Perinatal Psychology and Health
- Association for Prevention Teaching and Research
- Association for Professionals in Infection Control and
- Association for Progressive Communication
- Association for Recognizing the Life of Stillborns
- Association for Repetitive Motion Syndromes
- Association for Research in Otolaryngology
- Association for Research in Vision and Ophthalmology
- Association for Research of Childhood Cancer
- Association for Retinopathy of Prematurity and Related Diseases
- Association for Specialists in Group Work Training Institute - American Counseling Association
- Association for Supervision and Curriculum Development
- Association for Systems Management - Marriott School - Brigham Young University
- Association for the Advancement of Automotive Medicine
- Association for the Advancement of Blind and Retarded
- Association for the Advancement of Medical Instrumentation
- Association for the Advancement of Psychology
- Association for the Advancement of Psychotherapy
- Association for Women in Science
- Association of Academic Health Centers
- Association of Academic Physiatrists
- Association of Air Medical Services
- Association of American Cancer Institutes
- Association of American Colleges and Universities
- Association of American Feed Control Officials
- Association of American Indian Physicians
- Association of American Medical Colleges
- Association of American Medical Colleges - Reference Center
- Association of American Pesticide Control Officials
- Association of American Physicians and Surgeons
- Association of American Plant Food Control Officials
- Association of American Universities
- Association of American Veterinary Medical Colleges
- Association of Applied IPM Ecologists
- Association of Asian Pacific Community Health Organizations - Organizations
- Association of Avian Veterinarians
- Association of Behavioral Healthcare Management - National Council for Community Behavioral Healthcare
- Association of Black Cardiologists, Inc.
- Association of Black Psychologists
- Association of Brethren Caregivers - Church of the Brethren
- Association of Catholic Colleges and Universities - National Catholic Educational Association
- Association of Children's Prosthetic-Orthotic Clinics
- Association of Clinical Scientists
- Association of Clinicians for the Underserved
- Association of College and Research Libraries - American Library Association
- Association of College Honor Societies
- Association of Community Cancer Centers
- Association of Community Health Councils for England and Wales
- Association of Community Mental Health Centers of Kansas, Inc.
- Association of Computer-based Systems for Career Information
- Association of Consulting Chemists and Chemical Engineers, Inc.
- Association of Departments of Foreign Languages
- Association of Environmental Engineering and Science Professors
- Association of Faculties of Medicine of Canada
- Association of Faculties of Pharmacy of Canada
- Association of Farmworker Opportunity Programs
- Association of Field Ornithologists - Ornithological Societies of North America
- Association of Food and Drug Officials
- Association of Freestanding Radiation Oncology Centers
- Association of Fund-Raising Distributors and Suppliers
- Association of Gastrointestinal Motility Disorders, Inc.
- Association of Gay and Lesbian Psychiatrists
- Association of Higher Education Facilities Officers - Association of Physical Plant Administrators
- Association of Home Appliance Manufacturers
- Association of International Educators - National Association for Foreign Student Affairs
- Association of Jesuit Colleges and Universities
- Association of Jewish Aging Services
- Association of Jewish Family and Children's Agencies
- Association of Jewish Libraries
- Association of Junior Leagues International Inc.
- Association of Labor Assistants and Childbirth Educators
- Association of Late Deafened Adults, Inc.
- Association of Maternal and Child Health Programs
- Association of Medical Illustrators
- Association of Medical School Pediatric Department Chairs
- Association of Minority Health Professions Schools, Inc. - Minority Health Professions Foundation
- Association of Nurses in AIDS Care
- Association of Nutrition Services Agencies
- Association of Occupational and Environmental Clinics
- Association of Official Racing Chemists - Association of Racing Commissioners International
- Association of Official Seed Analysts
- Association of Online Cancer Resources, Inc.
- Association of Operating Room Nurses, Inc.
- Association of Pediatric Oncology Nurses
- Association of Physician Assistants in Cardiovascular Surgery
- Association of Pool and Spa Professionals
- Association of Professional Chaplains
- Association of Professional Piercers
- Association of Public Health Laboratories
- Association of Regulatory Boards of Optometry
- Association of Rehabilitation Nurses
- Association of Reproductive Health Professionals
- Association of Schools and Colleges of Optometry
- Association of Schools of Allied Health Professions
- Association of Schools of Public Health
- Association of Science-Technology Centers
- Association of State and Interstate Water Pollution Control
- Association of State and Territorial Dental Directors
- Association of State and Territorial Health Officials
- Association of State and Territorial Solid Waste Management
- Association of Sudden Infant Death Syndrome and Infant Mortality
- Association of Surgical Technologists
- Association of Teachers of Maternal and Child Health
- Association of Telehealth Service Providers
- Association of University Anesthesiologists
- Association of University Centers on Disabilities
- Association of University Programs in Health Administration
- Association of Vision Science Librarians - Association of Schools and Colleges of Optometry - Medical Library Association
- Association of Women's Health, Obstetric and Neonatal Nurses
- Association on American Indian Affairs
- Association on Higher Education and Disability
- Asthma and Allergy Foundation of America
- Asthma Foundation of Southern Arizona
- Asthma Society of Canada
- ASTM Committee D19 on Water - American Society for Testing and Materials International
- ASTM International
- Ataxia-telangiectasia Children's Project
- Athealth.com
- Athletes and Entertainers for Kids
- Atlanta Regional Support Office - U.S. Department of Energy
- Atlantic Research Centre - Department of Pediatrics - Dalhousie University
- Atlantic Salmon Federation
- A-T Medical Research Foundation
- Attention Deficit Disorder Association
- Atypical HUS Website
- Auburn University Environmental Institute - Auburn University
- Audio-Digest Foundation - California Medical Association
- AudioVisuals Online - National Library of Medicine - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- Auditory-Verbal International, Inc.
- Audubon Naturalist Society
- Audubon of Florida
- Audubon Society of Rhode Island
- Augustus C. Long Health Sciences Library - Columbia University
- Augustus C. Long Health Sciences Library - Special Collections - Columbia University
- Auke Bay Laboratory - Alaska Fisheries Science Center - National Marine Fisheries Service
- Aullwood Audubon Center and Farm - National Audubon Society
- Austen Riggs Center Publications Library - Austen Riggs Center
- Australasian Cochrane Center - Cochrane Collaboration - Australian Department of Health
- Australian Healthcare Association
- Australian Institute of Radiography
- Australian Leukodystrophy Support Group, Inc.
- Australian National Reference Laboratory in Medical Mycology - Royal North Shore Hospital of Sydney
- Austrian Research Foundation for Development Cooperation
- Autism Network for Hearing and Visually Impaired Persons
- Autism Research Institute - Center for the Study of Autism
- Autism Services Center
- Autism Society of America
- Autism Speaks
- Autism Speaks
- Autism Speaks
- Autoimmune Information Network, Inc
- Autoimmunity Research Foundation
- Automated Imaging Association - Automation Technologies Council
- AVENUES
- AVERT
- Avian Genetic Resource Laboratory - Agriculture and Agri-Foods Canada
- Aviation Applied Technology Directorate - Aviation and Troop Command - U.S. Army - U.S. Department of Defense
- Aviation Crime Prevention Institute,Inc.
- Aviation Weather Center - National Centers for Environmental Prediction - National Oceanic and Atmospheric Administration - U.S. Department of Commerce
- AWARE Talk Radio
- Ayurvedic Institute