Philippe Joel Maurice Redon

Keston Boilers Ltd. designs and manufactures domestic and commercial boilers. Its products include system range, heat range, frame and header kits, hot water storage systems, and wall-hung appliance. The company was founded in 1928 and is headquartered in Kingston upon Hull, the United Kingdom.

Bandwood Ltd. is a holding British company founded in 2005. The private company is based in Hull, UK. The company's description states that it operates as a holding company.

Part of Bangleflame Ltd., ISG Boiler Holdings Ltd. is a holding British company that operates subsidiaries which manufacture and distribute boilers. The company is based in Hull, UK and was founded in 2000.