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Massachusetts · 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 FY2024(still arriving)
97
Grants FY2024
90
Organizations funded FY2023
16%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$10,000
Largest grant, FY2024
$510,000
Organizations funded a year
38 to 96
FY2017 to FY2023
States reached, FY2024
19
Total assets, FY2024
$66M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 16% of the organizations Grey Rocks Foundation Inc funded were first-time grantees, receiving 10% of its grant dollars.

New vs renewed · share of each year

In FY2023, 90% of grant dollars renewed an existing relationship; $167k went to new ones.

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

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

’18’20’21’22’23
Arts & CultureEducationEnvironmentHealthAnimalsHuman 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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2024still arriving94$2.9M11%
FY202390$1.7M16%
FY202283$1.4M12%
FY202164$1.9M13%
FY202096$2.7M43%
FY201846$2.1M76%
FY201738$1.7Mn/a
95% 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

Where its grants go

Grant dollars by states, across the years we hold.

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

Top grantees

Largest recipients by total granted, FY2017 to FY2024, and the share of each one’s budget the grants supplied at peak.

Show all 108 grantees
All grantees of Grey Rocks Foundation Inc by total granted
GranteeTotal grantedYearsShare of their budget
United States Ski Team Foundation$2,049,42476%
Holderness School$750,00052%
Charles River Watershed Association Inc$655,750713%
United States Rowing Association$601,52931%
Appalachian Mountain Club$491,59961%
Phillips Exeter Academy$450,00060%
YMCA Camp Belknap Inc$367,00062%
The Fessenden School$315,00070%
Newfound Lake Region Association$232,932620%
St Paul's School$227,50060%
The White Mountain School St Mary's in the Mountains$215,00052%
University of Michigan$195,000631%
Jackson Historical Society$153,000627%
Animal Rescue League of Boston$115,00070%
Turtle Ridge Foundation Inc Miller-White$103,000619%
Mill Reef Fund$101,00076%
Stonington Community Rowing Inc$100,000113%
Nhscot$96,00066%
Pilchuck Glass School$95,00051%
Childvoice International$90,00043%
Massachusetts Society for the Prevention of Cruelty to Animals$89,50070%
The Montana Land Reliance$89,00060%
Wheaton College$87,00060%
Circle Program$83,00063%
Steppingstone Foundation Inc$81,00051%
The Pine School Inc$65,00030%
The Preemptive Love Coalition$60,00030%
The Fenn School$56,50060%
Community Rowing Inc$54,50040%
Camp Tecumseh Inc$50,00051%
Elkhorn Marine Conservancy Inc$50,000114%
Museum of Glass$50,00050%
Teach for America Inc$50,00070%
Mayhew$44,00051%
Dartmouth-Hitchcock Clinic$42,75030%
National Rowing Foundation Inc$40,00031%
Walnut Hill Center for the Arts Inc$39,37050%
Kimball Union Academy$38,00060%
Donorschooseorg$37,04740%
The Natick Community Organic Farm Inc$31,50033%
Lakes Region Conservation Trust$31,00054%
Rewild$30,00020%
Southeast Land Trust of New Hampshire$30,00030%
Blue Ocean Society for Marine Conservation$30,00025%
Sports Humanitarian Group Inc$25,00011%
Seacoast Child Advocacy Center Inc$25,00032%
Sequana Inc$25,0001n/a
Kensington Social Library$25,0001n/a
Corporation of Gonzaga University$22,50060%
University of California San Francisco Foundation$20,00010%
Friends of Casa Bernabe$20,00012%
Direct Relief$20,00010%
Middlesex School$17,50060%
City Year Inc$17,50060%
Vanderbilt University$17,50060%
Heronfield Academy$15,00020%
Votewater Inc$15,00026%
Alzheimer's Disease Research Foundation$15,00030%
Valencia College Foundation Inc$12,50050%
Alice Ferguson Foundation Inc$12,50050%
Children's Hospital Corporation$12,50010%
Live and Let Live Farm Inc$12,50040%
Squashbusters Inc$12,50050%
The Surfrider Foundation$12,00010%
Cradles to Crayons Inc$11,00030%
LuMind IDSC Foundation$10,50050%
Loon Preservation Committee$10,00050%
The American Chestnut Foundation$10,00010%
Slim Baker Foundation for Outdoor Education Inc$10,000149%
The International Museum of World War II Inc$10,00011%
Fairsport Inc$10,00012%
Squam Lakes Association$10,00011%
The Hpv and Anal Cancer Foundation$10,00014%
Grafton County Senior Citizens Council Inc$10,00010%
Community Servings Inc$10,00050%
Wellesley Education Foundation Inc$8,50042%
New England Wildlife Center Inc$7,50050%
Trout Unlimited Inc$7,50050%
Martin County Healthy Start Coalition Inc$7,50011%
Doctors Outreach Inc$7,000182%
Youth Enrichment Services Inc$7,00020%
Museum of Science$6,40040%
Silver Lining Mentoring Inc$5,00010%
Lionfish University$5,0001n/a
City Harvest Inc$5,00010%
Newport Art Museum and Art Association$5,00010%
New England Ski Museum Inc$5,00050%
Catholic Schools Foundation Inc$5,00010%
Human Relations Service Inc$4,00020%
Mothers' Milk Bank Northeast Inc$4,00020%
Weston Historical Society Inc$3,60042%
Berwick Academy$2,50010%
Worcester Art Museum$2,50010%
Polo Historical Society$2,20051%
Medecins Sans Frontieres USA Inc$2,00010%
Webster House$2,0001n/a
Ronald McDonald House Global$2,00010%
Weston Forest and Trail Association Inc$2,00011%
Wounded Warrior Project Inc$2,00010%
Hebron Historical Society$1,850460%
Newfound Pathways$1,0001n/a
Bonefish & Tarpon Trust Inc$1,0001n/a
International Skiing History Association$1,00020%
Row New York Inc$1,0001n/a
Ability Plus Inc$50010%
Landmark College Inc$50010%
Umass Memorial Health - Milford Regional Medical Center Inc$25010%
Second Congregational Church$2001n/a

