| Business | Phone |
| United Refrigeration 2840 Virgo Ln, Dallas 75229 | (972) 620-8060 |
| York 1920 Hutton Ct 400, Dallas 75234 | (972) 263-8281 |
| York International Corp 1920 Hutton Ct 500, Dallas 75234 | (972) 241-1219 |
| Kason Southwest Corp 2130 Irving Blvd, Dallas 75207 | (214) 741-1431 |
| Heat Craft Inc 1717 W Airfield Dr, Dallas 75261 | (972) 456-2777 |