Companies

• CSI Control Systems International

• Cameron Engineering & Associates, LLP

• Car-Mon Products, Inc.

• Chain Link Systems

• Chalfant Dor-Seals

• Coil Company

• Comfortmaker

• Commercial Environmental Systems Group

• Compu-Aire

• ControlAir Inc.

• Data Aire

• Delval Equipment Corporation

• Des Champs Laboratories Incorporated

• Dunham-Bush, Inc.

• Ellis & Watts

• Enviromaster International

• Evcon Industries (York International Corp.)

• First Co.

• Friedrich Air Conditioning Co.

• Gardner Denver, Inc.

• Gaylord Industries, Inc.

• Geoflex Systems

• Global Industrial

• Governair Corp.

• Grand Entrance Gates, Ltd.

• Hastings HVAC, Inc.