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- MAAP Services for the Autism and Asperger Syndrome - MAAP Services, Inc.
- Macro International, Inc. - Opinion Research Corporation
- Macular Degeneration Foundation, Inc.
- Macular Degeneration Partnership - Discovery Eye Foundation
- Macular Degeneration Support, Inc.
- Madisons Foundation
- MAGIC Foundation
- Magic Johnson Foundation
- Maine Agricultural and Forest Experiment Station - University of Maine
- Maine Area Health Education Center Network - Division of Community Programs - College of Osteopathic Medicine - University of New England
- Maine Audubon
- Maine Coast Heritage Trust
- Maine Department of Agriculture, Food and Rural Resources
- Maine Department of Conservation
- Maine Department of Inland Fisheries and Wildlife - Maine State Government
- Maine Health Data Organization - Maine State Government
- Maine Medical Center Library - Maine Medical Center
- Maine Office of Substance Abuse - Department of Health and Human Services - Maine State Government
- Maine Public Utilities Commission
- Maine Rural Health Research Center - Edmund S. Muskie School of Public Service - University of Southern Maine
- Maine State Archives - Department of the Secretary of State - Maine State Government
- Maine State Library - Maine State Government
- Make-A-Wish Foundation
- Make Early Diagnosis to Prevent Early Deaths
- Make Today Count - Saint John's Cancer Center - Saint John's Health System
- Malaria Foundation International
- Malaysian Rubber Board
- Malcolm Wiener Center for Social Policy - John F. Kennedy School of Government - Harvard University
- Malignant Hyperthermia Association of the United States
- Mallet Chemistry Library - University of Texas at Austin
- Mamiya Medical Heritage Center - Hawaii Medical Library
- Managed Care Information Center
- Management Sciences for Health
- Manitoba Center for Health Policy - Department of Community Health Sciences - Faculty of Medicine - University of Manitoba
- MAP International
- Maple Syrup Urine Disease Family Support Group
- Marian Koshland Bioscience and Natural Resources Library - University of California at Berkeley
- Marijuana Anonymous World Services
- Marimed Foundation - Hawaii Youth Services Network
- Marine Biomedicine and Environmental Sciences Center - Medical University of South Carolina
- Marine Laboratory - Nicholas School of the Environment and Earth Sciences - Duke University
- Marine Nature Study Area - Department of Conservation and Waterways - Town of Hempstead
- Marine Resources Division - South Carolina Department of Natural Resources
- Marine Safety and Environmental Protection - U.S. Coast Guard - U.S. Department of Homeland Security
- Marine Science Center - College of Arts and Sciences - Northeastern University
- Marine Science Institute
- Marine Science Institute - University of California, Santa Barbara
- Marinesco-Sjogren Syndrome Support Group
- Marine Technology Society
- Marine Vertebrates Collection - Scripps Institution of Oceanography - University of California, San Diego
- Mario Negri Institute for Pharmacological Research
- Marion Institute
- Marketing and Development Division - West Virginia Department of Agriculture
- Mark Twain School - Montgomery County Public Schools - Montgomery County Government - Maryland State Government
- Martin Luther King Memorial Library - District of Columbia Public Library
- Mary and Edward Norton Library of Ophthalmology - Anne Bates Leach Eye Hospital - Bascom Palmer Eye Institute - Miller School of Medicine - University of Miami
- Mary-Helen Mautner Project for Lesbians with Cancer
- Maryjane Rees Language, Speech and Hearing Center - Department of Speech Pathology and Audiology - California State University, Sacramento
- Maryland Agricultural Experiment Station - College of Agriculture and Natural Resources - University of Maryland
- Maryland Association of Soil Conservation Districts, Inc.
