| Business | Phone |
| Atqs Engineering 410 E Dove Ave, Mcallen 78504 | (956) 668-8683 |
| Butler Management Consultants Mcallen 78501 | (956) 682-0956 |
| Childress Engineering Svc 929 E Esperanza Ave, Mcallen 78501 | (956) 668-9655 |
| Dannenbaum Engineering 1109 W Nolana Loop, Mcallen 78504 | (956) 682-3677 |
| Enprotec Inc 6009 N 17th St, Mcallen 78504 | (956) 668-9088 |
| Halff Associates Inc 5000 W Military Hwy 100, Mcallen 78503 | (956) 664-0286 |
| K K Engineering 410 E Dove Ave, Mcallen 78504 | (956) 630-2125 |
| P E Svc 721 Beech Ave, Mcallen 78501 | (956) 618-1479 |
| Peg Svc 4305 N 10th St, Mcallen 78504 | (956) 630-4330 |
| Pena Engineering & Surveying 1001 Whitewing Ave, Mcallen 78501 | (956) 682-8812 |
| Raba-Kistner Consultants Inc 800 E Hackberry Ave, Mcallen 78501 | (956) 682-5332 |
| S & B Infrastructure 5408 N 10th St, Mcallen 78504 | (956) 994-3613 |
| Salinas Engineering & Assoc 1013 Sycamore Ave, Mcallen 78501 | (956) 682-9081 |
| Unitech Engineering 5201 N Ware Rd, Mcallen 78504 | (956) 928-1404 |
| Universal Engineering Corp 1600 Richmond Ave, Mcallen 78503 | (956) 618-2202 |