| Business | Phone |
| Bds Intl Llc Oil & Gas Dev 9535 Forest Ln, Richardson 75081 | (972) 808-9323 |
| Tinlin Investments 2077 N Collins Blvd 104, Richardson 75080 | (972) 234-5413 |
| Phd Investment Co 624 S Central Expy, Richardson 75080 | (972) 231-6030 |
| Qualityfund Investment 1202 Richardson Dr 309, Richardson 75080 | (469) 916-4974 |
| Guy Brown Investment Svc 1350 E Arapaho Rd 208, Richardson 75081 | (972) 792-8500 |