- Mabgeek Biotechnology Co., Ltd.China
- Mabion S.a.Poland
- Mablytics, Inc.United States
- Macleods Pharmaceuticals Ltd.India
- MACROCYCLICS INCUnited States
- Macrogenics, Inc.United States
- MACSEN DRUGSIndia
- Maddox Pharma SwissSwitzerland
- Madrigal Pharmaceuticals, Inc.United States
- MAHENDRA CHEMICALSIndia
- MAHIMA LIFE SCIENCES PRIVATE LTDIndia
- Maithili Life Sciences Private LimitedIndia
- MAITHRI DRUGS PRIVATE LTDIndia
- MALLADI DRUGS AND PHARMACEUTICALS LTDIndia
- Mallinckrodt PharmaceuticalsUnited Kingdom
- MANGALAM ORGANICS LTDIndia
- Manisha Analytical Laboratories Pvt. Ltd.India
- Mankind Pharma LimitedIndia
- MannKind CorporationUnited States
- Mantecorp Farmasa Ltda.Brazil
- MAPRIMED SAArgentina
- MARCUS RESEARCH LABORATORY INCUnited States
- Marcyrl Pharmaceutical IndustriesEgypt
- MARIAGER SALT SPECIALTIES A/SDenmark
- Marion Merrell Dow Inc.France
- Martek BiosciencesUnited States
- MARUHA NICHIRO CORPJapan
- MassbiologicsUnited States
- Matrix PharmaPakistan
- MATRIX PHARMACORP PRIVATE LTDIndia
- Maxheal Pharmaceuticals (India) LimitedIndia
- Maxigen Biotech Inc.Taiwan
- Mayne Group LimitedAustralia
- Mayo ClinicUnited States
- Me Therapeutics Holdings Inc.Canada
- Med-x-press GmbhGermany
- Meda ABSweden
- MEDAC GESELLSCHAFT FUR KLINISCHE SPEZIALPRAPARATE MBHFrance
- Medac Pharma Production A.s.Czechia
- Medac Pharma Production GmbhGermany
- MedarexUnited States
- Medical Innovations IncorporatedUnited States
- Medicamen Biotech LimitedIndia
- MEDICHEM MANUFACTURING (MALTA) LTDMalta
- MEDICHEM SASpain
- MediciNova, Inc.United States
- MedicisUnited States
- Medika D.d.Croatia
- MEDILUX LABORATORIES PVT LTDIndia
- MedImmune, LLCUnited States
- MEDINOL LTDIsrael
- MediNova Research Inc.United States
- MediPharma Inc.United States
- MedirexColombia
- MedisSlovenia
- MediscaCanada
- Medivation, Inc.United States
- MediView Pharmaceuticals, Inc.United States
- MedKinetics Pharmaceuticals Inc.United States
- Medochemie LtdCyprus
- MEDOPHARM PRIVATE LIMITEDIndia
- Medpace Holdings, Inc.United States
- Medpointe Pharmaceuticals Inc.United States
- Medreich LimitedIndia
- Medtronic plcUnited States
- Medunik Canada Inc.Canada
- Medytox Inc.South Korea
- Mega Lifesciences Public Company LimitedThailand
- MEGAFINE PHARMA P LTDIndia
- Megakaryon CorporationJapan
- MegaPharma Inc.United States
- MEGHMANI LLPIndia
- MEHTA API Pvt. Ltd.India
- Meiji Pharma Spain, S.a.Spain
- Meiji Seika Pharma Co., Ltd.Japan
- MEITEK TECHNOLOGY QINGDAO CO LTDChina
- MEITO CO LTDUnited Kingdom
- Melinta Therapeutics, Inc.United States
- MELODY HEALTHCARE PVT LTDIndia
- MEMBRANE SOLUTIONS NEW MATERIAL TECHNOLOGY (NANTONG) CO LTDChina
- Memorial Sloan Kettering Cancer CenterUnited States
- Memphis Pharmaceutical Inc.Egypt
- MENADIONA SLSpain
- Menarini - Von Heyden GmbhGermany
- MentalHealth Inc.United States
- Mepha Pharma AGSwitzerland
- Mepro Pharmaceuticals Pvt. Ltd.India
- Mera Cannabis Corp.Canada
- Merck & Co., Inc.United States
- Merck Healthcare KGaAGermany
- Merck KGaAGermany
- Merck KGaA, Darmstadt, GermanyGermany
- Merck Santé S.A.S.France
- MERCK SANTE SASFrance
- Merck Serono S.A.Germany
