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- Idaho Agricultural Experiment Station - College of Agricultural and Life Sciences - University of Idaho
- Idaho Commission on Aging
- Idaho Council on Industry and the Environment
- Idaho Department of Education - State of Idaho
- Idaho Department of Health and Welfare - State of Idaho
- Idaho Department of Water Resources - Idaho State Government
- Idaho State Department of Agriculture
- Idaho State Office of Rural Health - Idaho Department of Health and Welfare
- Idaho Water Resources Research Institute - University of Idaho
- IEEE Computer Society
- IFI Claims Patent Services
- IgA Nephropathy Support Network
- I Have a Dream Foundation
- IIT Research Institute
- Illinois Agricultural Experiment Station - College of Agricultural, Consumer, and Environmental Sciences - University of Illinois at Urbana-Champaign
- Illinois Caucus for Adolescent Health
- Illinois Chapter - The Nature Conservancy
- Illinois Department of Agriculture
- Illinois Department of Healthcare and Family Services
- Illinois Department of Human Services
- Illinois Department of Natural Resources - Illinois State Government
- Illinois Department of Public Health - State of Illinois
- Illinois Department of Transportation
- Illinois Department on Aging - Illinois State Government
- Illinois Early Childhood Intervention Clearinghouse - Illinois Public Health Association
- Illinois Education Association - National Education Association
- Illinois Emergency Management Agency
- Illinois Environmental Protection Agency
- Illinois Environmental Protection Agency Library - Illinois Environmental Protection Agency - Illinois State Government
- Illinois Health Care Cost Containment Council
- Illinois Health Education Consortium and Area Health Education
- Illinois Nature Preserves Commission
- Illinois Psychological Association - American Psychological Association
- Illinois Self-Help Coalition
- Illinois State Library - Illinois State Government
- Illinois State Museum - Illinois State Government
- Illinois State Police
- Illinois Teratogen Information Service
- Illinois Water Resources Center - University of Illinois at Urbana-Champaign - National Institutes of Water Resources - U.S. Geological Survey
- Illinois Wildlife Federation
- Illuminating Engineering Society of North America
- Immune Deficiency Foundation
- Immunization Action Coalition
- Immunology Abstracts - Cambridge Scientific Abstracts
- Impotence World Association
- Incontinentia Pigmenti International Foundation
- Independence Institute
- Independent Sector
- Index of Conference Proceedings - Conference Collections - Document Supply Centre - British Library
- Indiana Audubon Society
- Indiana Chapter - Nature Conservancy
- Indiana Department of Insurance - State of Indiana
- Indiana Division of Aging - Indiana Family and Social Services Administration - State of Indiana
- Indian Agricultural Research Institute
- Indiana Institute on Disability and Community - Indiana's University Center for Excellence in Developmental
- Indiana Protection and Advocacy Services - Indiana State Government
- Indiana State Budget Agency - State of Indiana
- Indiana State Department of Health
- Indiana State Library
- Indiana State Office of Rural Health - Local Liaison Office - Indiana State Department of Health
- Indiana Teratogen Information Service - Clinical Genetics Division - Department of Medical and Molecular Genetics - Indiana University School of Medicine
- Indiana Water Resources Research Center - National Institutes for Water Resources
- Indiana Youth Institute
- Indian Council of Medical Research - Ministry of Health and Family Welfare - Government of India
- Indian Health Service in Tucson - Public Health Service - U.S. Department of Health and Human Services
- Indian Health Service - Public Health Service - U.S. Department of Health and Human Services
- Indian Youth of America
- Indice Medico Espanol - Instituto de Historia de la Ciencia y Documentacion Lopez Pinero - Universidad de Valencia - CSIC
- Individuals and Households Program - Federal Emergency Management Agency
- Indoor Air Quality Information Clearinghouse - Office of Air and Radiation - Indoor Environments Division - U.S. Environmental Protection Agency
- Indoor Environmental Quality Committee - American Industrial Hygiene Association
- Industrial Health Foundation
- Industrial Hygiene Department - Occupational Safety and Health - Bureau of Medicine and Surgery - Naval Medical Center, Portsmouth - U.S. Department of the Navy
- Industrial Research Limited
- Industry/University Center for Biosurfaces - National Science Foundation
- Infant/Child/Parent Development Program - Center on the Family - Graduate School - Texas Southern University
- Infant-Parent Institute
- Infectious Diseases Society of America
- Information and Referral - Mental Health Association of Tarrant County
- Information and Referral Services - The Planning Council
- Information and Resource Line - Mental Health Association in Illinois
- Information Business Unit - Information and Documentation Center - French Institute of Petroleum
- Information Center - British Diabetic Association
- Information Center - Corporate Technology Center - GenCorp, Inc.
