| M A I K Nauka | M E Sharpe, Inc |
| M/C — Media and Culture | MA Healthcare Ltd |
| Mac Publishing | Macalester College |
| Macedonian Academy of Sciences and Arts | MacEwan Institute for Research on Family and Youth |
| Macmillan Magazines Ltd | Macquarie Graduate School of Management |
| Macquarie University | Macrothink Institute |
| Madagascar Wildlife Conservation | Madison Magazine, Inc |
| Madras Agricultural Students Union | Maejo University |
| Magazine Channel, Inc | Magna Publications |
| Magnetic Society of Japan | Magnolia Press |
| Maharishi Markandeshwar University | Mahatma Gandhi International Hindi University |
| Mainstream Weekly | Maison des Sciences de l'Homme |
| Makati Business Club | Makerere University |
| makingChoices.be bvba | Malacological Society of London |
| Malaysian Analytical Sciences Society | Malaysian Palm Oil Board |
| Mammal Society | Mammalogical Society of Japan |
| Management Audit Ltd | Management Centre International Limited |
| Management Council of the International Journal of Diabetes | Manchester Metropolitan University |
| Manchester University Press | Maney Publishing |
| Marburg Journal of Religion | Marcel Dekker, Inc |
| Marg Publications | Marine Acoustics Society of Japan |
| Marine Biological Association | Marine Biological Association of India |
| Marine Biological Laboratory | Marine Ornithology |
| Marine Technology Society | Mark Allen Group |
| Mark Allen Publishing Ltd | Market Research Society |
| Marketing Science Center | Markkula Center for Applied Ethics |
| Marotz, Inc. | Marquette Journals |
| Marquette University Law School | Marrder Omnimedia |
| Mars Informatics Inc. | Marshfield Clinic Research Foundation |
| Marsland Press | Martin Dunitz Ltd |
| Maruzen Company Ltd | Marxist Literary Group |
| Mary Ann Liebert, Inc | Mary Immaculate College |
| Masaryk University | MASAUM Network for High-Quality Publications |
| Mashhad University of Medical Sciences | Mason Contractors Association of America |
| Mass High Tech | Mass Spectrometry Society of Japan |
| Massachusetts General Hospital | Massachusetts Institute of Technology |
| Massachusetts Medical Society | Massage Magazine |
| Massage Therapy Foundation | Massey University |
| Master Brewers Association of the Americas | Master Publishing Group |
| Materials Information Society | Materials Research Society |
| Mathematica Josephina, Inc. | Mathematica Journal |
| Mathematical Association of America | Mathematical Association of Ghana |
| Mathematical Association of Thailand | Mathematical Institute |
| Mathematical Institute of the Slovak Academy of Sciences | Mathematical Institute, Belgrade |
| Mathematical Institute, Tohoku University | Mathematical Research Letters |
| Mathematical Sciences Publishers | Mathematical Society of Japan |
| Mathematical Society of Serbia | Mathematics and Technology,LLC |
| Mathematics Education Research Group of Australasia | Mathematics Education Student Association |
| Mathrubhumi | Matrice Technology |
| Matsushita Center for Electronic Learning | Mattioli |
| Max Planck Institute for Demographic Research | Max Planck Institute for Gravitational Physics (Albert Einstein Institute) |
| Maxwell Science Publication | Mazandaran University of Medical Sciences |
| MBL Communications, Inc | MC Publishing Company |
| McFarland | McFarland Publishers |
| McGill Journal of Education | McGill Journal of Medicine |
| McGill Law Journal | McGill School of Nursing |
| McGill University | Mcgraw Hill Inc |
| McKinsey & Company, Inc | McMahon Publishing Group |
| McMaster Journal of Theology and Ministry | McMaster University |
| Meanjin Company Ltd | medi+WORLD International |
| Media Department | Media General Operations Inc. |
| Media Tenor South Africa | Mediatec Publishing Inc |
| Medical & Rehabilitation Practitioners Association | Medical and Dental Consultants Association of Nigeria |
| Medical and Pharmaceutical Society for Wakan-Yaku | Medical Association of Nippon Medical School |
| Medical Association of Thailand | Medical Association of Zenica-Doboj Canton |
| Medical Channel Publishing Network | Medical Computing Today |
| Medical Economics Company | Medical Education Cooperation With Cuba |
| Medical Forum International | Medical Journal Armed Forces India |
| Medical Letter, Inc | Medical Library Association |
| Medical Rehabilitation Therapists Board of Nigeria | Medical Research Council of South Africa |
| Medical Science International | Medical Science International Co Ltd |
| Medical Science International Publishing Co., Ltd | Medical Science Journals Ltd |
| Medical University of Lublin | Medical World Communications |
| Medicina Sportiva | Medicinal and Aromatic Plants Association of India |
| Medicinal Food News | Medicine and Health Promotion Institute |
| Medicine Publishing Company | Medicines and Healthcare Products Regulatory Agency |
| Medicom (Uk) Ltd | Medicus Mundi Switzerland |
| Medieval Academy of America | Medieval Feminist Forum |
