- Aaon
- Addison Products
- Aire-Flo
- Airquest
- Airtemp
- Allied Air
- Amana
- American Furnace (AFCO)
- American-Standard
- Ameristar
- Arco
- Arkla
- Armstrong
- Bard
- Bohn
- Burnham
- Bryant
- Carrier
- Century
- Climatemaster
- Comfortaire
- Comfortmaker
- Command-Aire
- Consolidated
- Coolerator, McGraw-Edison
- Crane
- Cumberland
- DaikinD