| Business | Phone |
| Greens Parkway Mud 1403 Mcaulty Rd, Houston 77032 | (281) 821-4103 |
| Guy H Thomas & Assoc 5107 Lodge Creek Dr, Houston 77066 | (281) 444-1366 |
| Infomedia Network Inc 1020 Bay Area Blvd 216, Houston 77058 | (281) 218-0700 |
| Informetrics 12121 Wickchester Ln 100, Houston 77079 | (281) 531-0282 |
| Jefferson Associates Inc 17045 El Camino Real 100, Houston 77058 | (281) 286-4000 |
| Larsen & Doubro Information 4606 Fm 1960 Rd W, Houston 77069 | (281) 580-9442 |