Bill Koch (businessman)

William Ingraham Koch (; born May 3, 1940) is an American billionaire businessman, sailor, and collector. His boat was the winner of the America's Cup in 1992. Koch's net worth was at $1.8 billion in 2019.
David Koch (1940−2019) was his twin brother. His other brothers are Frederick R. Koch (1933−2020) and Charles Koch (born 1935).