- Maryland Commission on Kidney Disease - Department of Health and Mental Hygiene - Maryland State Government
- Maryland Conservation Council
- Maryland Cooperative Extension - College of Agriculture and Natural Resources - University of Maryland
- Maryland Department of Aging - Maryland State Goverment
- Maryland Department of Agriculture
- Maryland Department of Health and Mental Hygiene - Maryland State Government
- Maryland Department of Juvenile Services - State of Maryland
- Maryland Department of Transportation
- Maryland Disability Law Center
- Maryland Emergency Management Agency
- Maryland Fire and Rescue Institute - University of Maryland
- Maryland Health Care Commission - Maryland Department of Health and Mental Hygiene
- Maryland Healthcare Education Institute - Maryland Hospital Association
- Maryland Health Resources Planning Commission - Maryland State Government
- Maryland Hospital Association
- Maryland Institute for Emergency Medical Services System
- Maryland Insurance Administration
- Maryland Mentoring Partnership
- Maryland National Guard
- Maryland Office of Homeland Security
- Maryland Office of Primary Care and Rural Health - Family Health Administration - Maryland Department of Health and Mental Hygiene
- Maryland Office of the State Fire Marshal
- Maryland Poison Center - University of Maryland School of Pharmacy - University of Maryland Baltimore
- Maryland Public Interest Research Group
- Maryland Public Service Commission (Utilities)
- Maryland Science Center
- Maryland State Department of Education - State of Maryland
- Maryland Water Resources Research Center - Department of Civil and Environmental Engineering - University of Maryland
- Masonic Medical Research Laboratory
- Massachusetts Aeronautics Commission - Transportation Network - Executive Office of Transportation and Construction
- Massachusetts Agricultural Experiment Station - College of Natural Resources and the Environment - University of Massachusetts
- Massachusetts Alliance on Teen Pregnancy
- Massachusetts Association of Conservation Commissions, Inc.
- Massachusetts Audubon Society
- Massachusetts Children's Trust Fund
- Massachusetts Department of Agricultural Resources
- Massachusetts Department of Public Health - Commonwealth of Massachusetts
- Massachusetts Emergency Management Agency
- Massachusetts Eye and Ear Infirmary - Howe Library
- Massachusetts Health Data Consortium
- Massachusetts Medical Society
- Massachusetts State Office of Rural Health - Massachusetts Department of Public Health
- Massachussetts Area Health Education Center Network - Medical School - University of Massachusetts
- Master in Public Health Program - College of Education and Health Services - Benedictine University
- Master of Health Administration Program - School of Health Sciences - Ohio University
- Master of Public Administration - Division of Public and Nonprofit Administration - School of Urban Affairs and Public Policy - University of Memphis
- Master of Public Administration Program - Maxine Goodman Levine College of Urban Affairs - Cleveland State University
- Master of Public Health - Health Management and Policy - School of Public Health - University of Michigan
- Master of Public Health Program - Department of Community Medicine and Health Care - University of Connecticut
- Master of Public Health Program - Department of Health and Nutrition Sciences - Brooklyn College
- Master of Public Health Program - Division of Sociomedical Sciences - Columbia University
- Master of Public Health Program - Eastern Virginia Medical School - Old Dominion University
- Master of Public Health Program - School of Medicine - Mercer University
- Master of Public Health Program - School of Public Health - Harvard University
- Master of Science in Epidemiology and Preventive Medicine - Department of Epidemiology and Preventive Medicine - School of Medicine - University of Maryland
- Master of Science in Health Informatics - Health Informatics Program - School of Health Professions - University of Alabama at Birmingham
- Master of Science Program in Health Policy and Management - Department of Health Policy and Management - School of Public Health - Harvard University
- Master of Science Program in Health Policy, Management and - School of Public Health - University at Albany - State University of New York
- Masters Program in Health Care Quality Improvement - Department of General Practice and Primary Health Care - University of Helsinki
- Master's Program in Public Health Nutrition - Department of Nutrition - College of Education, Health, and Human Sciences - University of Tennessee
- Mastocytosis Society, Inc.
- Material Safety Data Sheet Database - Mallinckrodt Laboratory Chemicals - Mallinckrodt Baker, Inc.
