| Business | Phone |
| Wyeth 31 Morehall Rd, Malvern 19355 | (484) 563-5000 |
| Centocor Inc 200 Great Valley Pkwy, Malvern 19355 | (610) 651-6000 |
| Sanofi Pharmaceuticals Inc 9 Great Valley Pkwy, Malvern 19355 | (610) 889-8600 |
| Message Pharmaceuticals 30 Spring Mill Dr, Malvern 19355 | (610) 695-0600 |