White Industries
- Manufacturer of AC service equipment, tools, supplies and accessories as well as coolant and ATF fluid exchangers.
- http://whiteac.com/

Visionaire, Inc.
- Manufacturer and distributor of air conditioning, heating, and cabin pressurization products for off-road equipment, cranes, and military vehicles.
- http://www.visionaire-inc.com/

Autoclimate
- Vehicle air conditioning information, service and repair information. Separate area for vehicle owners and service providers. From UK.
- http://home.btconnect.com/AUTOCLIMATE/

DC Airco Company
- Manufacturers of direct current 12, 24, and 48 volt powered air conditioners for trucks, trains, and telecom shelters.
- http://www.dcairco.com/

Sanden International, Inc.
- Independent a/c compressor manufacturer. Supplying the automotive, truck, construction and other vehicle manufacturers as well as the aftermarket with quality, performance air conditioning compressors.
- http://www.sanden.com

Santech Industries
- Providing sealing technology to the automotive A/C aftermarket.
- http://www.santech.com

Elite Automotive Systems Ltd
- Contract manufacturers of heating and ventilation air conditioning systems for all vehicles powered by petrol, deisel and electric. From UK.
- http://www.eliteautomotive.co.uk/

Sanden Vikas India Ltd
- Manufactures automotive air conditioning systems. Based in India. Supplies to major OEMs.
- http://www.sandenvikas.com/

Red Dot Corporation
- Manufactures heater and air conditioner systems and components for mobile applications.
- http://rdac.com/

Frigi-Tech International
- Manufactures refrigerant oil additive that is polarized and is compatible with other refrigerant oils.
- http://www.frigi-tech.com/

Nartron Corporation
- Manufactures refrigerant device that increases air conditioning cooling at idle and city traffic conditions.
- http://www.aircondition.com/vov/

PrimeSourceAuto.com
- Manufacturer and distributor automotive air conditioning.
- http://www.primesourceauto.com/

Cysra
- Rebuilds automotive air conditioning compressors. From Mexico.
- http://www.compresores.com.mx/

Hancock Industries
- Remanufacturer of automotive air conditioner compressors and distributor of related air conditioning parts.
- http://www.hancockindustries.com/

Primore
- Manufactures a wide range of valves for automotive, residential, and commercial air conditioning applications.
- http://www.primore.com/

Sedco Division of Primore, Inc.
- Manufacturer of pressure relief valves for automotive air conditioning systems and hermetic compressors.
- http://www.sedco-prv.com/