- Information Center for Individuals with Disabilities
- Information Center - Medical Group Management Association
- Information Division - Foreign Agricultural Service - U.S. Department of Agriculture
- Information for Consumers - U.S. Food and Drug Administration - U.S. Department of Health and Human Services
- Information Resource Center - Division of Science, Research and Technology - New Jersey Department of Environmental Protection
- Information Resources and Inquiries Branch - Office of Communications and Public Liaison - National Institute of Mental Health - National Institutes of Health - Public Health Services - U.S. Department of Health and Human Services
- Information Resources Branch - Education and Information Division - National Institute for Occupational Safety and Health - Centers for Disease Control and Prevention - U.S. Department of Health and Human Services
- Information Services Branch - National Agricultural Statistics Service - U.S. Department of Agriculture
- Information Sevices Core - Hopkins Population Center - Bloomberg School of Public Health - Johns Hopkins University
- Information Systems for Biotechnology - National Biological Impact Assessment Program - Virginia Polyechnical Institute and State University
- Information Technology Department - Oklahoma State University
- Infusion Nurses Society
- Inherited Metabolic Disease Clinic - Children's Hospital
- Injury Prevention and Control Program - Department of Public Health - Massachusetts State Government
- Injury Prevention Center - Dartmouth Medical School - Dartmouth-Hitchcock Medical Center - Dartmouth College
- Injury Prevention Research Center - Institute for Rural and Environmental Health - Department of Occupational and Environmental Health - College of Public Health - University of Iowa
- Injury Prevention Research Center - University of North Carolina
- In Need of Diagnosis, Inc.
- Innovative Medical Communications
- Insect and Pest Control Section - Food and Agriculture Organization - International Atomic Energy Agency
- Insect Control and Research, Inc.
- Insight Center for Community Economic Development
- Institute for Advanced Studies in Aging and Geriatric Medicine
- Institute for Advanced Study of the Communication Processes - Department of Communication Sciences and Disorders - College of Liberal Arts and Sciences - University of Florida
- Institute for Alternative Futures
- Institute for Applied Interdisciplinary Research - Graduate Studies Division - University of Cincinnati
- Institute for Applied Research Services - University of New Mexico
- Institute for Basic Research in Developmental Disabilities - Office of Mental Retardation and Developmental Disabilities - New York State Government
- Institute for Behavioral Genetics - University of Colorado, Boulder
- Institute for Behavioral Research - University of Georgia
- Institute for Certification of Computing Professionals
- Institute for Child Health Policy - University of Florida
- Institute for Child Health Policy - University of Florida
- Institute for Child Study - Department of Human Development - College of Education - University of Maryland
- Institute for Clinical Evaluative Sciences
- Institute for Clinical Systems Improvement
- Institute for Commercial Forestry Research
- Institute for Comparative and Environmental Toxicology - Department of Food Sciences - Cornell University
- Institute for Defense and Disarmament Studies
- Institute for Development of Educational Activities, Inc.
