| Business | Phone |
| Air Net Systems Inc 3930 Kirby Dr, Houston 77098 | (713) 524-9030 |
| Air Net Systems Inc 9000 Randolph St, Houston 77061 | (713) 643-9381 |
| Air Traffic Management 16550 Air Center Blvd, Houston 77032 | (281) 821-2002 |
| Airport Delivery Svc 747 Shepherd Dr 100, Houston 77007 | (713) 869-7575 |
| Express One Houston 9898 Bissonnet St 400, Houston 77036 | (713) 779-7447 |
| International Courier Systems 6160 Westview Dr, Houston 77055 | (713) 688-4599 |
| International Mail Express 13700 Veterans Memorial Dr, Houston 77014 | (281) 397-6098 |
| Network Courier Svc 6610 W Sam Houston Pkwy N, Houston 77041 | (281) 272-9600 |