| Business | Phone |
| Vlr Embedded Inc 3035 W 15th St, Plano 75075 | (972) 238-7433 |
| Childress Engineering Svc 1700 Alma Dr, Plano 75075 | (972) 422-4480 |
| Dowdey Anderson & Assocs Inc 5225 Village Creek Dr 200, Plano 75093 | (972) 931-0694 |
| Epitech Engineering Svc 701 E Plano Pkwy 408, Plano 75074 | (469) 467-7466 |
| Global Converging Technologies 1800 Preston Park Blvd, Plano 75093 | (972) 943-9995 |
| Robert Hall Pe 4429 Helston Dr, Plano 75024 | (972) 377-6630 |
| Hntb 5910 W Plano Pkwy 200, Plano 75093 | (972) 661-5626 |
| Jamesport Group 1401 Capital Ave # C, Plano 75074 | (972) 943-9322 |
| Klinkert & Assoc Inc Po Box 262501, Plano 75026 | (214) 774-4840 |
| Nelson Architectural Engineers 2740 Dallas Pkwy # 220, Plano 75093 | (214) 528-8765 |
| Persohn Hahn Assoc Po Box 826, Plano 75023 | (972) 517-8050 |
| Pond Robinson & Assoc 2400 Dallas Pkwy 200, Plano 75093 | (972) 732-6400 |
| Sabreen Group Inc 5837 Wavertree Ln, Plano 75093 | (972) 250-4664 |