- Maat Pharma
- maco-pharma
- Magis Farmaceuti Spa
- Majorelle
- Marinus Pharmaceuticals, LNC.
- Marlborough Pharmaceuticals Ltd
- Maruho Co Ltd
- Mayoly-spindler
- Mayoly-Spindler
- Medac
- Medac SAS
- Mediam
- Medipha Santé
- = Médipha Santé SAS
- Medisol
- Mediwin Ltd | BIOPHARMA BV
- Medtronic BioPharma BV
- Medynex
- Melisana Pharma France
- Menarini France
- Merck Serono SAS
- Mercury Pharma Group
- Mercury Pharmaceuticals Ltd
- MERIAL | NV
- Merus NV
- Merz Aesthetics France
- Merz Pharma France
- Messer France SAS
- MicroPharm Ltd
- Milpharma Ltd
- Miltenyi Biomedicine
- GmbH
- Mirati Therapeutics
- Mirum Pharmaceuticals France SAS
- Mission PharmaAccal
- Mitem Pharma
- Mobius Therapeutics LLC
- MOC
- Moderna Biotech Spain, SL
- Molnlycke sanitaria 353
- Morningside Healthcare Ltd
- MSD France
- vaccini msd
- MT Pharma America
- Mundipharma
- Mundipharma Limited
- Mylan
- Mylan Medical SAS
- Mylan Pharmaceuticals Limited
