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Carrier Corporation
- Founder: Willis Carrier
- Country: USA
- Year Founded: 1915
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Daikin Industries, Ltd.
- Founder: Akira Yamada
- Country: Japan
- Year Founded: 1924
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Mitsubishi Electric
- Founder: Mitsubishi Group (no single founder)
- Country: Japan
- Year Founded: 1921
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Johnson Controls
- Founder: Warren S. Johnson
- Country: USA
- Year Founded: 1885
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Lennox International Inc.
- Founder: Dave Lennox
- Country: USA
- Year Founded: 1895
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Trane Technologies plc
- Founder: James Trane
- Country: USA
- Year Founded: 1885
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Gree Electric Appliances Inc.
- Founder: Dong Mingzhu
- Country: China
- Year Founded: 1989
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Samsung Electronics
- Founder: Lee Byung-chul (Samsung Group, diversified into electronics later)
- Country: South Korea
- Year Founded: 1969 (Samsung Electronics)
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Panasonic Corporation
- Founder: Konosuke Matsushita
- Country: Japan
- Year Founded: 1918
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LG Electronics
- Founder: Koo In-hwoi
- Country: South Korea
- Year Founded: 1958
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York International Corporation
- Founder: Frank S. York
- Country: USA
- Year Founded: 1874
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Fujitsu General
- Founder: Fujitsu Group (no single founder)
- Country: Japan
- Year Founded: 1936
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Hitachi Cooling & Heating
- Founder: Namihei Odaira
- Country: Japan
- Year Founded: 1910
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Sharp Corporation
- Founder: Tokuji Hayakawa
- Country: Japan
- Year Founded: 1912
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Toshiba Corporation
- Founder: Hisashige Tanaka
- Country: Japan
- Year Founded: 1875
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Haier Group
- Founder: Zhang Ruimin
- Country: China
- Year Founded: 1984
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Whirlpool Corporation
- Founder: Lou Upton and Emory Upton
- Country: USA
- Year Founded: 1911
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Electrolux
- Founder: Axel Wenner-Gren
- Country: Sweden
- Year Founded: 1919
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Sharp Corporation
- Founder: Tokuji Hayakawa
- Country: Japan
- Year Founded: 1912
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Midea Group
- Founder: He Xiangjian
- Country: China
- Year Founded: 1968
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Ingersoll Rand
- Founder: Simon Ingersoll
- Country: USA
- Year Founded: 1871
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Rheem Manufacturing Company
- Founder: Richard and Donald Rheem
- Country: USA
- Year Founded: 1925
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Goodman Manufacturing
- Founder: Harold V. Goodman
- Country: USA
- Year Founded: 1975
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Amana Corporation
- Founder: George Foerstner
- Country: USA
- Year Founded: 1934
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Danfoss
- Founder: Mads Clausen
- Country: Denmark
- Year Founded: 1933
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Emerson Electric Co.
- Founder: John W. Emerson
- Country: USA
- Year Founded: 1890
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Sanyo Electric Co., Ltd.
- Founder: Toshio Iue
- Country: Japan
- Year Founded: 1947
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Sunbeam Corporation
- Founder: John K. Stewart and Thomas J. Clark
- Country: USA
- Year Founded: 1897
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Liebherr Group
- Founder: Hans Liebherr
- Country: Germany
- Year Founded: 1949
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Williams Refrigeration
- Founder: George Harold Williams
- Country: UK
- Year Founded: 1980
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Marley Engineered Products
- Founder: Dr. Willis H. Carrier
- Country: USA
- Year Founded: 1948
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Bosch Thermotechnology
- Founder: Robert Bosch
- Country: Germany
- Year Founded: 1886
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Viessmann Group
- Founder: Johann Viessmann
- Country: Germany
- Year Founded: 1917
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Stulz GmbH
- Founder: Arnold Stulz
- Country: Germany
- Year Founded: 1947
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Airedale International Air Conditioning Ltd.
- Founder: Peter Midgley
- Country: UK
- Year Founded: 1974
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York Air Conditioning and Refrigeration
- Founder: Frank S. York
- Country: USA
- Year Founded: 1874
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Honeywell International Inc.
- Founder: Albert Butz and Mark C. Honeywell
- Country: USA
- Year Founded: 1906
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Dunham-Bush
- Founder: Walter A. Dunham and Philo Dunham
- Country: USA
- Year Founded: 1894
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Ebac
- Founder: John Elliott
- Country: UK
- Year Founded: 1972
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Hokkaido Air System Co., Ltd.
- Founder: Kiyoshi Hasegawa
- Country: Japan
- Year Founded: 1969
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Zamil Air Conditioners
- Founder: Abdullah Al Zamil
- Country: Saudi Arabia
- Year Founded: 1974
- IMI Hydronic Engineering
- Founder: Albert K. Gifford
- Country: USA
- Year Founded: 1895
- Nortek Global HVAC
- Founder: Ely R. Callaway Jr.
- Country: USA
- Year Founded: 1919
- Lennox International Inc.
- Founder: Dave Lennox
- Country: USA
- Year Founded: 1895
- Williams Refrigeration
- Founder: George Harold Williams
- Country: UK
- Year Founded: 1980
- Friedrich Air Conditioning
- Founder: Ed Friedrich
- Country: USA
- Year Founded: 1883
- Blue Star Limited
- Founder: Mohan T. Advani
- Country: India
- Year Founded: 1943
- Tempstar
- Founder: Charles Lewis Heil
- Country: USA
- Year Founded: 1894
- Unico System
- Founder: Bob and Don Unico
- Country: USA
- Year Founded: 1985
- Watts Water Technologies
- Founder: Joseph E. Watts
- Country: USA
- Year Founded: 1874
- Founder of TOP 100 Tools