Overbrook Foundation

The Overbrook Foundation, established in 1948 and headquartered in New York City, is a private family foundation with $217.5 million in assets (FY2024) that has distributed over $240 million to more than 2,000 nonprofits across its history. It operates exclusively through two program areas — Environment and Human Rights — making it one of the most tightly focused major foundations in progressive philanthropy.

The foundation's giving philosophy is articulated through five core values: Be Bold (embrace innovative leaders and strategic risk), Be Impactful (measure success rigorously), Be a Partner (recognize systemic change requires collaboration), Be Accountable (maintain transparency), and Be Humble (stay open to learning from communities). These values translate directly into a preference for organizations that combine policy advocacy with grassroots organizing and that center marginalized communities as both beneficiaries and leaders.

Critically, Overbrook does not accept unsolicited grant proposals. This is an invitation-only funder — but the foundation explicitly encourages organizations in its focus areas to share news, ideas, and updates with staff. This makes informal engagement through the contact form at overbrook.org/contact-us or the main phone line (212) 603-9996 the primary on-ramp for organizations seeking a relationship.

The grantee portfolio reveals clear organizational preferences: national advocacy organizations with proven policy track records (Movement Voter Fund, Demos, Democracy Docket Legal Fund), grassroots community groups with deep local ties (UPROSE, Louisiana Bucket Brigade, Bold Futures NM), legal organizations advancing civil rights (Lambda Legal, Transgender Law Center, Lawyers' Committee for Civil Rights Under Law), and international conservation groups with Latin American focus (Rainforest Alliance, Wildlife Conservation Society, Global Greengrants Fund). Virtually every top grantee received 3–6 consecutive grants, confirming that Overbrook builds long-term relationships rather than one-time awards.

First-time applicants should avoid project-specific proposals and instead lead with organizational track record, theory of change, and field leadership. The foundation's commitment to directing the majority of grantmaking to marginalized communities — with at least 25% allocated to social justice strategies including advocacy, organizing, and civic engagement — should be woven explicitly into any narrative submitted to program staff.

Total giving has ranged from $10.8M to $14.5M annually across the reported period. FY2023 total giving was $13.9M (grants paid directly: $9.0M); FY2022 was $14.5M (grants paid: $8.5M); FY2021 was $12.3M (grants paid: $6.7M); FY2020 was $12.7M (grants paid: $8.4M); FY2019 was $10.8M (grants paid: $6.7M). The gap between total giving and grants paid reflects pass-through distributions via donor-advised funds managed by Community Funds Inc. ($4.82M across five transactions), which functions as a DAF vehicle rather than a direct program recipient.

Excluding DAF pass-throughs, median direct grant: $31,550; average: ~$56,379 (dataset of 456 grants); range: $250 to $1.4M. The high-end outliers are exceptional — the practical working range for most programmatic grants runs $50,000–$275,000, with the sweet spot around $75,000–$150,000 per year. Multi-year renewals at $75,000–$100,000/year are the most common pattern among established grantees.

Breaking down the portfolio by program area: - Democracy and voting rights (~40% of programmatic grantmaking): Movement Voter Fund ($3.1M total), Demos ($300K), Youth Engagement Fund ($200K), Fair Elections Center ($200K), Voter Formation Project ($200K), Democracy Docket Legal Fund ($200K), Proteus Fund ($800K via Rights Faith & Democracy Collaborative) - Reproductive rights and gender justice (~25%): National Network of Abortion Funds ($275K), Groundswell Fund ($275K), National Asian Pacific American Women's Forum ($310K), Abortion Care Network ($210K), Forward Together ($165K), National Advocates for Pregnant Women ($150K) - Environment and climate (~25%): Plastic Solutions Fund ($700K), Louisiana Bucket Brigade ($350K), Mongabay ($375K), Center for Biological Diversity ($180K), Sunrise Movement Education Fund ($180K), Project Drawdown ($150K), As You Sow ($225K) - LGBTQ rights (~10%): Lambda Legal ($183K), Transgender Law Center ($200K), Mosaic ($225K)

Geographic concentration reflects the national advocacy orientation: New York accounts for 32% of grants in the dataset, California 23%, and Washington D.C. 14%. Approximately 12% of grants support Latin America-focused international programs. General operating support appears in virtually every top-grantee purpose description — restricted project grants are the rare exception.

