| Business | Phone |
| Battelle Memorial Institute 115 Park Ave # B, Oklahoma City 73102 | (405) 231-5564 |
| Central Ear Research Institute 3400 Nw 56th St, Oklahoma City 73112 | (405) 947-6116 |
| Clinical Reference Lab 36 W Memorial Rd, Oklahoma City 73114 | (405) 748-4190 |
| Diagonstic Laboratory-Ok 3000 United Founders Blvd #141, Oklahoma City 73112 | (405) 607-4020 |
| General Dynamics Corp 3001 S Douglas Blvd, Oklahoma City 73150 | (405) 732-6686 |
| Kerr-Mc Gee Technical Center 3301 Nw 150th St, Oklahoma City 73134 | (405) 775-5000 |
| Lab Industries 6916 Ne 23rd St, Oklahoma City 73141 | (405) 424-7600 |
| Metalab 7845 N Robinson Ave # H3, Oklahoma City 73116 | (405) 848-8378 |
| Sooner Clinical Research 5929 N May Ave # 401, Oklahoma City 73112 | (405) 843-0374 |