| Business | Phone |
| Carolina Health Svc 1117 Saint Andrews Rd, Columbia 29210 | (803) 216-8410 |
| Carolina Occupational Health 1715 Blanding St, Columbia 29201 | (803) 799-3926 |
| Drug Testing Svc 769 Greenlawn Dr # B, Columbia 29209 | (803) 647-9400 |
| Midlands Exams & Drug Scrnng 9354 Two Notch Rd, Columbia 29223 | (803) 462-3784 |
| Random Drug Screens Inc 1345 Garner Ln # 303a, Columbia 29210 | (803) 772-0027 |
| Substance Abuse Consultants 3031 Scotsman Rd # 17, Columbia 29223 | (803) 419-1023 |