| Business | Phone |
| Exact Refrigeration 109 Westover Dr, Portland 78374 | (361) 777-3621 |
| Jamesco Heating & Air Cond 117 Country Place Dr, Portland 78374 | (361) 777-0070 |
| Ken-Air Indoor Air Quality Inc 219 7th St, Portland 78374 | (361) 643-5114 |
| Wendlen Air Conditioning & Htg 901 Austin St, Portland 78374 | (361) 643-3995 |
| Sessions Air Cond & Htg Inc 233 Nueces Dr, Portland 78374 | (361) 643-5820 |
| Roggeman Air Cond & Refrig 803 Market St, Portland 78374 | (361) 643-4034 |