- Merck Sharp & Dohme Ireland (Human Health) LimitedIreland
- Merck Sharp & Dohme LLCUnited States
- Merckle GmbHGermany
- Mereo BioPharma Group plcUnited Kingdom
- Meridian Bioscience Inc.United States
- Merind LimitedIndia
- Merit Medical OncologyUnited States
- Merit Medical Systems, Inc.United States
- Merus N.V.Netherlands
- Merz Aesthetics GmbHGermany
- Merz Pharmaceuticals GmbHGermany
- Mesoestetic Pharma GroupSpain
- Messer AustriaAustria
- Messer FranceFrance
- Messer Hungarogáz Kft.Hungary
- Metabolic Research Institute, Inc.United States
- MetaboLife Pharmaceuticals Inc.United States
- Metrics Contract ServicesUnited States
- Metro Drug, Inc.Philippines
- METROCHEM API PRIVATE LTDIndia
- Mfluidx Inc.United States
- Mg Health LimitedLesotho
- Mibe Gmbh ArzneimittelGermany
- Michael J. Fox Foundation for Parkinson's ResearchUnited States
- MICRO LABS LTDIndia
- Microbac Laboratories, Inc.United States
- MICROBIOPHARM JAPAN CO LTDJapan
- Microbiotica LtdUnited Kingdom
- Microcoat Biotechnologie GmbhGermany
- MicroPort Scientific CorporationChina
- Midas Care Pharmaceuticals Pvt. LtdIndia
- MIDAS PHARMA GMBHGermany
- MIDORI KAGAKU CO LTDJapan
- MIDWEST MEDICAL ISOTOPES LLC DIVISION CYCLOTRONUnited States
- Mikart, LLCUnited States
- MIKROCHEM SPOL SROSlovakia
- Milan Laboratories (india) Pvt. Ltd.India
- Millennium Pharmaceuticals, Inc.United States
- Millmount Healthcare LimitedIreland
- Miltenyi Biomedicine GmbHGermany
- MINAKEMFrance
- MINAKEM HIGH POTENTBelgium
- Mind Neurosciences Inc.United States
- MindBio Therapeutics Inc.Canada
- Mindstate Design LabsUnited States
- Minerva Neurosciences, Inc.United States
- Mint Pharmaceuticals Inc.Canada
- Mipharm SpaItaly
- Mirati Therapeutics, Inc.United States
- Mirum Pharmaceuticals, Inc.United States
- MIRUS BIO LLCUnited States
- Mission PharmacalUnited States
- Mitsubishi Tanabe Pharma CorporationJapan
- MJ BIOPHARM PVT LTDIndia
- MODAG GmbHGermany
- Moderna, Inc.United States
- ModernaTX, Inc.United States
- MOEHS IBERICA SLSpain
- Moleac Pte LtdSingapore
- Molecular Insight Pharmaceuticals, Inc.United States
- Molecular Partners AGSwitzerland
- MolecuLight Inc.Canada
- Mölnlycke Health Care ABSweden
- MONACHEMIndia
- Moonwalk BiosciencesUnited States
- MORECELL BIOMEDICAL TECHNOLOGY DEVELOPMENT CO LTD SHENZHENChina
- MOREPEN LABORATORIES LTDIndia
- MorphoSys AGGermany
- MORTON SALT INCUnited States
- Mosaic ImmunoEngineering, Inc.United States
- Ms PharmaJordan
- MsdUnited States
- MSD INTERNATIONAL GMBH (SINGAPORE BRANCH)Singapore
- MSN Laboratories Private LimitedIndia
- MSN PHARMACHEM PRIVATE LTDIndia
- MUBY CHEM PRIVATE LTDIndia
- Multiple Manufacturers Inc.United States
- MundipharmaSingapore
- MURLI KRISHNA PHARMA PVT LTDIndia
- Mustafa Nevzat PharmaceuticalsTurkey
- Mycenax Biotech Inc.Taiwan
- Mycoplasma Biosafety Services GmbH - Bio Tech Center MuthgasseAustria
- Mycovia Pharmaceuticals, Inc.United States
- MylanUnited States
- Mylan Pharmaceuticals UlcCanada
- Mylan SpecialtyUnited States
- MyoKardia, Inc.United States
- MyonexUnited States
- Myoscience, Inc.United States
- Myovant Sciences Ltd.United States
- MYTHEN SPAFrance