| Business | Phone |
| Amtek Information Svc Inc 4001 Sherwood Ln, Houston 77092 | (713) 956-0100 |
| Dob's Data 9055 Gaylord St, Houston 77024 | (713) 468-6303 |
| F W Mc Graw Dodge 4101 Greenbriar St, Houston 77098 | (713) 522-5089 |
| F W Dodge Mc Graw-Hill 4101 Greenbriar St 320, Houston 77098 | (713) 529-4895 |