- Maternal and Child Health Bureau - Health Resources and Services Administration - U.S. Department of Health and Human Services
- Maternal and Child Health Policy Research Center
- Maternal and Child Health Program - School of Public Health - New York Medical College
- Maternal, Child and Adolescent Health Branch - Family Health Division - Department of Health Services - California State Government
- Mathematical Association of America
- Mathew Forbes Romer Foundation, Inc
- Matson Museum of Anthropology - Department of Anthropology - Pennsylvania State University
- Matt Cole Memorial Library - Center for Environmental Studies - Williams College
- Mature Market Resource Center
- Maui Research and Technology Center - High Technology Development Corporation
- Max McGraw Wildlife Foundation
- Maxwell Museum of Anthropology - University of New Mexico
- Mayo Clinic
- Mayo Foundation History of Medicine Library
- MBLWHOI Library - Woods Hole Oceanographic Institution
- McArdle Laboratory for Cancer Research - Department of Oncology - University of Wisconsin-Madison Medical School
- McGill Faculty of Law
- McKnight Foundation
- McLaughlin Research Institute
- McLean Library - Pennsylvania Horticulture Society
- McManus Health Policy, Inc.
- MCNC - North Carolina General Assembly
- MCP � Hahnemann Pulmonary Associates - College of Medicine - Drexel University
- MCP Hahnemann University - Archives and Special Collections
- M.D. Anderson Cancer Center - University of Texas
- MdDS Balance Disorder Foundation - National Heritage Foundation
- Meals on Wheels Association of America
- MEASURE Evaluation Project - United States Agency for International Development
- Meat and Poultry Hotline - Food Safety and Inspection Service - U.S. Department of Agriculture
- Mechanical and Transportation Engineering Abstracts - Cambridge Scientific Abstracts
- Mechanical Metrology Program - Manufacturing Engineering Laboratory - National Institute of Standards and Technology - U.S. Department of Commerce
- Mechanicville Area Community Services Center - City of Mechanicville Government
- MedChi, The Maryland State Medical Society - American Medical Association
- MedChi, the Maryland State Medical Society - History of Medicine Collection
- Med Help International
- Media Library - State University of New York
- Medical and Health Research Association of New York City, Inc.
- Medical and Research Library - Texas Department of State Health Services - Texas State Government
- Medical Center Library - Chandler Medical Center - University of Kentucky
- Medical College of Quebec
- Medical Devices Canada
- MedicAlert Foundation International
- Medical Eye and Dental International Care Organization, Inc.
- Medical Federation of Interior
- Medical Genetics - Cleveland Clinic
- Medical Group Management Association
- Medical Institute for Sexual Health
- Medical Library Association
- Medical Library Center of New York
- Medical Library - Lovelace Respiratory Research Institute
- Medical Library - New York College of Podiatric Medicine
- Medical Library - NYU Downtown Hospital
- Medical Outcomes Trust - Health Assessment Lab
- Medical Records Institute
- Medical Research Council
- Medical Research Council Human Genetics Unit - Western General Hospital
- Medical Research Council of South Africa
- Medical Scholars Program - University of Illinois at Chicago College of Medicine - University of Illinois at Urbana-Champaign Graduate College
- Medical Technology and Practice Patterns Institute, Inc.
- Medical Technology Management Institute, Inc.
- Medical Technology Section - Department of the Interior - Federal Social Insurance Office, Switzerland
- Medical University of South Carolina
- Medical University of South Carolina Library - Medical University of South Carolina
- Medicare Hotline - Centers for Medicare and Medicaid Services - U.S. Department of Health and Human Services
- Medicare Payment Advisory Commission
- Medicare Rights Center
- Medicines and Healthcare products Regulatory Agency
- MediConf - Fairbase Database Ltd.
