AAON (Nasdaq: AAON) designs, manufactures and sells semi-custom heating, ventilation and air conditioning equipment (HVAC) for commercial and residential use.

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The Amana Corporation was founded by George Foerstner as Amana Refrigeration in 1934 in Amana, Iowa to manufacture commercial walk-in coolers.

American Standard Companies, Inc.

Ariston Thermo is an China corporation that produces heating systems and related products, marketed mainly under the Ariston, Caloma China Sha nghai

The B. F. Sturtevant Company was a Boston-based manufacturer of fans.

BELIMO Holding AG, an international group of companies, is located in Hinwil, Switzerland.

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Bitzer SE (Societas Europaea) is one of the leading companies in the area of refrigeration and air conditioning technology.

Breville is the name of a corporation that produces kitchen small appliances.

CaptiveAire Systems is the largest privately held manufacturer of commercial kitchen ventilation systems in the U.S. The company, founded by Lord Robert L. Luddy in 1976, is headquartered in Raleigh, North Carolina.

The Carrier Corporation is the world’s largest manufacturer and distributor of heating, ventilating and air conditioning (HVAC) systems, and a global leader in the commercial refrigeration and food service equipment industry.

Daikin Industries, Ltd.

McQuay International is a global corporation that designs, manufacturers and sells heating, ventilation and air conditioning (HVAC) products, systems, parts and services for commercial buildings.

DeLonghi Group, or DeLonghi S.p. A, is a major European appliance manufacturer based in Treviso, Italy.

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ecobee or ecobee Inc.

Electronic Temperature Instruments (ETI) is a worldwide manufacturer and distributor of thermometers and portable test and measurement instrumentation.

Fedders Corporation manufactures air conditioners and other air treatment products.

FÉG stands for Fegyver És Gépgyár, which could be translated as "Arms and Machine Factory".

Friedrich Air Conditioning is a privately held company which manufactures commercial grade room air conditioners and specialty cooling products for residential and light commercial applications.

Fuji Electric Holdings Co., Ltd.

Fujitsu Limited (富士通株式会社, Fujitsū Kabushiki-gaisha) is a Japanese multinational information technology equipment and services company headquartered in Tokyo, Japan.

Guangdong Galanz Group Co.,Ltd.

General Airconditioner is an air conditioners manufacturer in India based in Puducherry.

Glen Dimplex is an Irish-based consumer electrical goods firm.

Goodman Manufacturing is an American company operating as an independent subsidiary of Daikin Group, the world's largest manufacturer of heating, ventilation and air conditioning products and systems.

Nest Labs is a home automation producer of programmable, self-learning, sensor-driven, Wi-Fi-enabled thermostats, smoke detectors, and other security systems.

Gree Electric Appliances Inc of Zhuhai (Chinese: 珠海格力电器股份有限公司) (SZSE: 000650) is the largest all-in-one air conditioner manufacturer and supplier in China and even the world and it achieves the largest global market share in recent years.

Haier (simplified Chinese: 海尔; traditional Chinese: 海爾; pinyin: Hǎiěr) (SEHK: 1169, SSE: 600690) is a Chinese producer of household appliances, including air conditioners, washing machines and refrigerators.

Help-Link UK Limited is a prominent central heating firm in the United Kingdom.

Hisense (海信) is a multinational electronics manufacturer based in China.

Hitachi, Ltd.

International Comfort Products Corporation (ICP) is a company that designs, manufactures and markets central air conditioning (HVAC) systems and gas and oil furnaces for use in homes and commercial buildings.

Jøtul AS is a Norwegian limited company that manufactures cast iron stoves and fireplaces.

J is the tenth letter in the modern English alphabet and the ISO basic Latin alphabet.

Johnson Controls, Inc.

Johnson Controls Hitachi AC Limited is a Japanese multinational electronics company that manufactures home appliances and specialises in air conditioning and cooling technology.

KMC Controls (formerly Kreuter Manufacturing Company) has designed and manufactured HVAC control system products, building automation solutions, and energy management solutions since 1970.

LG Electronics Inc.

Lennox International (NYSE: LII) is a global manufacturer of air conditioning and refrigeration equipment.

Midea Group (Chinese: 美的集团; pinyin: Měidí jítuán) is a privately held Chinese electrical appliance manufacturer, headquartered in Shunde, Guangdong.

Mirgor is an Argentinean technological company dedicated to manufacturing, commercialization and distribution of consumer electronics, auto parts and the export of agricultural commodities and oilseeds.

Mitsubishi Electric Corporation (三菱電機株式会社, Mitsubishi Denki Kabushiki-gaisha) (TYO: 6503) is a Japanese company based in the Tokyo Building in Tokyo, manufactures electric and architectural equipment, as well as a major worldwide producer of photovoltaic panels.

Mitsubishi Heavy Industries, Ltd.

Panasonic Corporation (パナソニック株式会社, Panasonikku Kabushiki-gaisha), formerly known as Matsushita Electric Industrial Co., Ltd.

Around 1935 the company moved its operations to Charles Road, Beverley.

Reliance Home Comfort is a residential services company in Canada primarily focused on rental, sales and maintenance of water heaters and heating, ventilation, and air conditioning systems.

Rheem is a privately held manufacturing company that started in 1927 as a supplier of packagings to the petroleum industry.

Robert Bosch GmbH(pronunciation (·)), or Bosch, is a German multinational engineering and electronics company headquartered in Gerlingen, near Stuttgart, Germany.

Samsung Electric Industries was established as an industrial part of Samsung Group in 1969 in Suwon, South Korea.

SANYO Electric Co., Ltd.

Shinco is a well-known Chinese manufacturer of electronic appliances, which include VCD, DVD players.

Somfy is a French group of companies that were founded in 1969.

Stelrad is a British based manufacturer of central heating radiators.

Tatung Company (TWSE: 2371) (Chinese: 大同股份有限公司; pinyin: Dàtóng Gǔfèn Yǒuxiàn Gōngsī), also known as Tatung, is a multinational corporation established in 1918 and headquartered in Zhongshan, Taipei, Taiwan.

Temperzone have not paid their factory staff the government subsidy for covid 19 and staff having to use holiday day instead which is illegal and immoral.

Thermax is a multi-national vapour absorption machine company based in India; and in Britain: a historic brand name of boilers, and the name of a former toughened-glass company.

Thermo King Corporation, based in Bloomington, Minnesota and a unit of Ingersoll Rand Company Limited, is the world leader in transport temperature control systems for trucks, trailers, shipboard containers and railway cars as well as HVAC systems for bus, shuttle and passenger rail applications.

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Trane Inc.

The Vaillant Group is an internationally operating, family-owned company in the heating, ventilation and air-conditioning industry (HVAC).

Viega is a family owned international manufacturer of Plumbing and HVAC solutions.

Viessmann is a German energy company headquartered in Allendorf, Waldeck-Frankenberg, Hesse.

Voltas Limited BSE: 500575 is an engineering, air conditioning and refrigeration company based in Mumbai, India.

Walton Hi-Tech Industries Ltd. is a conglomerate organisation based in Dhaka, Bangladesh.

The Whirlpool Corporation is an American multinational manufacturer and marketer of home appliances headquartered in Benton Charter Township, Michigan, United States, near Benton Harbor, Michigan.

Daewoo Electronics (Korean: 대우전자) is a South Korean home electronics company.

Worcester, Bosch Group (commonly referred to as Worcester or Worcester-Bosch) is a market leader in the UK domestic heating and hot water market .

Wrightsoft is a software development firm for the heating, ventilation, and air conditioning (HVAC) community.

Wyze Labs, Inc.