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Grey Rocks Foundation Inc at a glance

· 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.

$2.9M
Granted FY2024still arriving
97
Grants FY2024still arriving
19
States reached
$510k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0195% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Education$4.9MRecreation & Sports$2.9MArts & Culture$2.1MEnvironment$1.9MYouth Development$580kMembership Benefit$578kHealth$412kInternational$298kOther$0
02FY2024 · 97 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k45 grants · $143k
  • $10k–50k38 grants · $649k
  • $50k–250k12 grants · $1.4M
  • $250k+2 grants · $762k
$10,000
Median grant
19
States reached
$66M
Total assets
Largest grants
RecipientAmount
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
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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 its grants land in higher-need ZIPs.

area typical 9%Wounded Warrior Project: $2k → 14%ABILITY PLUS: $500 → 11%CRADLES TO CRAYONS: $7k → 8%CRADLES TO CRAYONS: $2k → 8%CRADLES TO CRAYONS: $2k → 8%WEBSTER HOUSE: $2k → 7%YMCA CAMP BELKNAP: $130k → 9%YMCA CAMP BELKNAP: $112k → 9%YMCA CAMP BELKNAP: $90k → 9%YMCA CAMP BELKNAP: $28k → 9%YMCA Camp Belknap: $5k → 9%YMCA CAMP BELKNAP: $3k → 9%GRAFTON COUNTY SENIOR CITIZENS COUNCIL: $10k → 10%SEACOAST CHILD ADVOCACY CENTER: $10k → 5%SEACOAST CHILD ADVOCACY CENTER: $10k → 5%SEACOAST CHILD ADVOCACY CENTER: $5k → 5%COMMUNITY SERVINGS: $2k → 16%COMMUNITY SERVINGS: $2k → 16%COMMUNITY SERVINGS: $2k → 16%COMMUNITY SERVINGS: $2k → 16%COMMUNITY SERVINGS: $2k → 16%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

ME
VT
NH
WA
MT
IL
MI
NY
MA
PA
NJ
CT
RI
CA
UT
VA
MD
TN
NC
AL
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

96%of every dollar goes to organizations it has funded before.
$14M · 104 repeat orgs$596k to everyone else

Grantees it renews have grown median revenue +35% since the first grant, against +25% for those 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

Re-uppedFunded once

Organizations

104
42

Total granted

$14M
$383k

Median revenue growth · since first grant

+35%
+25%

Still filing today

66%
67%

New vs renewed · share of each year

In FY2024, 93% of grant dollars renewed an existing relationship; $213k went to new ones.

50%100%’17’18’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’20’21’22’23’24
EducationEnvironmentHealthArts & CultureAnimalsHuman ServicesOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • US
    United States Ski Team Foundation
    7× · 2017–2024 · $2.0M · revenue +69%
  • HS
    HOLDERNESS SCHOOL
    5× · 2020–2024 · $750k · revenue +1%
  • CHARLES RIVER WATERSHED ASSOCIATION INC
    7× · 2017–2024 · $656k · revenue +129%

Funded once

  • TN
    The Nature Conservancy NH
    one grant, 2017 · $100k
  • EM
    Elkhorn Marine Conservancy Inc
    one grant, 2023 · $50k · revenue +25%
  • SH
    SPORTS HUMANITARIAN GROUP INCgraduated
    one grant, 2017 · $25k · revenue +119%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
President and Trustees of Bates College

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…

Education
2
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
3
Trustees of Dartmouth College

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.

Education
4
University of New Haven

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…

Education
5
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
6
Massachusetts Institute of Technology

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.

Education
7
Harvard Conservation Trust

To preserve the unique character and natural resources of harvard.

Environment
8
Saint Anselm College

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…

Education
9
Northfield Mount Hermon School

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.

Education
10
Marine Biological Laboratory

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…

Science & Tech
11
The Waldorf School Inc

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.

Education
12
United States Naval Institute

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.

