| Business | Phone |
| A & J Sales 4219 Floyd Blvd, Sioux City 51108 | (712) 239-3390 |
| American Air Conditioning 1429 Fairview Blvd, Sioux City 51105 | (712) 252-2153 |
| Anderson Heating & Cooling 1779 110th St, Sioux City 51108 | (712) 258-4328 |
| De Rocher Svc 4900 Derocher Path, Sioux City 51106 | (712) 943-5780 |
| Dennis Supply Co 300 W 7th St, Sioux City 51103 | (712) 255-7637 |
| Dennis's Heating & Air Cond Sioux City 51106 | (712) 274-2127 |
| Energy-Wise 4201 41st St, Sioux City 51108 | (712) 239-1164 |
| Farrell's Heating & Air Cond Sioux City 51101 | (712) 233-3005 |
| Gormally's Heating & Air Cond 3010 Glen Ellen Rd, Sioux City 51106 | (712) 239-1314 |
| Ideal Temperature Systems 3113 Harris St, Sioux City 51103 | (712) 258-8973 |
| Jordan Air Heating & Cooling 222 W 7th St, Sioux City 51103 | (712) 255-0380 |
| Tri-View Heating & Cooling 405 W 6th St, Sioux City 51103 | (712) 255-4396 |