- Institute for Educational Leadership
- Institute for Environmental Sciences and Engineering - University of California Berkeley
- Institute for Environmental Studies - College of Arts and Sciences - Western Illinois University
- Institute for Families
- Institute for Families in Society - University of South Carolina
- Institute for Family-Centered Care
- Institute for Fisheries Research - Michigan Department of Natural Resources - Michigan State Government
- Institute for Futures Studies - Institutet for Framtidsstudier
- Institute for Healthcare Improvement
- Institute for Healthcare Studies - Feinberg School of Medicine - Northwestern University
- Institute for Health Freedom
- Institute for Health Policy Analysis
- Institute for Health Policy - Edmund S. Muskie School of Public Service - University of Southern Maine
- Institute for Health Policy - School of Public Health - University of Texas - Houston Health Science Center - University of Texas System
- Institute for Health Policy Solutions
- Institute for Health Policy Studies - School of Medicine - University of California, San Francisco
- Institute for International Research - Informa
- Institute for Juvenile Research - Department of Psychiatry - University of Illinois at Chicago
- Institute for Laboratory Animal Research - Division on Earth and Life Studies - National Academies
- Institute for Medical Outcome Research
- Institute for Medical Technology Assessment - Erasmus MC, University Medical Center Rotterdam
- Institute for Mental Health Initiatives - School of Public Health and Health Services - George Washington University Medical Center
- Institute for Microbiology - Federal Dairy Research Center - Government of Germany
- Institute for Operations Research and the Management Sciences
- Institute for Philosophy and Public Policy - School of Public Affairs - University of Maryland
- Institute for Physical Research and Technology - Iowa State University
- Institute for Policy Research - Northwestern University
- Institute for Policy Research - University of Cincinnati
- Institute for Policy Studies
- Institute for Public Service and Policy Research - College of Arts and Sciences - University of South Carolina
- Institute for Quantum and Complex Dynamics - Physics Department - University of California, Santa Barbara
- Institute for Reproductive Health - Georgetown University Medical Center - Georgetown University
- Institute for Research on Poverty - University of Wisconsin-Madison
- Institute for Research on Women and Gender - School of Humanities and Sciences - Stanford University
- Institute for Research on Women - Office of the Dean - Faculty of Arts and Sciences - Rutgers-New Brunswick - Rutgers, The State University of New Jersey
- Institute for Resource Information Systems - Cornell University
- Institute for Responsive Education - School of Education - Cambridge College
- Institute for Safe Medication Practices
- Institute for Scientific Analysis - Scientific Analysis Corporation
- Institute for Sensory Research - Syracuse University
- Institute for Social Research - University of Michigan
- Institute for Social Research - York University
- Institute for Social Science Research - University of California at Los Angeles
- Institute for Socioeconomic Studies
- Institute for Systems Design and Optimization - Department of Chemical Engineering - Kansas State University
- Institute for the Advancement of Human Behavior
- Institute for the Future
- Institute for Theological Encounter with Science and Technology
- Institute for Tuberculosis Research - College of Pharmacy - University of Illinois at Chicago
- Institute for Women�s Health - Texas Woman's University
- Institute for Women's Policy Research
- Institute of Acoustics
- Institute of Agriculture and Natural Resources - Department of Agronomy and Horticulture - University of Nebraska
- Institute of Agrochemistry and Food Technology - Spanish Council for Scientific Research - Spanish Ministry of Science and Technology
- Institute of Air and Space Law - McGill University
- Institute of American Indian Arts Library - Institute of American Indian Arts
- Institute of American Indian Studies - University of South Dakota
- Institute of Animal Science - Agriculture Research Organization of Israel - Ministry of Agriculture - Government of Israel
- Institute of Arctic and Alpine Research - Graduate School - University of Colorado at Boulder
- Institute of Arctic Biology - Biology and Wildlife Department - Alaska Cooperative Fish and Wildlife Research Unit - University of Alaska Fairbanks
- Institute of Arctic Biology - University of Alaska
- Institute of Arthropodology and Parasitology - Georgia Southern University
- Institute of Atmospheric Physics - Department of Atmospheric Sciences - University of Arizona
- Institute of Atmospheric Sciences - South Dakota School of Mines and Technology
- Institute of Biological Chemistry - College of Agricultural, Human and Natural Resource Sciences - Washington State University
- Institute of Botany and Botanical Garden - University of Vienna
- Institute of Business and Economics Research - University of California, Berkeley
- Institute of Chemical Technology, Prague - Czech Technical University
- Institute of Child Development - College of Education and Human Development - University of Minnesota
- Institute of Community Medicine - University of Tromso
- Institute of Comparative Medicine - Health Sciences Division - Columbia University
- Institute of Cytology and Genetics - Siberian Branch - Russian Academy of Sciences
- Institute of Education Sciences - U.S. Department of Education
- Institute of Electrical and Electronics Engineers, Inc.