—
How this is measured
The grantee most central to the portfolio’s shape is Walnut Hill Center for the Arts Inc; 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.
04the grantee network

109 grantees tracked through their own filings, 2017–2026.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

5
Load-bearing (≥25% of a budget)
22
Early backer (in before they grew)
107/109
Grantees still filing
81/109
Grew since first funded

Where the money sits, by cause and then by grantee

DARTMOUTH COLLEGE: $2,146,442 · OtherDARTMOUTH COLLEGEMUSEUM OF FINE ARTS BOSTON: $1,155,000 · OtherMUSEUM OF FINE ARTS BOSTONUNITED STATES ROWING ASSOCIATION: $601,529 · OtherUNITED STATES ROWING ASSOCIATIONCLAN MACLEAN ASSOCIATION: $578,185 · OtherCLAN MACLEAN ASSOCIATIONNH HISTORICAL SOCIETY: $323,000 · Other+91 more: $2,682,325 · Other+91 moreHOLDERNESS SCHOOL: $750,000 · EducationHOLDERNESS SCHOOLPHILLIPS EXETER ACADEMY: $450,000 · EducationPHILLIPS EXETER AC…THE FESSENDEN SCHOOL: $315,000 · EducationTHE FESSENDEN SCHO…ST PAUL'S SCHOOL: $227,500 · EducationST PAUL'S SCHOOLPresident and Fellows of Harvard College: $154,500 · EducationPresident and Fell…WHEATON COLLEGE: $87,000 · EducationSTEPPINGSTONE FOUNDATION INC: $81,000 · Education+13 more: $339,417 · Education+13 moreUnited States Ski Team Foundation: $2,049,424 · Recreation & SportsUnited States Ski…STONINGTON COMMUNITY ROWING INC: $100,000 · Recreation & Sports+5 more: $78,000 · Recreation & SportsCHARLES RIVER WATERSHED ASSOCIATION INC: $655,750 · EnvironmentCHARLES RIVE…Appalachian Mountain Club: $491,599 · EnvironmentAppalachian …NEWFOUND LAKE REGION ASSOCIATION: $232,932 · EnvironmentNEWFOUND LAK…THE MONTANA LAND RELIANCE: $89,000 · EnvironmentTHE MONTANA …+7 more: $100,500 · Environment+7 moreYMCA CAMP BELKNAP INC: $367,000 · Human ServicesSEACOAST CHILD ADVOCACY CENTER INC: $25,000 · Human Services+6 more: $35,500 · Human ServicesANIMAL RESCUE LEAGUE OF BOSTON: $115,000 · AnimalsMASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $89,500 · AnimalsREWILD: $30,000 · AnimalsBLUE OCEAN SOCIETY FOR MARINE CONSERVATION: $30,000 · AnimalsLIVE AND LET LIVE FARM INC: $12,500 · Animals+3 more: $16,000 · AnimalsNHSCOT: $96,000 · Arts & CulturePILCHUCK GLASS SCHOOL: $95,000 · Arts & CultureMuseum of Glass: $50,000 · Arts & Culture+6 more: $21,750 · Arts & Culture
Other$7,486,481Education$2,404,417Recreation & Sports$2,227,424Environment$1,569,781Human Services$427,500Animals$293,000Arts & Culture$262,750