Overbrook occupies a distinctive mid-tier position among family foundations focused on environment, human rights, and social justice. The foundations below represent its closest strategic peers — all invitation-only, all progressive, all maintaining long-term grantee relationships.

Overbrook is significantly larger than niche foundations like Arca and New World but operates with far less capital than Wellspring Philanthropic Fund, the dominant funder in the reproductive rights space. Its annual giving of ~$13.9M places it in direct peer territory with Wallace Global Fund, with which it shares notable portfolio overlap — both fund Movement Voter Fund, environmental justice organizations, and Latin American human rights defenders.

The most important differentiator is Overbrook's simultaneous investment across all four domains (environment, democracy, reproductive rights, and LGBTQ rights) rather than specializing in one. This breadth makes it an unusually valuable anchor funder for organizations at the intersection of these issues, but it also means competition within each domain is stiff — Overbrook maintains active relationships with the most prominent organizations in each field.

The most consequential recent development was the leadership transition from Stephen Foster — who served as President & CEO for roughly two decades and earned $670,649 in his final partial year — to Eric Weingartner, who assumed the CEO role in November 2022 at a reported compensation of $485,000. This transition represents the foundation's first major leadership change in at least 15 years. Noah Leff serves as CFAO at $359,000, rounding out the senior leadership team.

On the governance side, the board has evolved: Joyce Fensterstock now chairs the board, with Julie Graham (Vice Chair & Secretary), Arthur G. Altschul Jr. (Vice Chair & Treasurer), and Isaiah Orozco (Vice Chair) filling senior board roles alongside a broader family-connected board.

Staffing signals include an open Program Associate role on the Human Rights team and the launch of a fellowship program for NYC graduate students interested in philanthropy — both pointing to investment in team capacity and pipeline development beyond direct grantmaking.

From the WITNESS organization, the foundation renewed a multi-year grant confirming continued Latin American human rights documentation work. The Defending Democracy sub-initiative has visibly expanded, with Movement Voter Fund receiving $3.1M across eight grants — the largest non-DAF relationship in the portfolio.

Asset growth from $192M (FY2020) to $217.5M (FY2024) despite consistent ~$13–14M annual grantmaking reflects strong investment returns, positioning Overbrook to sustain or modestly increase its grantmaking pace through 2025–2026.

1. Never submit an unsolicited proposal. Overbrook explicitly does not accept them. A cold proposal signals you have not done your homework and will close, not open, doors. The correct first move is relationship-building.

2. Start with an informal inquiry via the contact form. At overbrook.org/contact-us, submit a brief 2–3 paragraph introduction: who you are, what you do, why it aligns with either the Environment or Human Rights program, and what kind of conversation you're seeking. Attach nothing. Keep the phone number (212) 603-9996 as a backup.

3. Target exactly one program area. Environment and Human Rights are distinct portfolios managed by different staff. Environment covers climate, conservation, forests, coastal ecosystems, plastics, and toxics. Human Rights covers democracy and voting rights, reproductive justice, LGBTQ rights, and Latin American human rights defenders. Do not try to bridge both unless your mission genuinely lives at that intersection — it reads as unfocused.

4. Lead with general operating support. The portfolio is dominated by unrestricted multi-year operating grants. Do not ask for project funding as your opening request. Frame your organization's strengths, leadership, theory of change, and position in the field.

5. Mirror the five values explicitly. Use the foundation's own language — Bold, Impactful, Partner, Accountable, Humble — in your framing. Show how your organization embodies strategic risk-taking, rigorous outcome measurement, collaborative field-building, transparency, and community responsiveness.

6. Center marginalized communities clearly. Overbrook has publicly committed 25%+ of grantmaking to social justice strategies. Organizations that center BIPOC communities, low-income populations, or frontline-affected communities as leaders — not just beneficiaries — will resonate more strongly.

7. Demonstrate organizational maturity. Top grantees are typically 5–15 years old with established advocacy infrastructure and national or regional field influence. Emphasize organizational history, leadership tenure, and peer recognition.

8. When formally invited: You will receive a portal password. Submit an organizational overview, program narrative addressing theory of change and outcomes, evaluation approach, and a complete organizational budget. A program officer call or site visit before a final decision is standard practice for new relationships.