- Institute of Environmental Sciences and Technology
- Institute of Food and Agricultural Sciences - University of Florida
- Institute of Food Technologists
- Institute of Forest Genetics - Pacific Southwest Research Station - U.S. Department of Agriculture
- Institute of Genetics and Animal Breeding - Polish Academy of Sciences
- Institute of Gerontology - Wayne State University
- Institute of Government and Public Affairs - University of Illinois
- Institute of Healthcare Management
- Institute of Health Carlos III - Ministry of Health and Consumption - Government of Spain
- Institute of Health Economics
- Institute of Health Economics
- Institute of HeartMath
- Institute of Higher Education - University of Georgia
- Institute of Human Nutrition - College of Physicians and Surgeons - Columbia University
- Institute of Human Virology - University of Maryland Biotechnology Institute
- Institute of Makers of Explosives
- Institute of Materials, Minerals and Mining
- Institute of Medical and Veterinary Science
- Institute of Medicine - National Academy of Sciences
- Institute of Mental Health Research - Royal Ottawa Health Care Group - University of Ottawa
- Institute of Molecular Biology - University of Oregon
- Institute of Molecular Biophysics - Florida State University
- Institute of Molecular Cell Biology and Genetics - National Center for Scientific Research - National Institute of Health and Medical Research - University of Louis Pasteur
- Institute of Molecular Genetics - Department of Physico-Chemical Biology - Russian Academy of Sciences
- Institute of Noetic Sciences
- Institute of Noise Control Engineering of the United States of - International Institute of Noise Control Engineering
- Institute of Nuclear Materials Management
- Institute of Nutrition of Central America and Panama
- Institute of Physics and Engineering in Medicine
- Institute of Psychiatric Research - Department of Psychiatry - School of Medicine - Indiana University
- Institute of Public and Urban Affairs - University of Connecticut
- Institute of Public Health Iasi - Romanian Ministry of Health
- Institute of Shortening and Edible Oils
- Institute of Soil, Water, and Environmental Sciences - Agricultural Research Organization of Israel - Ministry of Agriculture and Rural Development - State of Israel
- Institute of Sound and Vibration Research - University of Southampton
- Institute of Technology Assessment - Austrian Academy of Sciences
- Institute of the History of Medicine - Historical Collection - Johns Hopkins University
- Institute of Trichologists
- Institute of Viticulture and Enology - Ministry of Agriculture, Forestry, and Water Management
- Institute of Water Research - Michigan State University
- Institute on Aging - School of Community Health - College of Urban and Public Affairs - Portland State University
- Institute on Aging - Temple University
- Institute on Disabilities - Temple University
- Institute on Human Development and Disability - College of Family and Consumer Sciences - University of Georgia
- Institut fur Geschichte der Medizin der Robert Bosch Stiftung - Bibliothek
- Institut Panos Paris
- Institut Pasteur
- Instructional Media Development Center - School of Education - University of Wisconsin-Madison
- Instructional Media Library - Office of Instructional Development - University of California, Los Angeles
- Insurance Commission - State of West Virginia
- Insurance Department - New York State Government
- Insurance Information Institute
- Insurance Institute for Highway Safety
- Insure Kids Now! - Health Resources and Services Administration - U.S. Department of Health and Human Services
- Integrated Plant Protection Center - Oregon State University
- Integrated Risk Information System - National Center for Environmental Assessment - Office of Research and Development - U.S. Environmental Protection Agency
- Intensive Air, Inc.
- InterAction - American Council for Voluntary International Action
- Interagency Coalition on AIDS and Development
- Interamerican College of Physicians and Surgeons, Inc.