- Medizinhistorisches Institut und Museum - Universitat Zurich - Bibliothek
- MEDLINE/PubMed - National Library of Medicine - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- MedWatch - Center for Drug Education and Research - U.S. Food and Drug Administration
- Meeting/Conf - Communication Division - CEA
- Meharry Medical College Library - Meharry Medical College
- Meiklejohn Civil Liberties Institute
- Melanoma Research Foundation
- Melorheostosis Association
- Melpomene Institute for Women's Health Research
- Melville J. Herskovits Library of African Studies - Northwestern University
- Memorial Library - University of Wisconsin-Madison
- Memorial Sloan-Kettering Cancer Center
- Men Against Breast Cancer
- Mended Hearts, Inc.
- Meniere's Australia, Inc.
- Meniere's Network - EAR Foundation
- Meningitis Foundation of America
- Meningitis Research Foundation
- Men's Rights, Inc.
- Mental Health and Substance Abuse Hotline - Highland Ridge Hospital
- Mental Health Association in Greater San Antonio - Mental Health Association
- Mental Health Association in Tompkins County - Mental Health Association
- Mental Health Association in Ulster County, Inc. - National Mental Health Association
- Mental Health Association of Greater Dallas - National Mental Health Association
- Mental Health Association of Niagara County, Inc.
- Mental Health Association of Reading and Berks County
- Mental Health Association of Southwest Ohio, Inc. - National Mental Health Association
- Mental Health Association of the Heartland
- Mental Health Association of Yolo County
- Mental Health Association Sacramento Chapter - Mental Health Association
- Mental Health Foundation
- Mental Health in Corrections Consortium - Forest Institute of Professional Psychology
- Mental Help Net - CenterSite, LLC
- Mental Hygiene Administration - Maryland Department of Health and Mental Hygiene
- Mental Research Institute
- Mental Retardation Research Center - University of California Los Angeles
- Mental Sciences Institute - Department of Psychiatry and Behavioral Sciences - Medical School - University of Texas-Houston
- Mercer Arboretum and Botanic Gardens - Mercer Society
- Merck Index Online - Merck and Company, Inc.
- Mercury Exposure
- Mercy Health Services
- Mercy Medical Airlift
- Merkel Cell Carcinoma - Seattle Cancer Care Alliance - Skin Oncology Clinic - University of Washington
- Merritt Island National Wildlife Refuge - National Aeronautics and Space Administration - National Wildlife Refuges - Fish and Wildlife Service - U.S. Department of the Interior
- Mesa County Partners
- Mesa Library - National Center for Atmospheric Research Library - National Center for Atmospheric Research
- Mesothelioma Applied Research Foundation, Inc.
- Metabolic Research Unit - Division of Endocrinology and Metabolism - School of Medicine - University of California, San Francisco
- Metatropic Dysplasia Dwarf Registry
- Methodist DeBakey Heart Center - Methodist Hospital - Texas Medical Center
- Methods,Time, and Measurement Association for Standards and - International MTM Dictorate
- MetLife Foundation - MetLife
- Metropolitan Community Churches
- Metropolitan Water District of Southern California
- Metro TeenAIDS
- Mexicans United by Health Against AIDS
- Meyer Center for Developmental Pediatrics - Texas Children's Hospital
- MHE and Me - MHE Coalition
- MHSc/MSc/PhD in Health Services Research Program - Department of Health Care and Epidemiology - University of British Columbia
- Miami Area Geriatric Education Center - University of Miami
- Michael E. DeBakey International Surgical Society
- Michael Fund: International Foundation for Genetics Research
- Michael J. Fox Foundation for Parkinson's Research
- Michigan Aeronautics Commission - Michigan Bureau of Aeronautics - Michigan Department of Transportation
- Michigan Association for Computer Users in Learning
- Michigan Audubon Society
- Michigan Career and Technical Institute - Career Education and Workforce Programs - Department of Labor Education and Growth - State of Michigan
- Michigan Department of Community Health - State of Michigan
- Michigan Department of Corrections - Michigan State Government
- Michigan Department of Human Services - Department of Education - State of Michigan
- Michigan Diabetes Research and Training Center - Medical School - University of Michigan
- Michigan Division for Vital Records and Health Statistics - Michigan Department of Community Health - Michigan State Government
- Michigan Memorial Phoenix Energy Institute - Phoenix Memorial Laboratory - University of Michigan
