Dan Gilbert is a Michigan-based billionaire entrepreneur, founder of Rocket Companies (formerly Quicken Loans) and majority owner of the Cleveland Cavaliers. Through his investment vehicle Rock Ventures, he backs early-stage and growth companies in consumer, media, e-commerce and sports-tech. Gilbert’s portfolio includes investments in platforms like StockX and VC-funds such as Courtside Ventures, demonstrating his interest in the creator-economy and culture-driven businesses.