- Inter-American Commission on Human Rights - Organization of American States
- Interamerican Indian Institute - Organization of American States
- Inter-American Tropical Tuna Commission
- Intercollegiate Studies Institute
- Intercultural Cancer Council - Baylor College of Medicine
- Intercultural Center for the Study of Deserts and Oceans - Centro de Estudios de Desiertos y Oceanos
- Intercultural Development Research Association
- Interdisciplinary Center for Biotechnology Research - Biotechnology Program - University of Florida
- Interdisciplinary Health Research Group - University of Montreal
- InterDok Corporation
- Intergovernmental Council for the General Information Program - United Nations Educational, Scientific and Cultural Organization
- Interlibrary Loan Division - Collections Access, Loan and Management Division - Library of Congress - U.S. Congress
- Intermountain Cystic Fibrosis Center - Pulmonary Services - Health Science Center - University of Utah Hospitals and Clinics
- Intermountain Herbarium - Department of Biology - Utah State University
- International Academy for Preventive Medicine
- International Academy of Cytology
- International Academy of Law and Mental Health - Faculty of Medicine - University of Montreal
- International Accounting Standards Board - International Accounting Standards Committee Foundation
- International Advocate for Glycoprotein Storage Diseases
- International Agency for Research on Cancer - World Health Organization
- International Airline Passengers Association
- International Air Transport Association
- International Alliance of ALS/MND Associations on the Internet
- International and American Associations of Clinical Nutritionists
- International Anesthesia Research Society
- International Association for Aquatic Animal Medicine
- International Association for Chronic Fatigue Syndrome
- International Association for Comparative Research on Leukemia
- International Association for Cross-Cultural Psychology - International Union of Psychological Science
- International Association for Dental Research
- International Association for Food Protection
- International Association for Great Lakes Research
- International Association for Identification
- International Association for Mathematics and Computers in
- International Association for Medical Assistance to Travellers
- International Association for Near-Death Studies, Inc.
- International Association for Orthodontics
- International Association for Plant Taxonomy - International Union of Biological Sciences
- International Association for the Physical Sciences of the Ocean - International Union of Geodesy and Geophysics - International Council for Science
- International Association for the Study of Dreams
- International Association for the Study of Pain
- International Association for the Study of the Liver
- International Association for the Study of Traditional Asian
- International Association for Vegetation Science
- International Association of Applied Psychology
- International Association of Campus Law Enforcement
- International Association of Cancer Victors and Friends
- International Association of Chiefs of Police
- International Association of Coroners and Medical Examiners
- International Association of Counseling Services
- International Association of Counselors and Therapists
- International Association of Eating Disorders Professionals
- International Association of Fire Chiefs
- International Association of Fire Fighters
- International Association of Food Industry Suppliers
- International Association of Healthcare Central Service Material
- International Association of Hydrological Sciences - International Union of Geodesy and Geophysics
- International Association of Industrial Accident Boards and
- International Association of Laryngectomees
- International Association of Logopedics and Phoniatrics
- International Association of Marriage and Family Counselors - American Counseling Association
- International Association of Milk Control Agencies
- International Association of Physicians in AIDS Care
- International Association of Universities - International Universities Bureau - United Nations Educational, Scientific and Cultural Organization
- International Association of Women Police
- International Behavioral Neuroscience Society
- International Biometric Society
- International Brain Research Organization
- International Bulb Society, Inc.
- International Cadmium Association
- International Cancer Alliance for Research and Education
- International Cancer Research Data Bank Branch - National Cancer Institute - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- International Cancer Research Data Bank Branch - Office of Cancer Information Products and Systems - Office of Communications - National Cancer Institute - National Institutes of Health - U.S. Department of Health and Human Services
- International Cemetery, Cremation and Funeral Association
- International Center - Council of State Governments
- International Center for Agricultural Research in the Dry Areas - Consultative Group on International Agricultural Research
- International Center for Arid and Semiarid Land Studies - Office of International Affairs - Texas Tech University
- International Center for Attitudinal Healing - International Network Attitudinal Healing
- International Center for Fabry Disease
- International Center for HIV/AIDS Research and Clinical Training - School of Nursing - University of California, San Francisco
- International Center for Research on Women
- International Center for Studies in Creativity - Buffalo State College - State University of New York
- International Center for the Disabled
- International Center for the Solution of Environmental Problems - Citizens' Environmental Coalition
- International Centre for Migration and Health
- International Cesarean Awareness Network, Inc.
