- Ace Heating & Air Conditioning
- Bob Goff Heating & Air Cond
- Collins Cooling & Heating Co
- Haky Heating Inc
- Heating Sales & Svc Co
- K C Heating & Cooling Inc
- Lennox Industries Inc
- Metrik Heating & Cooling Svc
- Midwest Heating & Cooling
- Miker & Conahan Htg & Coo Ling
- Ohio Refrigeration Svc
- Rodriguez Heating & Plumbing