Work at this foundation?
Claim this profile to manage it and see interest from grant seekers.
Zoom Foundation is a private trust based in GREENWICH, CT. The foundation received its IRS ruling in 2001. The principal officer is Cummings & Lockwood. It holds total assets of $1.3B. Annual income is reported at $477.6M. Total assets have grown from $306.1M in 2011 to $1.3B in 2024. The foundation is governed by 4 officers and trustees. Tax records are available from 2016 to 2024. The foundation primarily funds organizations in Connecticut and Ohio. According to available records, Zoom Foundation has made 11 grants totaling $305.5M, with a median grant of $12M. The foundation has distributed between $89.9M and $122M annually from 2021 to 2024. Grantmaking activity was highest in 2023 with $122M distributed across 4 grants. Individual grants have ranged from $150K to $89.8M, with an average award of $27.8M. The foundation has supported 5 unique organizations. Grants have been distributed to organizations in Ohio and Connecticut and California. Contributions to this foundation are tax-deductible.
The Zoom Foundation is one of American philanthropy's most deliberately opaque family foundations — a design choice that shapes every aspect of how grant seekers must approach it. Founded in 2001 by Stephen F. Mandel Jr., founder of Lone Pine Capital hedge fund, and his wife Susan Z. Mandel, the Greenwich, Connecticut institution controls $1.25 billion in assets as of FY2024 and has distributed more than $500 million since inception. Its giving philosophy centers on "innovative change efforts that have high potential for sustainable impact" — a phrase that signals high-leverage, systems-change work over direct-service models.
The foundation does not accept unsolicited inquiries or proposals under any circumstances. This is not a processing constraint — it is a fundamental operating principle. The Mandels proactively identify and build multi-year relationships with organizational leaders they consider exceptional. The path to Zoom Foundation funding runs exclusively through network positioning and earned introductions, not through proposal submissions.
Three focus areas govern grantmaking: Education, Environment, and Democracy. Within education, the Mandels favor public school access, education equity, and youth poverty interventions — demonstrated through Stephen's national board role at Teach for America and a $50 million+ pledge to Blue Meridian Partners. Within environment, they prioritize science-based climate policy and advocacy, not direct conservation; both Mandels hold board roles at Environmental Defense Fund, and Susan co-founded Moms Clean Air Force. Democracy funding remains the most private pillar, with Campaign Legal Center as the only publicly confirmed recipient.
Organizations that have successfully entered the Zoom orbit share several traits: exceptional and well-networked leadership; evidence-based or entrepreneurially innovative models; geographic presence in Connecticut or national reach in TFA/EDF-adjacent sectors; and natural alignment across multiple focus pillars simultaneously. The Connecticut Project — a direct-grant anchor at $17 million — models this perfectly: Connecticut-rooted, working at the intersection of environmental policy and civic engagement.
Because the Mandels route most giving through Fidelity Charitable Gift Fund, the foundation's actual beneficiary network is far larger than public 990 filings suggest. Documented end recipients include Harlem Children's Zone, Success Academy, Echoing Green Fellowship, Columbia Law School's climate program, and multiple New York and Connecticut cultural institutions — all secured through relationship rather than application.
Zoom Foundation's financial profile combines massive scale, substantial year-to-year volatility, and a deliberate opacity strategy that makes traditional grant-pattern analysis challenging.
Asset trajectory: Assets grew from $431 million in FY2013 to $1.25 billion in FY2024 — nearly a 3× increase over eleven years — driven primarily by Lone Pine Capital's long-short equity performance. The steepest single-year gain was FY2024, when assets rose 49% from $841 million, powered by $422 million in realized investment gains.
Annual giving (grants paid): - FY2024: $30.4 million - FY2023: $63.2 million - FY2022: $61.0 million - FY2021: $97.4 million (peak year) - FY2020: $89.9 million - FY2019: $68.4 million - Five-year average (2019–2023): ~$76 million/year
This volatility is structural: giving levels are driven by realized investment gains rather than a fixed 5% payout schedule. FY2024's sharp drop to $30.4 million — despite $450 million in total revenue — suggests deliberate reserve-building rather than a program contraction.
DAF routing: Approximately 94% of tracked 990 disbursements flow to Fidelity Charitable Gift Fund, used as a pass-through donor-advised fund. Total recorded Fidelity transfers: $287.7 million across five documented grants. This structure makes final recipient tracking impossible through standard IRS data.
