· Private foundation
Overdeck Family Foundation Inc
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 88 grants below total $52,496,415 — the rows itemised in this filing. The $63,805,533 headline is the total grant expense reported on the return, so the remaining $11,309,118 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 $10k5 grants · $27k
- $10k–50k4 grants · $90k
- $50k–250k32 grants · $5.4M
- $250k+47 grants · $47M
| Recipient | Amount |
|---|---|
| National Museum of Mathematics | $8,368,600 |
| Robin Hood Foundation | $2,922,666 |
| CommonLit, Inc. | $2,916,000 |
| Khan Academy | $2,004,000 |
| Arizona State University Foundation For a New American University | $1,841,000 |
| Reach Out & Read Inc | $1,607,000 |
| TalkingPoints | $1,575,000 |
| Lena Foundation | $1,543,000 |
| Leading Educators Inc | $1,506,000 |
| Zearn Inc | $1,500,000 |
| Tools of the Mind | $1,315,000 |
| President and Fellows of Harvard College | $1,250,000 |
| Empirical Resolution Inc., dba Quill.org | $1,206,000 |
| Learn Fresh Education Co | $1,005,000 |
| National Inventors Hall of Fame | $1,005,000 |
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 +25% since the first grant, against +22% for the ones you funded once.
87 repeat relationships — 50 still active in FY2024, 37 since wound down; 32 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, 84% of grant dollars renewed an existing relationship; $7.5M 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
- NMNATIONAL MUSEUM OF MATHEMATICS5× · 2020–2024 · $11M · revenue +225% · 31% of their budget
- KAKHAN ACADEMY INC5× · 2020–2024 · $8.4M · revenue +48%
- ZZEARN5× · 2020–2024 · $7.0M · revenue +63%
Funded once
- AFAccelerate, for Accelerated Learningone grant, 2023 · $3.6M
- GRGSU Research Foundation, Inc.one grant, 2022 · $1.0M
- NSNEW SCHOOLS FUNDone grant, 2020 · $700k · revenue -36%
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.
To create and inspire better ways to give every student an educational foundation for lifelong success. we imagine a world where every student attends a school that meets them where they are, adapts to the unique ways they learn, and…
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
New teacher center (ntc) is a national nonprofit organization dedicated to improving outcomes for all students by accelerating teacher and school leader effectiveness. from preschool through high school, (continued on schedule o)
The Center is dedicated to providing tools the nation needs to lead the world in education & training in a swiftly globalizing world economy.
As the largest association of independent schools, nais co-creates the future of education by uniting and empowering our community. we do this through thought leadership, research, creation and curation of resources, and direct…
The peak school seeks to ignite a passion for learning, to develop students of diverse talents and backgrounds who think critically and act with integrity, and to graduate compassionate, confident, capable students who will embrace their…
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…
Out teach's mission is to inspire and prepare today's elementary students to explore the wonders of science and become tomorrow's innovators. out teach works to ensure that all studentsregardless of race, zip code, or access to…
The chicago public education fund (the fund) is a nonprofit organization that improves public schools in chicago by investing in the talented educators who lead them.
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
See Schedule ODeans for Impact supports educator-preparation programs to bring the science of learning into teaching practice; partners with policymakers to ensure pathways into teaching are accessible, practice-based, and…
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…
For reference, the grantee most central to the portfolio’s shape is Expanded Schools Inc and the most unlike its peers is Liberty Science Center. 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) — 2% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.7% 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.
133 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. 133 of the 184 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
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 ROBIN HOOD FOUNDATION ↗
- Who funds NATIONAL MUSEUM OF MATHEMATICS ↗
- Who funds KHAN ACADEMY INC ↗
- Who funds ZEARN ↗
- Who funds LENA FOUNDATION ↗
- Who funds WATERFORD INSTITUTE INC ↗
- Who funds New York University ↗
- Who funds COMMONLIT INC ↗
- Who funds LEADING EDUCATORS INC ↗
- Who funds LEARN FRESH EDUCATION CO ↗
- Who funds TALKINGPOINTS ↗
- Who funds REACH OUT AND READ INC ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds TRANSCEND INC ↗
- Who funds NURSE-FAMILY PARTNERSHIP ↗
- Who funds AFTERSCHOOL ALLIANCE ↗
- Who funds CENTERING HEALTHCARE INSTITUTE INC ↗
- Who funds ARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY ↗
- Who funds LIBERTY SCIENCE CENTER ↗
- Who funds NATIONAL INVENTORS HALL OF FAME INC ↗
- Who funds PUBLIC MEDIA GROUP OF SOUTHERN CALIFORNIA ↗
- Who funds THE BELL FOUNDATION INC ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds EMPIRICAL RESOLUTION INC ↗
- Who funds Edreports Org Inc ↗
- Who funds COMMUNITY FOUNDATION OF NEW JERSEY ↗
- Who funds MUSEUM OF SCIENCE ↗
- Who funds TIDES CENTER ↗
- Who funds The Rand Corporation ↗
- Who funds JOHNS HOPKINS UNIVERSITY ↗
- Who funds NEW VENTURE FUND ↗
- Who funds PowerMyLearning Inc ↗
- Who funds ROCKEFELLER PHILANTHROPY ADVISORS INC ↗
- Who funds STEM NEXT OPPORTUNITY FUND ↗
- Who funds THROUGHLINE LEARNING ↗
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 · Carnegie Corporation of New York · Walton Family Foundation Inc · Charles and Lynn Schusterman Family Foundation · Robin Hood Foundation · WK Kellogg Foundation · The Heising-Simons Foundation · Silicon Valley Community Foundation · The William & Flora Hewlett Foundation · Charles and Helen Schwab Foundation · New Schools Fund · Michael & Susan Dell 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.
Warm introductions · Powered by PlinthPlus
How do I get to Overdeck Family Foundation Inc?
Find your warmest path to Overdeck Family Foundation Inc 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.