| Business | Phone |
| Wilson's Air Technologies Inc 5045 Yakima Ave, Tacoma 98408 | (253) 474-9928 |
| West Coast Heating 3576 E Spokane St, Tacoma 98404 | (253) 474-3283 |
| Advanced Concepts 3418 S 8th St, Tacoma 98405 | (253) 759-3367 |
| Advanced Energy Systems Tacoma 98402 | (253) 383-1545 |
| All Washington Heating & Air Tacoma 98404 | (253) 255-5126 |
| All Ways Air Control 1515 Center St, Tacoma 98409 | (253) 383-7718 |
| Aries Ii 15220 44th Ave E, Tacoma 98446 | (253) 537-2130 |
| Best Choice Heating 12608 37th Ave E, Tacoma 98446 | (253) 539-0703 |
| Narrows Heating & Air Cond Inc 1601 6th Ave, Tacoma 98405 | (253) 627-7543 |
| Kliemann Brothers Heating 4703 116th St E, Tacoma 98446 | (253) 537-0655 |
| J W Brower Heating & Air Cond 3424 S Tacoma Way, Tacoma 98409 | (253) 474-3731 |
| Jack Frost Co Inc 2112 109th St S, Tacoma 98444 | (253) 582-4515 |