What it could do for these grantees

Plus 48 recipients with no EIN on record ($5.2M), not named here.

Where it is load-bearing

Grey Rocks Foundation Inc supplied at least a quarter of the budget for 5 of its grantees at some point. The chart plots its 100 largest grantees; load-bearing ones sit top left.

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 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 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 budgetCorporation of Gonzaga University: $22,500 over 6y, 0.0% of budgetUniversity of California San Francisco Foundation: $20,000 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 100.

Nonprofits that may fit its grantmaking

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 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.

Compare Grey Rocks Foundation Inc with peer funders

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.

About Grey Rocks Foundation Inc

How much does Grey Rocks Foundation Inc give?
Grey Rocks Foundation Inc reported 97 grants totaling $2,918,776 in its FY2024 IRS filing. It funded between 38 and 96 organizations a year over FY2017 to FY2023.
What does Grey Rocks Foundation Inc fund?
By grant dollars over FY2017 to FY2024, its largest causes are Education (33%), Recreation & Sports (20%), Arts & Culture (14%).
Who are Grey Rocks Foundation Inc's largest grantees?
By total granted over FY2017 to FY2024: United States Ski Team Foundation ($2.0M), Holderness School ($750k), Charles River Watershed Association Inc ($656k).
Does Grey Rocks Foundation Inc fund new organizations?
In FY2023, 16% of the organizations it funded were first-time grantees.
Does Grey Rocks Foundation Inc accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Grey Rocks Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include New Hampshire Charitable Foundation, Fidelity Foundation, Boston Foundation Inc.
Where is Grey Rocks Foundation Inc based?
Grey Rocks Foundation Inc is based in MA.

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

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