Direct-grant portfolio (remaining 6%): - The Connecticut Project Inc: $17.0 million (environmental initiatives + civic programs) - Center for Contemporary Documentation Inc: $500,000 - Kosciuszko Inc: $175,000 (civic projects in Connecticut) - Social Impact Fund: $150,000
Direct grants range from $150,000 to $12,000,000. Through the DAF, grants to ultimate recipients likely reach the $25 million–$50 million range, consistent with the Blue Meridian pledge and the $25 million Teach for America endowment gift documented in public sources.
Geographic concentration: Connecticut dominates direct grants. Ohio appears in 990 geography primarily as Fidelity's registered state. Through DAF distributions, national organizations — particularly in education and environment — receive the bulk of actual dollars.
The following five foundations share Zoom Foundation's asset range ($1.1–$1.3 billion) and NTEE classification (Philanthropy & Grantmaking), offering a useful strategic benchmark:
| Foundation | Assets | Est. Annual Giving | Primary Focus | Application Process |
|---|---|---|---|---|
| Zoom Foundation (CT) | $1.25B | $30–97M/yr | Environment, Education, Democracy | Invitation only, no unsolicited proposals |
| Foundation For A Just Society (NY) | $1.29B | ~$40M/yr | Gender justice, LGBTQ rights, global health | Invitation only |
| Joyce Foundation (IL) | $1.29B | ~$60M/yr | Education, environment, democracy, gun violence prevention | Competitive, open letter of inquiry |
| Carl and Marilynn Thoma (TX) | $1.21B | ~$30M/yr | Education, arts, human services | Invitation only |
| Surdna Foundation (NY) | $1.16B | ~$25M/yr | Sustainable environments, thriving cultures, youth | Open LOI process |
| Hobson Lucas Family Foundation (CA) | $1.24B | N/A | Arts, film preservation | Invitation only |
Among this peer set, the Joyce Foundation is the most strategically relevant comparator: it funds the same three pillars (education, environment, democracy) at a comparable scale and operates an open, competitive grant process. A Joyce Foundation grant in an overlapping program area is strong social proof for Zoom trustees and should be highlighted prominently in any relationship-building conversation. Surdna Foundation offers a more accessible entry point via its formal LOI process — organizations that secure Surdna funding in environment or youth development gain credibility that transfers directly to Zoom cultivation efforts. Neither Carl and Marilynn Thoma nor Hobson Lucas Family Foundation operate in Zoom's policy-reform orientation.
The defining recent development is the rapid growth of the foundation's asset base — from $841 million in FY2023 to $1.25 billion in FY2024, a 49% single-year increase, driven by $422 million in realized gains from Lone Pine Capital's equity positions. This asset surge coincided with a sharp reduction in grants paid ($30.4M in FY2024 vs. $63.2M in FY2023), suggesting deliberate reserve-building ahead of a potential larger philanthropic initiative rather than a programmatic pullback.
The foundation also received $12 million in new contributions in FY2024 — its first outside contribution since $4 million in FY2022 — indicating ongoing personal wealth transfers from the Mandels into the foundation vehicle.
No staff changes, new program announcements, or public grant disclosures have appeared through early 2026. Since executive director Meghan Lowney departed in 2020, only Stephen F. Mandel Jr. and Susan Z. Mandel serve as trustees, with no officer compensation. The foundation's longstanding no-press policy remains firmly in place.
The most recent disclosed direct-grant activity is the multi-year relationship with The Connecticut Project Inc, which has received at least $17 million across three documented grants — for environmental initiatives, civic programs, and general charitable support — indicating the foundation is deepening Connecticut civic infrastructure commitments regardless of broader giving fluctuations. No new grant partners have been publicly identified since the 2022 Inside Philanthropy investigation.
Because Zoom Foundation accepts no unsolicited proposals, every effective strategy is a relationship strategy. The following tips are specific to this funder's operating model and documented preferences.
Lead with leadership biography. The foundation's stated approach is to "partner with exceptional leaders." Before any outreach, ensure your executive director and board chair profiles reflect the same entrepreneurial, evidence-oriented culture the Mandels value. Academic credentials from Yale or comparable institutions, prior Teach for America involvement, and experience at Environmental Defense Fund–affiliated organizations are documented trust signals.
Activate network intermediaries. The clearest documented pathways into the Zoom Foundation circle are: - Teach for America — Stephen Mandel sits on the national board; TFA alumni and staff carry significant credibility - Blue Meridian Partners — Zoom is a $50M+ pledging partner; relationships with Blue Meridian grantees provide warm introductions - Environmental Defense Fund — both Mandels have board affiliations; EDF's network is a direct entry point for climate organizations - Moms Clean Air Force — Susan Mandel co-founded this; environmental health organizations focused on families are a natural fit - Campaign Legal Center — the primary identified democracy grantee; connections here open the democracy pillar
Connecticut geography is a differentiator. If your organization serves Connecticut — particularly New Haven, Greenwich, or Hartford — lead with this. The foundation's only documented direct grants outside the DAF structure are Connecticut-based. A new Connecticut-focused program or partnership is worth highlighting explicitly.
