- La Croesus
- Labmate Pharma
- Laboratoire Aguettant
- Laboratoire Unither
- Laboratoires Chemineau
- Laboratoires Urgo
- Laboratorio Aldo-Union S.L.
- Laboratorio Elea
- Laboratorio Reig
- Laboratorios Leon Farma
- Laboratorios Liconsa
- Laboratorios Normon
- Laboratorios Silesia
- Lakeside Pharma
- Lark Lab
- LBS
- Legency Remedies
- Lek Pharma
- Lek S.A
- Leo Nutriscience LLP
- LEO Pharma
- Leonie Agri Corp
- Les Enterprises
- Les Laboratoires Servier Industrie
- Liaoning Chengda Biotechnology
- Lifesquare Lab
- Lilly del Caribe
- Littman
- Livzon
- Lloyd
- Logenex
- LRI
- LRI-Therapharma
- Lumen
- Lundbeck