- Michigan Molecular Institute
- Michigan Natural Areas Council
- Michigan Nurses Association
- Michigan Pharmacists Association
- Michigan Sea Grant - University of Michigan
- Michigan State Office of Rural Health - Michigan Center for Rural Health - Michigan State University
- Michigan State University-Department of Energy Plant Research - Michigan State University
- Michigan United Conservation Clubs
- Microbeam Analysis Society
- MicrobeLibrary - American Society for Microbiology
- Microbiological Resources Center
- Microform Reading Room - Library of Congress
- Microscopy Society of America
- Mid-America Association of Educational Opportunity Program - Purdue University Calumet
- Mid-Atlantic Network of Youth and Family Services
- Mid-Atlantic Regional Center for Environmental Information - U.S. Environmental Protection Agency
- Mid-Atlantic Regional Human Genetics Network
- Midcontinental Region Medical Library - National Network of Libraries of Medicine - National Library of Medicine - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- Middle Atlantic Region - National Network of Libraries of Medicine - National Library of Medicine - National Institutes of Health - Public Health Service - U.S. Department of Health and Human Services
- Middle East Institute
- Middle East Research and Information Project
- Middle East Studies Center - Portland State University
- Midlands Area Support Group Network - Lexington Medical Center
- Mid-Missouri Area Health Education Center
- Midwest Dairy Association - National Dairy Council
- Midwestern Geriatric Education Center
- Midwestern University Libraries - Midwestern University
- Midwest Plan Service - Iowa State University
- Midwest Research Institute
- Midwives Alliance of North America
- Mike Monroney Aeronautical Center - Federal Aviation Administration - U.S. Department of Transportation
- Military HOMEFRONT - Office of the Deputy Under Secretary of Defense for Military - Office of the Under Secretary of Defense for Personnel and - U.S. Department of Defense
- Military Law Task Force - National Lawyers Guild
- Milk Industry Foundation - International Dairy Foods Association
- Milner Library - University Libraries - Illinois State University
- Milwaukee County Cooperative Extension - University of Wisconsin-Extension
- Mine Safety and Health Administration - Office of Information and Public Affairs - U.S. Department of Labor
- Ministry for HIV/AIDS - Office for Health and Wholeness Advocacy - United Church of Christ
- Ministry of Agriculture and Rural Development - Government of Israel
- Ministry of Agriculture, Food, Fishing and Rural Businesses - Government of France
- Ministry of Environment - Government of British Columbia
- Ministry of Health - Federal Ministry of Health and Social Security
- Ministry of Health - Goverment of Chile
- Minneapolis Medical Research Foundation - Hennepin County Medical Center
- Minneapolis Public Library - Minneapolis State Government
- Minnesota Academy of Otolaryngology-Head and Neck Surgery - Minnesota Medical Association
- Minnesota Agricultural Experiment Station - University of Minnesota
- Minnesota Air National Guard
- Minnesota Area Geriatric Education Center - Center on Aging - School of Public Health - University of Minnesota
- Minnesota Board of Water and Soil Resources - State of Minnesota
- Minnesota Conservation Federation - National Wildlife Federation
- Minnesota Department of Agriculture
- Minnesota Department of Health
- Minnesota Department of Human Rights - Minnesota State Government
- Minnesota Department of Human Services
- Minnesota Department of Transportation
- Minnesota Landscape Arboretum - Department of Horticultural Sciences - College of Agricultural, Food, and Environmental Sciences - University of Minnesota
- Minnesota Mycological Society
- Minnesota National Guard
- Minnesota Office of the Attorney General
- Minnesota Organization on Adolescent Pregnancy, Prevention and
- Minnesota Psychological Association
- Minnesota Public Interest Research Group
- Minnesota Safety Council - National Safety Council
- Minnesota State Board of Animal Health - Minnesota State Government
- Minority Aging Research Institute - Department of Applied Gerontology - University of North Texas
- Miracle Flights for Kids
- Mississippi Agricultural and Forestry Experiment Station - Mississippi State University
- Mississippi River Citizen Commission - Upper Mississippi Basin Stakeholder Network
- Mississippi Soil and Water Conservation Commission
