| Business | Phone |
| Norchem Drug Testing 200 W Belknap St, Fort Worth 76102 | (817) 810-9860 |
| Occupational Health Solutions 3645 Western Center Blvd, Fort Worth 76137 | (817) 306-9200 |
| Quest Psc Fort Worth 76102 | (817) 348-0362 |
| Alliance Occupational Health 2821 Lackland Rd 202, Fort Worth 76116 | (817) 315-2753 |
| American Computer 3950 Fossil Creek Blvd 106, Fort Worth 76137 | (817) 847-0477 |
| Armor Care 5009 Brentwood Stair Rd, Fort Worth 76112 | (817) 446-0075 |
| Fleet Screen Ltd 6000 Western Pl, Fort Worth 76107 | (817) 332-0044 |