• Rupp Industries Inc.

• Spencer Turbine Co.

• Spendrup Fan Co.

• Stanley Fans

• Stansteel and Hotmix Parts and Service

• Sterling HVAC Equipment

• Swartwout

• TEDCO Construction Corp.

• Techmaster Inc.

• Thomas & Betts

• Tjernlund Products, Inc.

• Trane Co.

• Trent Technologies

• Urban Design Group, Inc.

• V.I.P. Structures

• Vent-Axia Coast Products, Inc.

• Western Pneumatics

• York Snow (Snowmax)

• ebm Industries, Inc.