· Private foundation
The Grubman Compton Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- $10k–50k3 grants · $60k
- $50k–250k2 grants · $111k
- $250k+2 grants · $692k
| Recipient | Amount |
|---|---|
| US NAVAL ACADEMY ALUMNI ASSOCIATION & FOUNDATION | $391,667 |
| OVERLOOK FOUNDATION | $300,000 |
| GOLDMAN SACHS Philanthropy Fund | $61,432 |
| LEADVILLE TRAIL 100 LEGAC | $50,000 |
| CHRIST CHURCH SUMMIT | $25,000 |
| NORTHFIELD MT HERMON SCHOOL | $20,000 |
| Marine Corps Scholarship Foundation | $15,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY18–23, $9k) land where the poverty rate runs at 7%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
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 +95% since the first grant, against +37% for the ones you funded once.
22 repeat relationships — 4 still active in FY2025, 18 since wound down; 2 grantees were first funded in FY2025 (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 FY2025, 49% of grant dollars renewed an existing relationship; $407k 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
- UNUS NAVAL ACADEMY FOUNDATION INC6× · 2017–2023 · $2.8M · revenue +41%
- OFOVERLOOK FOUNDATION9× · 2017–2025 · $1.5M · revenue +121%
- IGISLAND GROWN INITIATIVE LTD2× · 2019–2020 · $150k · revenue +257%
Funded once
- HSHEAD STRONG PROJECT INCone grant, 2022 · $50k · revenue -32%
- MCMARINE CORPS RELIEF SOCIETYone grant, 2022 · $50k
- RIRESOLVE INCgraduatedone grant, 2021 · $50k · revenue +49%
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 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.
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.
To improve the lives of people through innovative scientific and engineering research.
The purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…
The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
The wildlands trust works throughout southeastern massachusetts to conserve and permanently protect native habitats, farmland, and lands of high ecologic and scenic value that serve to keep our communities healthy and our residents…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
To advocate for policy changes by governments and corporations in order to preserve ocean life and return the oceans to their former abundance.
The Marine Biological Laboratory (MBL) is a world-renowned center for biological discovery and training that is notably affiliated with more than 60 Nobel Prize winners. Research is conducted by full-time faculty as well as hundreds of the…
The governors island corporation, doing business as the trust for governors island, is the 501(c)(3) not-for-profit organization created by the city of new york and charged with the planning, redevelopment and ongoing operations of 150…
At the internet society foundation, we focus on funding initiatives that strengthen the internet in function and reach so that it can effectively serve all people. our work advances the vision of the internet society (isoc): the internet…
The mission of the foundation is to raise funds to support island health and its commitment to community health in and around anacortes, washington.
For reference, the grantee most central to the portfolio’s shape is Good Sports Inc and the most unlike its peers is Fairmount Fire Company No 1. 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 30 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) — 3% of your grantees by number, and just 0% 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.
36 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. 36 of the 55 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 US NAVAL ACADEMY FOUNDATION INC ↗
- Who funds OVERLOOK FOUNDATION ↗
- Who funds UNITED STATES NAVAL ACADEMY ALUMNI ASSOC ↗
- Who funds ISLAND GROWN INITIATIVE LTD ↗
- Who funds ISLAND HOUSING TRUST CORPORATION ↗
- Who funds LEADVILLE TRAIL 100 LEGACY INC ↗
- Who funds GS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INC ↗
- Who funds Nature For Justice ↗
- Who funds HEAD STRONG PROJECT INC ↗
- Who funds RESOLVE INC ↗
- Who funds GOOD SPORTS INC ↗
- Who funds CONSERVATION INTERNATIONAL FOUNDATION ↗
- Who funds INTERNATIONAL MOUNTAIN BICYCLING ASSOCIATION - COLORADO ↗
- Who funds GUNNISON VALLEY HEALTH FOUNDATION ↗
- Who funds FRIENDS OF MVYRADIO INC ↗
- Who funds MARINE CORPS SCHOLARSHIP FOUNDATION INC ↗
- Who funds LEGACY FOUNDATION INC ↗
- Who funds Trustees of Tufts College ↗
- Who funds HIGH LINE CANAL CONSERVANCY ↗
- Who funds READWORKSINC ↗
- Who funds THE BROOKLYN HISTORICAL SOCIETY ↗
- Who funds BREAKTHROUGH T1D ↗
- Who funds WILDERNESS WORKSHOP ↗
- Who funds FAIRMOUNT FIRE COMPANY NO 1 ↗
- Who funds Gather ↗
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: Colorado Gives Foundation · The Goldman Sachs Charitable Gift Fund · The Ayco Charitable Foundation · Verizon Foundation · Morgan Stanley Global Impact Funding Trust Inc · Jpmorgan Chase Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Vanguard Charitable Endowment Program · National Philanthropic Trust · The Pfizer Foundation Inc · Charities Aid Foundation America · American Online Giving Foundation Inc
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.
Government reliance of your grantees
Every dot is one organization The Grubman Compton Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
- Bridges Outreach Inc — 25% of income from government
- Trustees of Tufts College — 13% of income from government
- Island Housing Trust Corporation — 1% of income from government
- Friends of Mvyradio Inc — 1% of income from government
- Island Grown Initiative Ltd — 0% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.