Comprehensive foundation profile based on the most recent IRS Form 990 filing
Tandem Philanthropies is a philanthropic organization based in Menlo Park, California, with significant financial resources, holding assets of approximately $68.7 million. The foundation's annual expenses are around $3.2 million, while it generates a revenue of about $47.1 million. The organization focuses on philanthropy and foundations, funding initiatives in various cities across the United States, including Berkeley, Boston, Cambridge, Cincinnati, New York, Redwood City, Reston, San Francisco, and Tempe. It operates in several states such as Arizona, California, Massachusetts, New York, Ohio, and Virginia. The leadership team includes David L. Sze, who serves as the Director, Secretary, and CEO, Kathleen M. Donohue as the Director and CFO, and Zachary Herlick as an Audit Committee Member. Notably, the key personnel work part-time and do not receive compensation for their roles.
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Financials
+2.6% from previous year
8 grants awarded in 2024
Of total revenue spent on programs
Grants
| Purpose | Location | |||
|---|---|---|---|---|
| $1,500,000 | FIDELITY CHARITABLE GIFT FUND | TO PROVIDE GENERAL SUPPORT | Cincinnati, OH, US | 2022 |
| $600,000 | ARIZONA STATE UNIVERSITY FOUNDATION | TO PROVIDE GENERAL SUPPORT | Tempe, AZ, US | 2024 |
| $500,000 | UNITED STATES ENERGY FOUNDATION | TO PROVIDE GENERAL SUPPORT | San francisco, CA, US | 2023 |
| $500,000 | UNITED STATES ENERGY FOUNDATION | TO PROVIDE GENERAL SUPPORT | San francisco, CA, US | 2024 |
| $350,000 | EDUCATORS FOR EXCELLENCE INC | TO PROVIDE GENERAL SUPPORT | New york, NY, US | 2024 |
| $300,000 | ALDER GRADUATE SCHOOL OF EDUCATION | TO PROVIDE GENERAL SUPPORT | Redwood city, CA, US | 2024 |
| $250,800 | CERES | TO PROVIDE GENERAL SUPPORT | Boston, MA, US | 2024 |
| $250,000 | ACTIVATE GLOBAL INC | TO PROVIDE GENERAL SUPPORT | Berkeley, CA, US | 2023 |
| $250,000 | PRIME COALITION INC | TO PROVIDE GENERAL SUPPORT | Cambridge, MA, US | 2023 |
| $250,000 | ACTIVATE GLOBAL INC | TO PROVIDE GENERAL SUPPORT | Berkeley, CA, US | 2024 |
People
Compensation data from most recent available 990 forms
| Title | |||
|---|---|---|---|
DL
DAVID L SZE
| DIRECTOR, SECRETARY, AND CEO | $0 | 2024 |
KM
KATHLEEN M DONOHUE
| DIRECTOR AND CFO | $0 | 2024 |
ZH
ZACHARY HERLICK
| AUDIT COMMITTEE MEMBER | $0 | 2024 |
DAVID L SZE
DIRECTOR, SECRETARY, AND CEO
KATHLEEN M DONOHUE
DIRECTOR AND CFO
ZACHARY HERLICK
AUDIT COMMITTEE MEMBER
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Financial data sourced from IRS 990 forms via ProPublica Nonprofit Explorer
View on ProPublica Nonprofit ExplorerLast updated on August 25, 2025