- International Chemical Workers Union Council
- International Childbirth Education Association, Inc.
- International Child Resource Institute
- International Chiropractors Association
- International Civil Aviation Organization
- International Code Council
- International Collection of Microorganisms from Plants - New Zealand Reference Culture Collection
- International College of Dentists
- International Commission for Hair Removal Certification - Society for Clinical and Medical Hair Removal, Inc.
- International Commission for the Prevention of Alcoholism and
- International Commission for the Prevention of Alcoholism and - United Nations
- International Commission on Atmospheric Electricity - International Association of Meteorology and Atmospheric Science - International Union of Geodesy and Geophysics
- International Commission on Radiation Units and Measurements,
- International Commission on Zoological Nomenclature
- International Committee Against Mental Illness
- International Committee of Military Medicine
- International Committee of the Red Cross - International Red Cross and Red Crescent Movement
- International Communication Association, Inc.
- International Community Corrections Association
- International Confederation for Plastic Reconstructive and
- International Confederation of Midwives
- International Construction Database - Fraunhofer Information Center for Regional Planning and Building
- International Consumer Product Health and Safety Organization
- International Costello Syndrome Support Group
- International Costello Syndrome Support Group (UK)
- International Cotton Advisory Committee
- International Council for Health, Physical Education, Recreation,
- International Council for Laboratory Animal Science
- International Council for Science
- International Council for Standardization in Haematology - International Society of Haematology
- International Council for the Exploration of the Sea
- International Council of AIDS Service Organizations
- International Council of Nurses
- International Council of Women
- International Council on Education for Teaching - National-Louis University
- International Council on Social Welfare
- International Council on Women's Health Issues
- International Criminal Police Organization
- International Critical Incident Stress Foundation, Inc.
- International Cultic Studies Association
- International Development Group - Center for Human Services - University Research Co., LLC
- International Development Research Centre
- International Diabetes Center - Park Nicollet Medical Foundation
- International Diabetes Federation
- International Division - Advocates for Youth
- International Dyslexia Association
- International Dyslexia Association
- International Ecology Society
- International Electrotechnical Commission
- International Epidemiological Association
- International Essential Tremor Foundation
- International Facility Management Association
- International Federation for Information and Documentation
- International Federation of Health Plans
- International Federation of Human Rights
- International Federation of Pedestrians
- International Federation of Pharmaceutical Manufacturers and
- International Federation of Red Cross and Red Crescent Societies
- International Federation on Ageing
- International Fibrodysplasia Ossificans Progressiva Association
- International Fire Marshals Association - National Fire Protection Association
- International Food Additives Council
- International Food Information Service
- International Food Policy Research Institute - Consultative Group for International Agricultural Research
- International Formula Council
- International Foundation for Ethical Research
- International Foundation for Functional Gastrointestinal
- International Foundation for Gender Education
- International Foundation for Optic Nerve Disease
- International Foundation of Employee Benefit Plans
- International Functional Electrical Stimulation Society
- International Gay and Lesbian Human Rights Commission
- International Glaciological Society
- International Graphoanalysis Society, Inc.
- International Guild of Professional Electrologists, Inc.
- International Healthy Cities Foundation
- International Hearing Society
- International Hospital Federation
- International Huntington Association
- International Hyperhidrosis Society
- International Ice Cream Association - International Dairy Foods Association
- International Ice Patrol - U.S. Coast Guard - U.S. Department of Homeland Security
- International Information System for the Agricultural Sciences - Food and Agriculture Organization of the United Nations
- International Institute for Bioenergetic Analysis
- International Institute for the Advancement of Medicine - Musculoskeletal Transplant Foundation
- International Institute of Ammonia Refrigeration
- International Institute of Refrigeration
- International Institute of Rhode Island
- International Interstitial Cystitis Patient Network Foundation
- International Iron and Steel Institute
- International Joint Commission - Government of the United States - Government of Canada
- International Joseph Diseases Foundation
- International Journal of Verbal Aggression
- International Lactation Consultant Association
- International Lead Zinc Research Organization, Inc.
