Christopher Leonard Chisman

Pegler Ltd. manufactures plumbing, heating, and engineering products. Its products include valves, taps, mixers, utility taps, solder rings, lockshield packs couplings, compact pump stations, showers, and fittings. The company was founded in 1899 and is headquartered in Doncaster, the United Kingdom.

Harvard Technology Ltd. manufactures electronic discharge ballasts, liquid crystal display drivers and control products. The firm designs and develops LED lighting components and wireless control solutions for indoor and outdoor lighting. The company was founded by John Conrad McDonnell on October 28, 1993 and is headquartered in Manchester, the United Kingdom.

TEV Ltd. manufactures and markets air conditioning and refrigeration equipment. It specializes in cellar cooling, close control, marine and low temperature AC cooling systems. The firm produces a variety of equipment including direct expansion air conditioning systems, chilled water fancoils, and heat pumps for residential and small commercial properties. The company was founded in 1971 and is headquartered in Brighouse, the United Kingdom.

Thermal Energy Ventures Ltd. is a British company that manufactures and markets air conditioning and refrigeration equipment. The private company is based in Brighouse, UK. The company was founded in 2003.