J.B. Pritzker

His businesses have been chugging merrily along, with Pritzker Group Venture Capital (which J.B. runs with his L.A.-based brother Tony) recently doubling down on existing investments in promising cloud-computing companies. Plus: The local tech startup scene he’s been nurturing for years had a banner 2014, with a record $1.6 billion in funding raised, per Built in Chicago. Read more in our 2014 profile, “The Other Mayor of Chicago.”