Eric Lefkofsky is an American entrepreneur and businessman, best known as the co-founder and CEO of Tempus, a technology company that uses data and artificial intelligence to improve cancer care. He has also co-founded several other companies, including Groupon, an online marketplace for local businesses, and Lightbank, a venture capital firm. Lefkofsky is also recognized for his philanthropic efforts, particularly in education and medical research. He established the Lefkofsky Family Foundation, which supports various initiatives aimed at improving the quality of life in communities. His work has made a significant impact in both the business and charitable sectors.