| Business | Phone |
| Dna Testing Center Inc 1201 W Airport Freeway # 251, Dallas 75207 | (214) 742-4362 |
| Orchid Cell Mark Inc 13988 Diplomat Dr 100, Dallas 75234 | (214) 631-8152 |
| Peoplescreen 15770 Dallas Pkwy 300, Dallas 75248 | (214) 615-2088 |
| Dna Maternity Testing Dallas 75208 | (214) 684-4908 |
| Genetesters 4567 S Westmoreland Rd, Dallas 75237 | (214) 333-9362 |