Premier Members
- Airvector
- Airwell-Fedders North America Inc.
- Allied Air Enterprises
- Arzel Zoning Technology
- Belimo Americas
- ClimateMaster
- Daikin AC Inc.
- DuPont Refrigerants
- Dynatemp International
- Elster Kromschroder-Hauck Mfg. Co.
- Fantech
- Fluke Corporation
- Gray Metal South, Inc.
- Gunder & Associates, LLC
- Honeywell International
- Invensys Controls Americas
- L G Electronics
- M & M Manufacturing Company
- Mueller Industries, Inc.
- NIBCO Inc.
- Nu-Calgon
- Rheem/Ruud Heating & Air Conditioning
- Schwank Ltd.
- Sheet Metal Connectors, Inc.
- Shupe, Carboni & Associates
- Southwark Metal Mfg. Co.
- Sporlan Division of Parker Hannifin
- Superior Radiant Products Ltd.
- Williams Furnace Company
- ZONEFIRST
