Harold Grinspoon Foundation

Harold Grinspoon Foundation

Harold Grinspoon established the foundation in 1991 after building Aspen Square Management into a national apartment owner. His wife Diane Troderman joined as co-founder. The entity focuses on Jewish literacy and community building rather than direct operating investments. The foundation holds a 13.51 percent allocation to private equity within its endowment. Its real estate exposure occurs through 100 percent ownership of Aspen Square Management, which controls 14,000 to 20,000 apartment units across 14 to 16 states. Additional holdings include multiple multifamily assets acquired between 2022 and 2023. Geographic reach centers on the United States with grant programs extending to Israel via Keren Grinspoon Israel. The foundation lists 925 million dollars in assets. It maintains three related philanthropic entities and participates in The Giving Pledge and Jewish Funders Network. A July 2025 exhibition appearance at the Norman Rockwell Museum marked its most recent documented public activity. Governance remains within the Grinspoon family through direct ownership of Aspen Square Management and trustee appointments that include both relatives and external advisors such as Deborah Hochberg.