Gilbert, the founder of Quicken Loans, Rock Ventures, Rock Gaming and owner of the Cleveland Cavaliers — among other smaller companies and teams — is worth an estimated $3.5 billion, up from $1.5 billion in March 2012, because of the extraordinary growth of his privately held mortgage financing company. Forbes reports that the nation’s largest online lender closed $70 billion in mortgages last year, up from $30 billion in 2011.
Gilbert is also said to be purchasing Greektown Casino in Detroit, while being one of the main investors of a light rail system that will hope to improve the economic conditions of the rustbelt town.
When compared to the rest of the world, Gilbert, 51, slots in 354th overall. This compares to Cleveland Browns owner Jimmy Haslam who is said to be worth $1.8 billion, leaving him off of the top 500 as ranked by Forbes.