• Central Fan Company

• Champion Fan Corp.

• Chelsea Fans & Blowers

• Chicago Blower Corp.

• Cincinnati Fan

• Coast Products

• Cooper Carry, Inc.

• Cox A/C & Heating, Inc.

• Crowley Co.

• Custom Hotel Painting

• DF Fan Services

• DISA

• Dal Pos

• Davis Energy Systems

• DuraLast Products Corporation

• EBM/Papst

• Elliott Co.

• Ellis & Watts

• Exhausto

• Facilitec Corporation

• Field Controls LLC

• Gantec Equipment Co.

• Gatter & Diehl, Inc.

• General Resource Corp.

• Governair Corp.

• Grand Entrance Gates, Ltd.