| Business | Phone |
| Air Associates W226n6323 Village Dr, Sussex 53089 | (262) 246-6900 |
| Becker Heating & Ac Spec W232n6342 Waukesha Ave, Sussex 53089 | (262) 246-8109 |
| Tms Svc Inc N76w24726 Ridgefield Dr, Sussex 53089 | (262) 820-0433 |
| Interstate Heating Co N53w24950 S Corporate Cir, Sussex 53089 | (262) 246-4772 |