| Business | Phone |
| Verture 7324 Southwest Fwy 1900, Houston 77074 | (281) 552-6100 |
| American Access Inc 1400 W Belt Pkwy N, Houston 77043 | (713) 627-7283 |
| American International Assstnc 6464 Savoy Dr, Houston 77036 | (713) 267-2500 |
| Astros Insurance 6060 Bellaire Blvd D, Houston 77081 | (713) 661-9690 |
| Auto City 5807 Lodge Creek Dr, Houston 77066 | (281) 447-3700 |
| Biztel Lp 1235 North Loop W # 400, Houston 77008 | (713) 600-2600 |
| Bloom & Assoc 6302 Deerwood Rd, Houston 77057 | (713) 464-4876 |
| Call Center Concepts 10700 Northwest Fwy 107, Houston 77092 | (361) 887-1889 |
| Care America 6223 Richmond Ave 310, Houston 77057 | (713) 255-7800 |
| Choice Homes Houston 77011 | (713) 514-0888 |
| Computer Marketing Solutions 4050 Cheena Dr, Houston 77025 | (713) 812-1135 |
| Dunlap Marketing 3505 S Dairy Ashford St 225, Houston 77082 | (281) 833-3000 |
| Ekaw Enterprises 670 Maxey Rd, Houston 77013 | (713) 637-6145 |
| Message Center 8063 Main St, Houston 77002 | (713) 238-6002 |
| Lifeline Industries Inc 3400 Montrose Blvd 800, Houston 77006 | (713) 520-6773 |
| Houston Community Call Ctr 600 Jefferson St, Houston 77002 | (713) 289-8300 |
| Karen's Telemarketing 5619 Aldine Bender Rd, Houston 77032 | (281) 449-0848 |
| J & L Telemanagement Inc 2626 South Loop W # 415, Houston 77054 | (713) 661-9701 |