| Business | Phone |
| Standard Southern Corp 5720 Indian Cir, Houston 77057 | (713) 953-0694 |
| National Railroad Passenger 902 Washington Ave, Houston 77002 | (713) 223-6000 |
| Union Pacific Railroad 808 Travis St, Houston 77002 | (713) 220-3200 |
| Union Pacific Railroad 1503 Sawyer St, Houston 77007 | (713) 862-9283 |
| Union Pacific Railroad 610 Burnett St, Houston 77009 | (713) 224-0165 |
| Union Pacific Railroad 402 Harrington St, Houston 77009 | (713) 227-2982 |
| Union Pacific Railroad 3601 Bennington St, Houston 77016 | (713) 491-0066 |
| Union Pacific Railroad 4812 Gulf Fwy, Houston 77023 | (713) 926-6669 |
| Union Pacific Railroad 7500 Magnolia St, Houston 77023 | (713) 926-8346 |
| Union Pacific Railroad 12611 Beaumont Hwy, Houston 77049 | (713) 225-1693 |
| Union Pacific Railroad 245 Fariss St, Houston 77054 | (713) 838-9053 |
| Ramp Management Llc 8706 Villa Dr, Houston 77061 | (713) 641-1524 |
| Union Pacific Railroad 20909 Hardy, Houston 77073 | (281) 443-0349 |
| Csx Transportation 4888 Loop Central Dr 405, Houston 77081 | (713) 664-6850 |
| Union Pacific Railroad 2802 Moy St, Houston 77007 | (713) 864-3686 |
| Port Terminal Railroad Assn 8934 Manchester St, Houston 77012 | (713) 393-6500 |
| Ttx Co 204 Brisbane St, Houston 77061 | (713) 641-3910 |