Andrew Florance founded CoStar Group in 1987 and has served as its Chief Executive Officer since inception, leading the company from a start-up through its 1998 initial public offering to its position today as an S&P 500 and NASDAQ-100 company. He has identified, negotiated, and closed more than 40 acquisitions across 14 countries, building CoStar into a global provider of real estate data, analytics, online marketplaces, and 3D digital twin technology.