| Business | Phone |
| Southwest Venture Group 10878 Westheimer Rd 178, Houston 77042 | (713) 827-8947 |
| Centennial Ventures 1330 Post Oak Blvd 1525, Houston 77056 | (713) 627-9200 |
| Davis Tuttle Venture Partners 8 E Greenway Plz 1320, Houston 77046 | (713) 993-0440 |
| Equus Ii Inc 2727 Allen Pkwy 13, Houston 77019 | (713) 529-0900 |
| Main Street Capital Partners 1300 Post Oak Blvd 800, Houston 77056 | (713) 350-6000 |
| Murphree & Co 1100 Louisiana St 5005, Houston 77002 | (713) 655-8500 |