· Private foundation
Grey Rocks 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k45 grants · $143k
- $10k–50k38 grants · $649k
- $50k–250k12 grants · $1.4M
- $250k+2 grants · $762k
| Recipient | Amount |
|---|---|
| HOLDERNESS SCHOOL | $510,000 |
| UNITED STATES ROWING ASSOCIATION | $251,529 |
| DARTMOUTH COLLEGE | $201,675 |
| WHITE MOUNTAIN SCHOOL | $175,000 |
| PHILLIPS EXETER ACADEMY | $172,500 |
| YMCA CAMP BELKNAP | $130,000 |
| CLAN MACLEAN ASSOCIATION | $127,298 |
| US SKI AND SNOWBOARD FOUNDATION | $120,600 |
| JACKSON NH HISTORICAL SOCIETY | $110,000 |
| STONINGTON COMMUNITY ROWING CENTER | $100,000 |
| NEWFOUND LAKE REGION ASSOCIATION | $62,932 |
| ST PAUL'S SCHOOL | $60,000 |
| TUCK SCHOOL AT DARTMOUTH | $55,000 |
| CHARLES RIVER WATERSHED ASSN | $50,000 |
| NEWTON WELLESLEY HOSPITAL | $47,500 |
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 (FY17–24, $428k) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 91% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-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 +34% since the first grant, against +18% for the ones you funded once.
104 repeat relationships — 84 still active in FY2024, 20 since wound down; 10 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, 93% of grant dollars renewed an existing relationship; $213k 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
- USUnited States Ski Team Foundation7× · 2017–2024 · $2.0M · revenue +69%
- HSHOLDERNESS SCHOOL5× · 2020–2024 · $750k · revenue +1%
CHARLES RIVER WATERSHED ASSOCIATION INC7× · 2017–2024 · $656k · revenue +129%
Funded once
- TNThe Nature Conservancy NHone grant, 2017 · $100k
- EMElkhorn Marine Conservancy Incone grant, 2023 · $50k · revenue +25%
- SHSPORTS HUMANITARIAN GROUP INCone grant, 2017 · $25k · revenue -11%
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.
Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
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…
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
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.
To preserve the unique character and natural resources of harvard.
Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…
Northfield mount hermon educates the head, heart and hands of our students. we engage their intellect, compassion, and talents, empowering them to act with humanity and purpose.
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 waldorf school of lexington nurtures each child's curiosity, ingenuity, and love of learning so that they can meet the future with wonder, confidence, and resilience.
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.
For reference, the grantee most central to the portfolio’s shape is Walnut Hill Center for the Arts Inc and the most unlike its peers is Kensington Social Library. 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 42 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) — 1% 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.
109 grantees tracked through their own filings, 2017–2026.
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 2017–2026, not grant rows in a single year — so this will not match the grant count on the cover. 109 of the 159 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 United States Ski Team Foundation ↗
- Who funds HOLDERNESS SCHOOL ↗
- Who funds CHARLES RIVER WATERSHED ASSOCIATION INC ↗
- Who funds UNITED STATES ROWING ASSOCIATION ↗
- Who funds Appalachian Mountain Club ↗
- Who funds PHILLIPS EXETER ACADEMY ↗
- Who funds YMCA CAMP BELKNAP INC ↗
- Who funds THE FESSENDEN SCHOOL ↗
- Who funds NEWFOUND LAKE REGION ASSOCIATION ↗
- Who funds ST PAUL'S SCHOOL ↗
- Who funds THE WHITE MOUNTAIN SCHOOL ST MARY'S IN THE MOUNTAINS ↗
- Who funds University of Michigan ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds JACKSON HISTORICAL SOCIETY ↗
- Who funds ANIMAL RESCUE LEAGUE OF BOSTON ↗
- Who funds TURTLE RIDGE FOUNDATION INC MILLER-WHITE ↗
- Who funds MILL REEF FUND ↗
- Who funds STONINGTON COMMUNITY ROWING INC ↗
- Who funds NHSCOT ↗
- Who funds PILCHUCK GLASS SCHOOL ↗
- Who funds CHILDVOICE INTERNATIONAL ↗
- Who funds MASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
- Who funds THE MONTANA LAND RELIANCE ↗
- Who funds WHEATON COLLEGE ↗
- Who funds CIRCLE PROGRAM ↗
- Who funds STEPPINGSTONE FOUNDATION INC ↗
- Who funds The Pine School Inc ↗
- Who funds THE PREEMPTIVE LOVE COALITION ↗
- Who funds THE FENN SCHOOL ↗
- Who funds COMMUNITY ROWING INC ↗
- Who funds New Hampshire Charitable Foundation ↗
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: New Hampshire Charitable Foundation · Fidelity Foundation · Boston Foundation Inc · Cogswell Benevolent Trust · Tosa Foundation · Madelaine G Vonweber Trust Todd Fahey & William Tucker Co-Trustees · Ibm International Foundation · GivenGain Foundation USA · Bangor Savings Bank Foundation · American Tower Corporation Foundation Inc · Eastern Bank Foundation · Combined Jewish Philanthropies of Greater Boston 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 Grey Rocks Foundation Inc 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.
- Alice Ferguson Foundation Inc — 34% of income from government
- Community Servings Inc — 12% of income from government
- City Year Inc — 11% of income from government
- Silver Lining Mentoring Inc — 10% of income from government
- Children's Hospital Corporation — 10% of income from government
- Charles River Watershed Association Inc — 8% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Community Rowing Inc — 2% of income from government
- Cradles to Crayons Inc — 2% of income from government
- Appalachian Mountain Club — 1% of income from government
- Worcester Art Museum — 1% of income from government
- Landmark College Inc — 1% of income from government
- New England Wildlife Center Inc — 1% of income from government
- Museum of Science — 0% of income from government
- Wheaton College — 0% of income from government
- Animal Rescue League of Boston — 0% of income from government
- The Fessenden School — 0% of income from government
- Steppingstone Foundation Inc — 0% of income from government
- The Pine School Inc — 0% of income from government
- Wounded Warrior Project Inc — 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.
Warm introductions · Powered by PlinthPlus
How do I get to Grey Rocks Foundation Inc?
Find your warmest path to Grey Rocks 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.