Manufacturers
- LW Scientific
- Major Pharmaceuticals
- MarketLab, Inc.
- McCord Research, Inc.
- McMerlin Dental Products
- Med-Chain Logistics, Inc.
- Med-Tech Resource, LLC
- Medegen Medical Products, LLC
- Medi-Tech International Corp
- Medi-Tech International Corp SEE Marketlab
- Medical Action Industries
- Medical ID Solutions
- Medical Indicators, Inc.
- Medicom, Inc.
- MediPurpose
- MediVena
- Medtronic/Minimally Invasive Therapies (MIT)
- Medtronic/Minimally Invasive Therapies Group
- Merck & Co.
- Metier Medical USA, LLC
- Metrex Research Corporation
- MHC Medical Products, LLC
- Micro-Scientific Industries, Inc.
- Micro-Scientific, USA
- MicroCare, LLC