- International League Against Epilepsy
- International Lesbian and Gay Association
- International Life Sciences Institute
- International Long QT Syndrome Registry
- International Medical and Dental Hypnotherapy Association
- International Medical Society of Paraplegia - Swiss Paraplegic Center
- International Medical Volunteers Association
- International Microwave Power Institute
- International Mosaic Down Syndrome Association
- International Multiple Sclerosis Support Foundation
- International Museum of Surgical Science - International College of Surgeons
- International Myeloma Foundation
- International Myotonic Dystrophy Organization
- International Narcotic Enforcement Officers Association, Inc.
- International Network of Ataxia Friends
- International Nuclear Information System - Department of Nuclear Energy - International Atomic Energy Agency
- International Nurses Society on Addictions
- International Occupational Safety and Health Information Centre - InFocus Programme on Safety and Health Work and the Environment - International Labour Organization
- International Ocean Institute
- International Oceanographic Foundation - Rosenstiel School of Marine and Atmospheric Science
- International Office For Water
- International Organization for Medical Physics - Radiology Department - University of Texas Health Sciences Center - University of Texas, San Antonio
- International Organization for Standardization
- International Osteoporosis Foundation
- International Paruresis Association
- International Patient Organization for Primary Immunodeficiencies
- International Pemphigus and Pemphigoids Foundation
- International Perimetric Society
- International Personnel Management Association for Human
- International Pharmaceutical Abstracts - Thomson Scientific Inc.
- International Planned Parenthood Federation
- International Planned Parenthood Federation Library - Regent's College
- International Premature Ovarian Failure Association
- International Primate Protection League
- International Progeria Registry
- International Programs Center - Population Division - U.S. Census Bureau - U.S. Department of Commerce
- International Psychogeriatric Association
- International Public Relations Association
- International RadioSurgery Association
- International Red Locust Control - Organization for Central and Southern Africa
- International Rescue Committee, Inc.
- International Research Group on Wood Protection
- International Rett Syndrome Association
- International Right of Way Association
- International Scleroderma Network
- International Scleroderma Network
- International Sculpture Center
- International Skeletal Dysplasia Registry - Cedars-Sinai Medical Center
- International Skeletal Dysplasia Registry - Medical Genetics Institute - Cedars-Sinai Medical Center
- International Sleep Products Association
- International Social Service
- International Society for Animal Rights
- International Society for Burn Injuries
- International Society for Clinical Laboratory Technology - American Association of Bioanalysts
- International Society for Digestive Surgery - Department of Surgery - Queen Mary Hospital
- International Society for Fluoride Research
- International Society for Heart and Lung Transplantation
- International Society for Magnetic Resonance in Medicine
- International Society for Mannosidosis and Related Diseases, Inc.
- International Society for Neuronal Regulation
- International Society for Optical Engineering
- International Society for Pharmacoeconomics and Outcomes Research
- International Society for Plant Pathology
- International Society for Quality in Health Care, Inc.
- International Society for Respiratory Protection
- International Society for Stereology
- International Society for Technology in Education
- International Society for Terrain-Vehicle Systems, Inc.
- International Society for the History of the Neurosciences
- International Society for the Study of Dissociation
- International Society for Traumatic Stress Studies
- International Society of Air Safety Investigators
- International Society of Arthroscopy, Knee Surgery and Orthopedic
- International Society of Biometeorology
- International Society of Explosives Engineers
- International Society of Fire Service Instructors
- International Society of Internal Medicine
- International Society of Microbial Ecology
- International Society of Pediatric Oncology
- International Society of Refractive Surgery - American Academy of Ophthamology
- International Society of Soil Science
- International Society on Metabolic Eye Disease
- International Society on Toxinology
- International Species Information System
- International Strabismological Association
- International Strategy for Disaster Reduction - United Nations
- International Swimming Hall of Fame, Inc.
