· Private foundation
Siegel Family Endowment
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2020–2024.
Where the money goes
Your grants by size, and where they go.
The 91 grants below total $24,877,258 — the rows itemised in this filing. The $27,792,259 headline is the total grant expense reported on the return, so the remaining $2,915,001 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.
By grant size · FY2024
- Under $10k7 grants · $4k
- $10k–50k5 grants · $70k
- $50k–250k50 grants · $5.3M
- $250k+29 grants · $20M
| Recipient | Amount |
|---|---|
| Scratch Foundation | $2,500,000 |
| Robin Hood Foundation (Learning + Tech) | $2,165,585 |
| New Venture Fund | $1,750,000 |
| Massachusetts Institute of Technology | $1,287,500 |
| Cornell University (Public Interest Tech and Annual Giving) | $1,100,000 |
| Learning Landscapes Challenge (Fiscal Sponsor: Education Reimagined) | $1,000,000 |
| Georgia State University Research Foundation (Sponsorship: Learning Agency Tools Competition) | $1,000,000 |
| Pursuit | $1,000,000 |
| Center on Rural Innovation (CORI) | $1,000,000 |
| Khan Academy | $1,000,000 |
| The New York City Foundation for Computer Science Education Inc. (CSForAll) | $750,000 |
| Res Publica (Foundation for Civic AI) (eLab) | $500,000 |
| Inner City Advisors (ICA Fund) | $350,000 |
| Strada Collaborative (Roadtrip Nation) | $350,000 |
| Data & Society Research Institute | $300,000 |
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +26% since the first grant, against +13% for the ones you funded once.
66 repeat relationships — 37 still active in FY2024, 29 since wound down; 50 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 39% of grant dollars renewed an existing relationship; $13M went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- SFScratch Foundation4× · 2021–2024 · $6.5M · revenue +99%
Cornell University3× · 2021–2023 · $4.6M · revenue +23%- KAKHAN ACADEMY INC4× · 2021–2024 · $3.8M · revenue +98%
Funded once
- NVNew Venture Fund (PIT-UN) Public Interest Tech University Networkone grant, 2023 · $1.8M
- LSLeland Stanford Junior University (Stanford PACS)one grant, 2023 · $1.1M
- COCENTER ON RURAL INNOVATION INCgraduatedone grant, 2021 · $1.0M · revenue +156% · 53% of their budget
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
The common application is a not-for-profit membership organization of over 1,100 colleges and universities across the globe committed to access, equity, and integrity in the college admission process. every year, over 1.5 million students…
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…
The mission of the silicon schools fund is to improve education through supporting the launch of excellent new schools, improving academic instruction in existing schools, and by funding some of the boldest innovations in education…
The mission of the george washington university (gw) is to educate individuals in liberal arts, languages, sciences, learned professions, and other courses and subjects of study, and to conduct scholarly research and publish the findings…
The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.
To educate students to be ethical and socially responsible leaders in a global community.
Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…
Wentworth institute of technology is a nationally recognized private coeducational and residential university of higher education with a mission to empower, inspire and innovate through experiential learning with a core purpose of career…
For reference, the grantee most central to the portfolio’s shape is Transcend Inc and the most unlike its peers is Wgbh Educational Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 25 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 5% of your grantees by number, and just 2% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
117 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 117 of the 238 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Showing your 200 largest grantees by grant value.
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds Scratch Foundation ↗
- Who funds Massachusetts Institute of Technology ↗
- Who funds NEW VENTURE FUND ↗
- Who funds Cornell University ↗
- Who funds KHAN ACADEMY INC ↗
- Who funds PURSUIT TRANSFORMATION COMPANY INC ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds NYC FIRST Inc ↗
- Who funds ROBIN HOOD FOUNDATION ↗
- Who funds NEW YORK CITY FOUNDATION FOR COMPUTER SCIENCE EDUCATION INC D/B/A CSFORALL ↗
- Who funds DATA & SOCIETY RESEARCH INSTITUTE INC ↗
- Who funds CENTER FOR AMERICAN PROGRESS ↗
- Who funds THE CARNEGIE HALL CORPORATION ↗
- Who funds CENTER ON RURAL INNOVATION INC ↗
- Who funds TRANSCEND INC ↗
- Who funds University of Chicago ↗
- Who funds WASHINGTON CENTER FOR EQUITABLE GROWTH INC ↗
- Who funds NEW YORK HALL OF SCIENCE ↗
- Who funds TECHCONGRESS FOUNDATION ↗
- Who funds THE NATIONAL DESIGN ALLIANCE ↗
- Who funds FEEDBACK LABS ↗
- Who funds The Knowledge House Fellowship Inc ↗
- Who funds MOZILLA FOUNDATION ↗
- Who funds GROVE COLLECTIVE FOUNDATION ↗
- Who funds THE ASPEN INSTITUTE INC ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Gates Foundation · The William & Flora Hewlett Foundation · The Ford Foundation · Silicon Valley Community Foundation · The Goldman Sachs Charitable Gift Fund · New Schools Fund · New Venture Fund · Jewish Communal Fund · The New York Community Trust · Tides Foundation · The Robert Wood Johnson Foundation · John S and James L Knight Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
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Find your warmest path to Siegel Family Endowment through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.