Acme - In-line, roof, wall, kitchen, backward inclined, air foil fans

Baltimore Aircoil Company - Cooling Towers, fluid coolers, evaporative condensers

Canatal - Computer room air conditioning systems

Climatemaster - Advanced water source heat pump systems

Tranter - Plate & frame heat exchangers

Herrmidifier - Electronic steam humidification systems

International Comfort Products - Residential and commercial heating & cooling products

VAPAC - Electronic steam humidifiers

Dectron - Swimming pool, ice rink, and industrial dehumidification systems

Thermolec - Electric heating coils