- Mississippi State Medical Association
- Mississippi State Office of Rural Health - Department of Health - Mississippi State Government
- Mississippi State Tax Commission
- Missouri Agricultural Experiment Station - College of Agriculture, Food and Natural Resources - University of Missouri at Columbia
- Missouri Air Conservation Commission - Division of Environmental Quality - Missouri Department of Natural Resources - Missouri State Government
- Missouri Area Health Education Center
- Missouri Botanical Garden - Missouri State Government
- Missouri Center for the Book - Missouri State Library
- Missouri Coalition for the Environment
- Missouri Commission on Human Rights - Department of Labor and Industrial Relations - State of Missouri
- Missouri Department of Conservation - Missouri State Government
- Missouri Department of Health and Senior Services
- Missouri Department of Natural Resources
- Missouri Department of Public Safety - Missouri State Government
- Missouri Geriatric Education Center - Saint Louis University School of Medicine
- Missouri Head Injury Advisory Council - Division of General Services - Office of Administration - Missouri State Government
- Missouri Institute of Mental Health Library - School of Medicine - University of Missouri-Columbia
- Missouri Lions Eye Research Foundation
- Missouri Prairie Foundation
- Missouri Teratogen Information Service - Children's Hospital - University of Missouri-Columbia
- Mitochondria Research Society
- Mobility Opportunities Via Education International
- Mobilization Against AIDS
- Moderation Management Network, Inc.
- Moebius Syndrome Foundation
- Moebius Syndrome Support Network
- Molecular and Behavioral Neuroscience Institute - University of Michigan Medical School
- Molecular and Environmental Toxicology Center - University of Wisconsin-Madison
- Molecular, Cellular and Developmental Biology Group - Department of Molecular Biosciences - University of Kansas
- Molecular Genetics Laboratory - Department of Human Genetics - University of Pittsburgh
- Molecular Spectra Databases - Physics Laboratory, Molecular Physics Division - National Institute of Standards and Technology
- Molecular Virology Lab - Division of Laboratory Medicine - School of Medicine - Washington University in St. Louis
- Monell Chemical Senses Center
- Montana Cooperative Wildlife Research Unit - University of Montana
- Montana Department of Agriculture
- Montana Department of Public Health and Human Services - State of Montana
- Montana Land Reliance
- Montana Office of Rural Health - Montana Area Health Education Center - Montana State Government
- Montana State Library
- Montezuma Castle National Monument - National Park Service - U.S. Department of the Interior
- Montreal Neurological Institute and Hospital - McGill University
- Mood Disorders Support Group of New York City
- Moores Cancer Center - Medical Center - University of Calfornia, San Diego
- Moosehorn National Wildlife Refuge - Fish and Wildlife Service - U.S. Department of the Interior
- Morbidity and Mortality Weekly Report - Epidemiology Program Office - Centers for Disease Control and Prevention - Public Health Service - U.S. Department of Health and Human Services
- More Light Presbyterians
- Morgan Arboretum - Department of Natural Resource Sciences - Faculty of Agricultural and Environmental Sciences - McGill University
- Morris Animal Foundation
- Morris Arboretum Library - Morris Arboretum - University of Pennsylvania
- Morton Arboretum
- Mossbauer Effect Data Center - University of North Carolina at Asheville
- Moss Landing Marine Laboratories
- Mote Marine Laboratory
- Mother, Child, and Adolescent HIV Program - National Pediatric AIDS Clinical Trials Unit - Medical Center-Hillcrest - School of Medicine - University of California, San Diego
- Motherisk Program - Hospital for Sick Children - University of Toronto
- MotherNet America - INMED
- Mothers Against Drunk Driving
- Mothers from Hell 2
- Mothers of AIDS Patients
- Mothers of Supertwins
- Mothers' Voices
- Mothers Without Custody
- Motion Picture, Sound, and Video Research Room - U.S. National Archives and Records Administration
- Motor and Equipment Manufacturers Association
- Motorcycle Industry Council
- Motorcycle Safety Foundation
- Motor Neurone Disease Association
- Mountain State Geriatric Education Center - Center on Aging - West Virginia University
- Mountain States Genetics Foundation
- Mountain States Group
- Mountain Top Arboretum
- Mount Cuba Astronomical Observatory, Inc.
