Mitsubishi Electric Domestic Systems
http://domesticheating.mitsubishielectric.co.uk

Danfoss Heat Pumps UK
http://www.uk.heatpumps.danfoss.com

Climate Center
http://www.climatecenter.co.uk

Pipe Center
http://www.pipecenter.co.uk

Summit Skills
http://www.summitskills.org.uk/

Chartered Institute for Plumbing and Heating Engineering
http://www.ciphe.org.uk/

The National Skills Academy - Environmental Technologies
http://www.nsaet.org.uk/

The Air Conditioning & Heat Pump Institute
http://www.ior.org.uk

The Heating & Ventilating Contractors Association
http://www.hvca.org.uk

The Heat Pump Association
http://www.heatpumps.org.uk

Heating and Hotwater Industry Council
http://www.centralheating.co.uk

BEAMA
http://www.beama.org.uk

UHMA The Trade Association for Surface Heating and Cooling
http://www.uhma.org.uk/