Below are companies that TWi has identified as authorized distributors in the United States.
- Akron Generics, LLC
- Alpine Health
- American Associated Pharmacies, Inc.
- American Health Services
- American Sales Company, Inc/Ahold
- AmerisourceBergen
- Anda, Inc.
- Animal Health International, Inc.
- Auburn Pharmaceuticals
- Bashas
- Bellco Drug
- Big Y Foods, Inc.
- Bloodworth Wholesale
- BluPax Pharma
- Bonita Pharmaceuticals
- Brookshire Grocery
- Burlington Drug Company
- Capital Wholesale Drug
- Cardinal Health
- CityMed RX
- Clipper Distributing Company, LLC
- Cochran Wholesale Pharmaceuticals
- Colossal Health
- CVS/Caremark
- Dakota Drug
- Delhaize
- Discount Drug Mart
- Drogueria Betances
- Drugs Unlimited
- Express Scripts
- FMC Distributors
- Frank W. Kerr
- GCP Pharma, LLC
- Genetco
- Giant Eagle
- Global Pharm Wholesale
- Golden State Medical Supply
- Golub Corporation/Price Chopper Pharmacy
- Group Health Cooperative
- Guardian Pharmacy
- H.D. Smith
- H.E.B
- Hartig Drug
- Healthsource Distributors, LLC
- Henry Schein
- Home Town Pharmacy
- HPC Rx
- Humana
- Hygen Pharmaceuticals
- Hy-Vee
- Independent Pharmacy Cooperative
- Independent Pharmacy Distributor, LLC
- JAMS Wholesale
- Kaiser Permanente
- Keysource Medical
- Kinray
- KPH Healthcare, Inc.
- Kroger
- KVAT/Food City
- Landmark Supply, Inc.
- Lewis Drug
- Louisiana Wholesale
- Magna Pharmaceuticals
- Major Pharmaceuticals
- Masters Pharmaceutical
- Masters Specialty Pharma
- Matrix Distributors
- McKesson Drug
- Meijer
- Miami-Luken
- Morris & Dickson
- National Apothecary Solutions/Atlantic Biologicals
- Nationwide Pharmaceutical
- NDC Distributors
- North Carolina Mutual Drug
- Northwest Generics, Inc.
- Osborn Drug
- ParMed Pharmaceuticals
- Patterson Veterinary
- PD-Rx Pharmaceuticals
- Penn Vet Supply
- Pharmacy Buying Association
- Prescription Supply, Inc.
- PriMed Pharmaceuticals
- Proficient Rx
- Publix
- Quality Care Products, LLC
- Quest Pharmaceuticals
- R&S Northeast, LLC
- Raleys
- Red Parrot Distribution
- Richie Pharmacal
- Rochester Drug
- Safe Chain Solutions
- Save Mart
- Schnucks Markets
- Second Source RX
- Smith Drug Company
- Southpointe Wholesale
- SpartanNash
- SuperValu Inc.
- Taiga Distribution LLC
- The Harvard Drug Group
- Thrifty White
- TopRx
- Tops Markets
- Valley Wholesale Drug
- Value Drug Company
- Vedco Inc.
- Wakefern Food Corporation
- Wal-Mart
- Weis Markets Inc.
- Winn-Dixie Logistics