Greenberg also serves as a member of the President's Council on International Activities of Yale University. He is on the board of directors of the International Rescue Committee and is active in a number of other civic and charitable organizations. He is a former trustee of the American Museum of Natural History. He also serves on the board of the Manhattan Institute for Policy Research. He is chairman and chief executive officer of C.V. Starr, a diversified financial services firm that is named for the founder of AIG, Cornelius Vander Starr. He joined C.V. Starr as vice president in 1960 and was given the additional responsibilities of president of American Home Assurance Company in 1962. He was elected director of C.V. Starr in 1965, chairman and chief executive officer in 1968 and continues in that role. Greenberg is also the chairman of the board of directors and managing director of Starr International Company Inc. C.V. Starr and Starr International are collectively known as the Starr Companies. Greenberg was named the most connected business executive in New York by Crain's New York Business. As chairman of The Starr Foundation, Greenberg oversees the disbursement of major financial support to academic, medical, cultural, and public policy institutions. He is also the former chairman of The National Interest. The Maurice "Hank" Greenberg Scholarship, administered in his name by the US-China Education Trust, supports the studies of ten Chinese students from low-income families each year at Yunnan University. In February 2014 Greenberg led a group through Starr Investment Holdings that acquired health insurance claims processor MultiPlan Inc for around $4.4 billion. This group, on May 5, 2016, sold MultiPlan Inc. to Hellman & Friedman for approximately $7.5 billion. Incident with Mahmoud Ahmadinejad Greenberg gained visibility when he clashed with Mahmoud Ahmadinejad over the Iranian president's denial of the Holocaust. On September 20, 2006, the Council on Foreign Relations hosted a small meeting of select council members with Ahmadinejad, who began by saying that we need to "continue studying" whether it happened. According to David E. Sanger, Chief Washington Correspondent for The New York Times, Greenberg listened for fifteen minutes while Ahmadinejad continued talking about the Palestinians, World War II, and if the Holocaust killings had happened at all. Sanger writes, "Then Hank Greenberg, who had been on a slow boil through the evening, spoke up. He had been a young soldier at the end of