Mads Clausen (21 October 1905 – 27 August 1966) born in Elsmark, parish of Havnbjerg, municipality of Nordborg in Denmark, was a Danish industrialist and founder of Danfoss in 1933.Married to Dorthea (Bitten) Emma Clausen (1912-) in 1939 and had five children;Karin Clausen (1940)Bente Clausen (1942)Jørgen Mads Clausen (1948) current Chairman of the Board of DanfossPeter Johan Mads Clausen (1949)Henrik Mads Clausen (1953)