| Business | Phone |
| Capricorn Pharma Inc 6900 English Muffin Way # A, Frederick 21703 | (301) 696-8520 |
| Royer Biomedical 4580f Mack Ave, Frederick 21703 | (301) 696-2177 |
| Sequoia Pharmaceutical Inc 5235 Westview Dr, Frederick 21703 | (240) 632-0094 |
| Sigma-Tau Pharmaceuticals 650 Research Dr, Frederick 21703 | (301) 831-4674 |