- U Square Lifesciences
- UAP
- UL Skin Sciences
- U-Liang Pharmaceutical
- Ultramed
- Umeda
- Umedica Labs
- Uni Medicolabs
- Unicure
- Unilab Consumer Health
- UNILAB, Inc
- Unilever
- Union Chem & Pharm
- Union Korea Pharm
- Uni-Pharma
- Unipharma
- Unique
- Unique Biotech
- Unique Pharma Lab
- Unison
- United Biotech
- United Lab
- Unosource Pharma
- Urgo
- URSAPHARM
- USV Limited
- Utopian