Harold Grinspoon

Harold Grinspoon is an American real estate developer who founded Aspen Square Management and a philanthropist who founded the Harold Grinspoon Foundation as well as its flagship programs PJ Library, JCamp180, and LIFE & LEGACY. After purchasing a single two-family house in Western Massachusetts as an investment property in the 1960s, he built one of the largest real estate corporations in the United States. In 2015, Grinspoon and his wife Diane Troderman signed the Giving Pledge, a commitment to dedicate at least half of his wealth to philanthropy.