• Syndesis Inc.

• T-DRILL Industries Inc.

• Tempmaster

• Temtrol

• The Whalen Company

• Thomas & Betts Electrical

• Trane Company

• Trevor-Martin Corp

• Venmar CES Inc.

• Venmar Ventilation, Inc.

• Ventamatic Ltd.

• Vilter Mfg. Corp.

• Vittitow Refrigeration

• Watts Radiant

• Weil-McLain

• Westblock Pacific

• Will-Burt Company

• Williams Furnace Co.

• World Panel Products, Inc.

• Zomeworks Corp.