Building Engineering Services Association (BESA), until 2012 the Heating and Ventilating Contractors Association, and from then until 2016, B&ES, is the main UK trade association for companies that design, install, commission and maintain heating, ventilation, air conditioning, refrigeration (HVACR) and related engineering projects.

Embraco is a global company that promotes quality of life through innovative cooling solutions. Embraco provides cooling solutions for household, commercial, such as medical and retail applications, and aftermarket segments.

Fujitsu General Australia is one of the pioneering suppliers of air conditioning products in Australia. The company's origins date back to the 1960s through a sales distribution company known as General Colour Pty Ltd, selling color televisions. In 1980 became a full subsidiary of the General Corporation in Japan and General Corporation Japan (Aust.) Pty Ltd was formed.

Global Optimism is a purpose driven enterprise focused on social and environmental change. Global Optimism exists to precipitate a transformation from pessimism to optimism as a method of creating social and environmental change.

Heat Pump Federation lobbies government for long term policy supporting the electrification of heating and cooling, works to raise awareness, understanding and confidence in heat pump technology across both domestic and commercial sectors, and collaborates with government, industry and consumers to make this a reality.

Heating Force has experience on both sides of the heating industry, and that’s enabled them to build one of the biggest free resources in the UK – helping over 60,000-150,000 visitors with boiler problems every-single-month. They also connect homeowners with cheap boiler installers, such as HEATABLE or WarmZilla.

International Accreditation Forum (IAF) is the world association of Conformity Assessment Accreditation Bodies. Its primary function is to develop a single worldwide programme of conformity assessment, which reduces risk for business and its customers by assuring them that accredited certificates may be relied upon.

Mitsubishi Heavy Industries, Ltd. delivers innovative and integrated solutions across a wide range of industries from commercial aviation and transportation to power plants and gas turbines, and from machinery and infrastructure to integrated defense and space systems.

Serving over 80,000 customers a year, Pimlico is London's pioneering service company excellent on Trustpilot. Founded in 1979, with over 250 vehicles on London's roads, can respond to customer emergencies in under one hour.