- Mountjoy Research Center - Durham University
- Mount Sinai AIDS Education Project - Faith, Hope and Love Ministries - Mount Sinai Baptist Church
- Mount Washington Observatory
- Mouse Mutant Resource - Jackson Laboratory
- Moving Forward
- Mowat-Wilson Support Group
- MPH Epidemiology Program - School of Public Health and Health Services - George Washington University
- MPH in Community Health Education - Department of Public and Community Health - College of Health and Human Performance - University of Maryland
- MPH Program - Bowling Green State University - Medical College of Ohio - College of Health and Human Services - University of Toledo
- MPH Program in Public Health Practice - School of Public Health and Health Sciences - University of Massachusetts, Amherst
- MPH Program - Public Health Department - College of Public Affairs and Administration - University of Illinois at Springfield
- MSc/PhD Program - Department of Health Administration - University of Toronto
- Muck Crops Branch - Ohio Agricultural Research and Development Center - Ohio State University
- Mucolipidosis Type IV Foundation
- Multidisciplinary Pain Center - University of Washington Medical Center - University of Washington
- Multiple Chemical Sensitivity Referral and Resources, Inc.
- Multiple Hereditary Exostoses Coalition
- Multiple Hereditary Exostoses Family Support Group - Multiple Hereditary Exostoses Research Foundation
- Multiple Myeloma Research Foundation
- Multiple Sclerosis Association of America
- Multiple Sclerosis Foundation
- Multiple Sclerosis International Federation
- Multiple Sclerosis Society of Canada
- MUMS National Parent-to-Parent Network - Mothers United for Moral Support, Inc.
- Municipal Archives - Department of Records and Information Services - New York City Government
- Municipal Library - Library, Records Management, and Bookstore - City and County of Honolulu
- Municipal Reference Service - National League of Cities
- Muscular Dystrophy Association
- Muscular Dystrophy Association of Canada
- Muscular Dystrophy Association-USA
- Muscular Dystrophy Australia
- Museum Computer Network
- Museum of Anthropology - University of Michigan
- Museum of Anthropology - University of Missouri at Columbia
- Museum of Comparative Zoology - Harvard University
- Museum of Natural Science
- Museum of Paleontology - University of Michigan
- Museum of Science, Boston
- Museum of Southwestern Biology - Department of Biology - University of New Mexico
- Museum of the Cherokee Indian
- Museum of Vertebrate Zoology - University of California, Berkeley
- Museum of Zoology - University of Michigan
- Museum Studies Reference Library - Smithsonian Institution Libraries - Smithisonian Institution
- Mutual Support Groups in Bloomsburg - Mental Health Association of the Central Susquehanna Valley - National Mental Health Association
- Myasthenia Gravis Association
- Myasthenia Gravis Foundation of America, Inc.
- Mycological Herbarium - Department of Plant Pathology - Washington State University
- Myelin Project
- Myositis Association
- Myotonic Dystrophy Foundation
- Myotubular Myopathy Resource Group