Jay Robert "J. B." Pritzker (born January 19, 1965) is an American businessman, philanthropist, and politician who is the Governor-elect of Illinois. He is a private business owner based in Chicago and a managing partner and co-founder of the Pritzker Group. He is a member of the Pritzker family who own the Hyatt hotel chain, and has an estimated personal net worth of $3.5 billion.
Pritzker was the Democratic nominee for Governor of Illinois in the 2018 gubernatorial election. He defeated Republican incumbent Bruce Rauner in the general election on November 6, 2018. As governor, he will hold more private wealth than any other governor in U.S. history and will be the second-wealthiest U.S. politician to have ever held office, after Michael Bloomberg.
J.B. Pritzker was born in California, to a Jewish family prominent in business and philanthropy during the late 20th century. The Pritzkers are consistently named near the top of the Forbes "America's Richest Families" list since its 1982 inception. One of three children of Sue (née Sandel) and Donald Pritzker, elder siblings are Penny Pritzker, 38th United States Secretary of Commerce, and Anthony Pritzker.