- Maat Pharma
- Maco-Pharma
- Magis Farmaceutici Spa
- Majorelle
- Marinus Pharmaceuticals, LNC.
- Marlborough Pharmaceuticals Ltd
- Maruho Co Ltd
- Mayoly-Spindler
- Mayoly-Spindler
- Medac
- Medac SAS
- Mediam
- Medipha Health
- = médipha santé sas
- Medisol
- Mediwin Ltd | Biopharma bv
- Medtronic BioPharma BV
- Medynex
- Melisana Pharma France
- Menariini France
- Merck Serono SAS
- Ομάδα Pharma Mercury
- Mercury Pharmaceuticals Ltd
- Merial | NV
- Merus NV
- Merz Αισθητική Γαλλία
- Merz Pharma France
- Messer France SAS
- Micropharm Ltd
- Milpherma Ltd
- Biomicine Miltenyi
- MIP Pharma GmbH
- Mirati Therapeutics
- Mirum Pharmaceuticals Γαλλία SAS
- Mission Pharmaccal
- Mitem Pharma
- Mobius Therapeutics LLC
- MOC || SL
- Moderna Biotech Spain, SL
- Molnlycke Health Care
- Morningoide Healthcare Ltd
- MSD Γαλλία
- εμβόλια MSD
- Mt Pharma America
- Mundipharma
- Mundipharma Research Limited
- Mylan
- Mylan Medical SAS
- Mylan Pharmaceuticals Limited