| MediMedia | MediMedia USA, Inc. |
| MediPOEIA Publication | Mediterranean Council for Burns and Fire Disasters |
| Mediworld Publications | Medknow Publications |
| Medpharm Publications (Pty) Ltd | Medquest Communications LLC |
| MedReviews, LLC | Medscape Inc |
| Medtext, Inc | Medwell Online |
| Meister Media Worldwide | Melbourne Institute of Applied Economic and Social Research |
| Melbourne University Publishing Ltd | Melcrum Publishing |
| MELUS: The Society for the Study of the Multi-Ethnic Literature of the United States | Melville Society |
| Memorial University of Newfoundland | Men's Studies Press |
| Mena for Dental Services | Mencap |
| Meniscus Limited | Menninger |
| Mennonite Central Committee | Mental Health Infosource |
| Mental Help Net | Mercer University Walter F. George School of Law |
| Merchant Media Pvt. Ltd | Meredith Corporation |
| Merlien Institute | Merlien Science Network |
| Merlin Open Systems | Merlin Press Ltd |
| Metaichmio Publications | Metal Bulletin Plc |
| Meteorological Society of Japan | Metro Times, Inc |
| MetroMagazine LLC | Metromedia R&R |
| Metropolitan University Prague | Metropolitian Opera Guild, Inc |
| Mexician Association of Hepatology | Miami Children Hospital |
| Miami University | Michigan Council for the Social Studies |
| Michigan Library Association | Michigan Municipal League |
| Michigan State University | Michigan State University Press |
| Michigan Telecommunications and Technology Law Review | Michigan Virtual University |
| Microbiological Society of Korea | Microdesign Resources |
| Micromachine Center | Micropaleontology Press |
| Microsoft Corporation | Mid Sweden University |
| Mid-American Studies Association | Mid-Continent Regional Science Association |
| Middle East Economic Survey | Middle East Fertility Society |
| Middle East Forum | Middle East Institute |
| Middle East International | Middle East Policy Council |
| Middle East Review of International Affairs | Middle East Technical University |
| Middle East Technical University Faculty of Administrative Scicences and Economics | Midrange Computing |
| Midwest Political Science Association | Midwest Sociological Society |
| Migration Dialogue | Migration Letters |
| Milbank Memorial Fund | Military Medical Academy |
| Military Operations Research Society | Military Parade Ltd |
| Milken Institute | Millennium |
| Mineralogical Association of Canada | Mineralogical Society |
| Mineralogical Society of America | Mineralogical Society of Japan |
| Mineralogical Society of Poland | Minerals Metals & Materials Society |
| Mining Media | Ministry of Agriculture and Cooperatives |
| Ministry of Industry and Trade | Ministry of Information & Broadcasting |
| Ministry of Social Development | Minnesota Law Review |
| Minnesota Medical Association | Minnesota Pollution Control Agency |
| Minnesota State Bar Association | Minnesota Technology, Inc. |
| Miranda House | MIS Quarterly |
| Missouri Bar | MIT Press |
| Mitsubishi Heavy Industries | Modern Dentistry Media CC |
| Modern Humanities Research Association | Modern Language Association of America |
| Modern Science Publishers | Moffitt Publications |
| Mohr Siebeck e.K. | Mojúbŕolú Olufúnké Okome & Bertrade Ngo Ngijol-Banoum |
| Molecular Biology Society of Japan | Molecular Biology Today |
| Molecular Diversity Preservation International | Molecular Graphics and Modelling Society |
| Molecular Vision | Moment Publications |
| Monash Institute for the Study of Global Movements | Monash University |
| Monch Publishing Group | Mongabay.com |
| Monica Publishing Corporation | Montana Council of Teachers of Mathematics |
| Montana Professor | Monterey Institute for Technology and Education |
| Monthly Review | Morana RTD d.o.o. |
| Morbidity and Mortality Weekly Report | Morgan Stanley |
| Morion LLC | Moroccan Association of Researchers and Scholars |
| Morpo Review | Mosby, Inc |
| Moskovskie Novosti Publishing House | Motherisk |
| Mount Allison University | Mount Saint Vincent University |
| Mount Sinai School of Medicine | Mountain States Genetics Network |
| Movement Disorders Society | MSNBC |
| Multi-Science Publishing Co | MultiCraft Limited |
| Multilingual Matters & Channel View Publications | Multimed Inc. |
| Multimedia Educational Resource for Learning and Online Teaching | MultiMedia Healthcare/Freedom LLC |
| Multimedia Information and Technology | Multinational Finance Society |
| Munksgaard | Murdoch Univeristy |
| Muscular Dystrophy Association | Museo de Ciencias Naturales de Álava |
| Museu de Cičncies Naturals de la Ciutadella | Museum and Institute of Zoology at the Polish Academy of Science |
| Museum of Natural History and Archaeology | Museum Victoria |
| Museums Association | Music Council of Australia |
| Music Graduate Students' Association | Music Library Association |
| Music Teachers National Association | Musicological Society of Australia |
| Mymensingh Medical College |