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$10k$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetUnited States Ski Team Foundation: $2,049,424 over 7y, 6.1% of budgetHOLDERNESS SCHOOL: $750,000 over 5y, 1.9% of budgetCHARLES RIVER WATERSHED ASSOCIATION INC: $655,750 over 7y, 13% of budgetUNITED STATES ROWING ASSOCIATION: $601,529 over 3y, 1.5% of budgetAppalachian Mountain Club: $491,599 over 6y, 0.7% of budgetPHILLIPS EXETER ACADEMY: $450,000 over 6y, 0.1% of budgetYMCA CAMP BELKNAP INC: $367,000 over 6y, 2.4% of budgetTHE FESSENDEN SCHOOL: $315,000 over 7y, 0.3% of budgetNEWFOUND LAKE REGION ASSOCIATION: $232,932 over 6y, 20% of budgetST PAUL'S SCHOOL: $227,500 over 6y, 0.1% of budgetTHE WHITE MOUNTAIN SCHOOL ST MARY'S IN THE MOUNTAINS: $215,000 over 5y, 2.4% of budgetUniversity of Michigan: $195,000 over 6y, 31% of budgetPresident and Fellows of Harvard College: $154,500 over 6y, 0.0% of budgetJACKSON HISTORICAL SOCIETY: $153,000 over 6y, 27% of budgetANIMAL RESCUE LEAGUE OF BOSTON: $115,000 over 7y, 0.1% of budgetTURTLE RIDGE FOUNDATION INC MILLER-WHITE: $103,000 over 6y, 19% of budgetMILL REEF FUND: $101,000 over 7y, 6.1% of budgetSTONINGTON COMMUNITY ROWING INC: $100,000 over 1y, 13% of budgetNHSCOT: $96,000 over 6y, 5.5% of budgetPILCHUCK GLASS SCHOOL: $95,000 over 5y, 1.3% of budgetCHILDVOICE INTERNATIONAL: $90,000 over 4y, 2.9% of budgetMASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $89,500 over 7y, 0.0% of budgetTHE MONTANA LAND RELIANCE: $89,000 over 6y, 0.2% of budgetWHEATON COLLEGE: $87,000 over 6y, 0.0% of budgetCIRCLE PROGRAM: $83,000 over 6y, 3.2% of budgetSTEPPINGSTONE FOUNDATION INC: $81,000 over 5y, 1.1% of budgetThe Pine School Inc: $65,000 over 3y, 0.4% of budgetTHE PREEMPTIVE LOVE COALITION: $60,000 over 3y, 0.4% of budgetTHE FENN SCHOOL: $56,500 over 6y, 0.1% of budgetCOMMUNITY ROWING INC: $54,500 over 4y, 0.5% of budgetNew Hampshire Charitable Foundation: $50,050 over 4y, 0.0% of budgetCAMP TECUMSEH INC: $50,000 over 5y, 0.7% of budgetElkhorn Marine Conservancy Inc: $50,000 over 1y, 14% of budgetMuseum of Glass: $50,000 over 5y, 0.3% of budgetTeach for America Inc: $50,000 over 7y, 0.0% of budgetMAYHEW: $44,000 over 5y, 0.7% of budgetDartmouth-Hitchcock Clinic: $42,750 over 3y, 0.0% of budgetNATIONAL ROWING FOUNDATION INC: $40,000 over 3y, 0.8% of budgetWALNUT HILL CENTER FOR THE ARTS INC: $39,370 over 5y, 0.0% of budgetKIMBALL UNION ACADEMY: $38,000 over 6y, 0.0% of budgetDONORSCHOOSEORG: $37,047 over 4y, 0.0% of budgetTHE NATICK COMMUNITY ORGANIC FARM INC: $31,500 over 3y, 3.1% of budgetLakes Region Conservation Trust: $31,000 over 5y, 3.9% of budgetREWILD: $30,000 over 2y, 0.0% of budgetSoutheast Land Trust of New Hampshire: $30,000 over 3y, 0.1% of budgetBLUE OCEAN SOCIETY FOR MARINE CONSERVATION: $30,000 over 2y, 4.9% of budgetSPORTS HUMANITARIAN GROUP INC: $25,000 over 1y, 1.5% of budgetSEACOAST CHILD ADVOCACY CENTER INC: $25,000 over 3y, 1.9% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, 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 ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

New Hampshire Charita…Fidelity FoundationBoston Foundation IncCogswell Benevolent T…Tosa FoundationMadelaine G Vonweber …Ibm International Fou…GivenGain Foundation …Bangor Savings Bank F…American Tower Corpor…Eastern Bank Foundati…Combined Jewish Phila…
New Hampshire Charitable FoundationNH32.4× affinity17 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Grey Rocks Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Grey Rocks Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 180%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 1%
  • 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
no gov moneyreceives it· size = income
18get no government money at all
23report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 159 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Grey Rocks’ filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home