| Business | Phone |
| Bluegrass Clinical Research 5512 Bardstown Rd, Louisville 40291 | (502) 231-1982 |
| Cancer Research Center Of America 8622 Blackpool Dr, Louisville 40222 | (502) 339-1282 |
| Holmes Research 810 Alden Rd, Louisville 40207 | (502) 657-6479 |
| Humrro 10503 Timberwood Cir 101, Louisville 40223 | (502) 721-9045 |
| L Marc Research Ctr 3288 Illinois Ave, Louisville 40213 | (502) 515-5672 |
| Research & Evaluation Spec 1300 S 4th St, Louisville 40208 | (502) 637-7760 |
| Research Services Inc 4310 Ravenwood Dr, Louisville 40220 | (502) 473-8766 |
| Thorn Bioscience 1048 E Chestnut St, Louisville 40204 | (502) 515-1100 |
| Variant Research Corp 9204 Taylorsville Rd # 111, Louisville 40299 | (502) 499-1886 |