Use the foundation's language. The Mandels' own formulations — "innovative change efforts," "entrepreneurial approach," "sustainable impact," "practical innovation" — should appear in any materials shared. Avoid service-delivery metrics as primary framing; emphasize policy change, systems-level outcomes, and scalable models.
Timing and initial contact. Relationship-building inquiries (not proposals) can be directed to info@zoomfoundation.org or (203) 989-9044. The foundation's registered office is at 2 Sound View Drive, Greenwich, CT 06830, care of Cummings & Lockwood (legal counsel). Any first communication should be a brief, one-paragraph introduction requesting a relationship conversation — never a funding ask.
Plan for a long runway. The Mandels' anchor relationships take years to develop. Budget 18–36 months for cultivation before any grant is realistic.
Create a free Granted account to download this report — includes application checklist, full financial data, and all grantees.
Already have an account? Sign in to download.
Smallest Grant
$1M
Median Grant
$1M
Average Grant
$32.5M
Largest Grant
$95.4M
Based on 3 grants from the most recent 990-PF filing.
No program descriptions are available for this foundation. Many private foundations report program activities in their annual 990-PF filings — check the Tax Filings section below for the most recent filing.
Zoom Foundation's financial profile combines massive scale, substantial year-to-year volatility, and a deliberate opacity strategy that makes traditional grant-pattern analysis challenging. Asset trajectory: Assets grew from $431 million in FY2013 to $1.25 billion in FY2024 — nearly a 3× increase over eleven years — driven primarily by Lone Pine Capital's long-short equity performance. The steepest single-year gain was FY2024, when assets rose 49% from $841 million, powered by $422 million in re.
Zoom Foundation has distributed a total of $305.5M across 11 grants. The median grant size is $12M, with an average of $27.8M. Individual grants have ranged from $150K to $89.8M.
The Zoom Foundation is one of American philanthropy's most deliberately opaque family foundations — a design choice that shapes every aspect of how grant seekers must approach it. Founded in 2001 by Stephen F. Mandel Jr., founder of Lone Pine Capital hedge fund, and his wife Susan Z. Mandel, the Greenwich, Connecticut institution controls $1.25 billion in assets as of FY2024 and has distributed more than $500 million since inception. Its giving philosophy centers on "innovative change efforts th.
Zoom Foundation is headquartered in GREENWICH, CT. While based in CT, the foundation distributes grants to organizations across 3 states.
| Name | Title | Compensation | Benefits | Total |
|---|---|---|---|---|
| Stephen F Mandel Jr | TRUSTEE | $0 | $0 | N/A |
| STEPHEN F MANDEL JR | TRUSTEE | $0 | $0 | N/A |
| SUSAN Z MANDEL | TRUSTEE | $0 | $0 | N/A |
| Susan Z Mandel | TRUSTEE | $0 | $0 | N/A |
Total Giving
$30.4M
Total Assets
$1.3B
Fair Market Value
$2B
Net Worth
$1.3B
Grants Paid
$30.4M
Contributions
$12M
Net Investment Income
$431.9M
Distribution Amount
$74.9M
Total: $1.2B
Total Grants
11
Total Giving
$305.5M
Average Grant
$27.8M
Median Grant
$12M
Unique Recipients
5
Most Common Grant
$58.5M
of 2024 grantees were first-time recipients
| Recipient | Location | Amount | Year |
|---|---|---|---|
| Fidelity Charitable Gift FundTO FUNDCHARITABLEPROGRAMS | Cincinnati, OH | $63.2M | 2024 |
| THE CONNECTICUT PROJECT INCTO FUNDENVIRONMENTALINITIATIVES | BRIDGEPORT, CT | $12M | 2024 |
| CENTER FOR CONTEMPORARY DOCUMENTATION INCTO FUND CHARITABLEPROGRAMS | GREENWICH, CT | $500K | 2024 |
| KOSCIUSZKO INCTO FUNDCIVIC PROJECTSIN CONNECTICUT | GREENWICH, CT | $175K | 2024 |
| Social Impact FundTO FUNDCHARITABLEPROGRAMS | Los Angeles, CA | $150K | 2021 |
MYSTIC, CT
WESTPORT, CT
GREENWICH, CT