3334 (Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing)

Thermo King / Trane Technologies is the leader in sustainable transport climate control solutions.

Perrin Manufacturing designs, tests and builds HVAC systems for off-road, heavy duty vehicles providing the heating and cooling needed for operators to work in comfort. These climate control systems are in earth movers, skid steers, tree mulchers, broom sweepers, tractors, sprayers, road pavers, loaders, road graders and more.

Perrin Manufacturing designs, tests and builds HVAC systems for off-road, heavy duty vehicles providing the heating and cooling needed for operators to work in comfort. These climate control systems are in earth movers, skid steers, tree mulchers, broom sweepers, tractors, sprayers, road pavers, loaders, road graders and more.

Industrial Maid, L.L.C. is primarily engaged in manufacturing industrial and commercial blowers, industrial and commercial exhaust and ventilating fans, and attic fans, or in manufacturing dust collection and other air purification equipment for heating, ventilating and air-conditioning systems or for industrial gas cleaning systems.

Design Industrial Radiators, Inc. is primarily engaged in manufacturing industrial and commercial fan products.

Cleaver-Brooks, Inc. is primarily engaged in manufacturing boiler and boiler room products.

Hastings Hvac, Inc. is primarily engaged in manufacturing heating equipment, except electric and warm air furnaces, including gas, oil, and stoker coal fired equipment for the automatic utilization of gaseous, liquid, and solid fuels.