| Business | Phone |
| Nbc Global Risk Management 700 Louisiana St 4220, Houston 77002 | (713) 223-7580 |
| Mc Vean Trading & Investments 6363 Woodway Dr, Houston 77057 | (713) 266-6844 |
| Us Securities Trading 363 N Sam Houston Pkwy E, Houston 77060 | (281) 820-7887 |
| Super Trade Llc 10515 Bellaire Blvd M, Houston 77072 | (281) 561-5768 |
| Refco Group 5847 San Felipe St 1560, Houston 77057 | (713) 266-0050 |
| South Shore Trading & Hedging 16862 Royal Crest Dr, Houston 77058 | (281) 480-4224 |
| Poly-Line 8615 Golden Spike Ln, Houston 77086 | (281) 272-1670 |