| Business | Phone |
| Emg Diagnostic Svc 20202 Highway 59 N # 345, Humble 77338 | (281) 540-7202 |
| Know 4 Sure Drug Testing Sltns 5919 Gnarled Oaks Ct, Humble 77346 | (281) 852-5669 |
| Laboratory Corp Of America 19002 Mckay Blvd, Humble 77338 | (281) 446-2766 |
| Quest Diagnotics 9816 Memorial Blvd, Humble 77338 | (281) 548-1771 |
| Quest Diagnotics 18955 N Memorial Dr, Humble 77338 | (281) 540-8237 |