- International Task Force on Anaesthesia Safety - Communicore
- International Tea Committee
- International Technology Institute - International Technology Foundation
- International Technology Law Association
- International Textile Center - College of Agriculture Sciences and Natural Resources - Texas Tech University
- International Trademark Association
- International Transactional Analysis Association
- International Trauma Care - Trauma Care International
- International Tsunami Information Centre - Intergovernmental Oceanographic Commission - Educational, Scientific and Cultural Organization - United Nations
- International Union Against Cancer
- International Union Against Tuberculosis and Lung Disease
- International Union for Conservation of Nature and Natural
- International Union for the Protection of New Varieties of Plants
- International Union for the Scientific Study of Population
- International Union of Crystallography - International Council for Science
- International Union of Forestry Research Organizations
- International Union of Physiological Sciences
- International Union of Pure and Applied Chemistry
- International Vaccine Institute
- International Ventilator Users Network - Post-Polio Health International
- International WAGR Syndrome Association
- International Waldenstrom's Macroglobulinemia Foundation
- International Water Resources Program - Water Resources Division - U.S. Geological Survey
- International Whaling Commission
- International Wheelchair and Amputee Sports Foundation
- International Wheelchair Aviators
- International Women's Health Coalition
- International Women's Media Foundation
- International Women's Tribune Centre
- Internet Dermatology Society
- Internet Society
- Internet Support Group for MoyaMoya Families
- InterPsych - Center for Psychotherapeutic Studies - University of Sheffield
- Intersex Society of North America
- Intersocietal Commission for the Accreditation of
- Intersociety Council on Pathology Information, Inc.
- Interstate Commission on the Potomac River Basin
- Interstate Environmental Commission - New York, New Jersey, and Connecticut State Governments
- Interstate Natural Gas Association of America
- Interstate Oil and Gas Compact Commission
- Interstitial Cystitis Association
- Inter-University Program for Latino Research
- Intestinal Multiple Polyposis and Colorectal Cancer Foundation
- Intracranial Hypertension Research Foundation
- Intramural AIDS and HIV Related Research Program - National Institute of Allergy and Infectious Diseases - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- Intramural Research Program - National Institute of Diabetes and Digestive and Kidney Diseases - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- Intramural Research Program - National Institute on Drug Abuse - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- Inventors Workshop International Education Foundation
- Invertebrate Zoology Section - Department of Systemic Biology - National Museum of Natural History - Smithsonian Institution
- Investigational Drug Program - Advanced Therapeutics Department - BC Cancer Research Centre - British Columbia Cancer Agency
- Investigations Service - U.S. Office of Personnel Management
- Investigator Award - Prevent Blindness America
- Inyo National Forest - Forest Service - U.S. Department of Agriculture
- Iowa Academy of Science - American Association for the Advancement of Science - University of Northern Iowa
- Iowa Agriculture and Home Economics Experiment Station - Iowa State University
- Iowa Department of Agriculture and Land Stewardship
- Iowa Department of Elder Affairs - State of Iowa
- Iowa Department of Natural Resources - Iowa State Government
- Iowa Department of Public Health - State of Iowa
- Iowa Drug Information Service - Divsion of Drug Information Service - College of Pharmacy - University of Iowa
- Iowa Geriatric Education Center - Geriatric Education - University of Iowa
- Iowa Insurance Division
- Iowa Ornithologists' Union
- Iowa State Board of Pharmacy Examiners
- Iowa State Water Resources Research Institute - Iowa State University
- Ipas
- IPRO
- Ira Nelson Horticultural Center - College of Applied Life Sciences - University of Lousiana at Lafayette
- Iron Disorders Institute
- Iron Overload Diseases Association, Inc.
- Irrigation Association
- Irving Center for Clinical Research - Columbia-Presbyterian Medical Center - Columbia University
- Islamic Studies Library - Institute of Islamic Studies - McGill University
- IsoDicentric 15 Exchange, Advocacy, and Support
- Israel Institute for Biological Research - Israel Prime Minister's Office
- Israel Oceanographic and Limnological Research Ltd. - Earth Sciences Research Administration - Ministry of National Infrastructures
- Israel Society for Medical and Biological Engineering - International Federation for Medical and Biological Engineering
- IT Accessibility and Workforce Division - Office of Governmentwide Policy - U.S. General Services Administration
- Italian Cochrane Center - Cochrane Collaboration
- ITP Foundation
- IUBio Archive - Genome Informatics Lab - Biology Department - Indiana University
- Izaak Walton League of America