| Business | Phone |
| Sky Tel Air Ground 1200 Commerce Dr, Plano 75093 | (972) 867-1010 |
| Intelemedia Communications 1255 W 15th St 700, Plano 75075 | (972) 994-0700 |
| Adbanstar Communications 3941 Legacy Dr # 204-229b, Plano 75023 | (972) 335-5801 |
| Benefits Communications Corp 1400 Preston Rd, Plano 75093 | (972) 398-1358 |
| Careview Communications 5000 Legacy Dr, Plano 75024 | (972) 943-6050 |
| Comm Data 4657 Portrait Ln, Plano 75024 | (972) 491-3902 |
| Communications By Design 5800 W Plano Pkwy, Plano 75093 | (972) 713-0424 |
| Coyote Communications 2601 Royal Oaks Dr, Plano 75074 | (972) 867-2330 |
| Ditech Communications Corp 5800 W Plano Pkwy, Plano 75093 | (972) 931-3482 |
| Entrisphere Inc 6829 K Ave 108, Plano 75074 | (214) 291-2800 |
| Gbh Communications 5700 Granite Pkwy, Plano 75024 | (214) 387-3244 |
| I P Communications 4828 Bull Run Dr, Plano 75093 | (972) 519-0065 |
| M H Communications 1804 K Ave, Plano 75074 | (972) 423-6949 |
| Meyne Communications 3401 Chaney Ln, Plano 75093 | (972) 333-4024 |
| Precision Communications Svc 1801 10th St, Plano 75074 | (972) 836-0374 |
| Tiger Networks Inc 1607 Capital Ave, Plano 75074 | (972) 744-0080 |
| Valu Added Communications 3801 E Plano Pkwy, Plano 75074 | (972) 423-0131 |
| Spirent Communications 101 E Park Blvd, Plano 75074 | (972) 516-3846 |
| Telena Communications 5068 W Plano Pkwy, Plano 75093 | (972) 248-5800 |