| Business | Phone |
| Manex Corp 3232 Garden Brook Dr, Dallas 75234 | (972) 241-6674 |
| Aircondex Inc 5111 Mercantile Row, Dallas 75247 | (214) 634-0653 |
| Ridenour Co 10625 Control Pl, Dallas 75238 | (214) 823-7917 |
| Delta Industries 1300 S Polk St, Dallas 75224 | (214) 941-3135 |
| Air Control Technology Corp 2805 S Belt Line Rd, Dallas 75253 | (214) 747-0214 |