Skip to content
The Rock Foundation at a glanceAlso receives grants: funding profile →

· Private foundation

The Rock Foundation

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.

$2.1M
Granted FY2024still arriving
16
Grants FY2024still arriving
10
States reached
$750k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
01100% classified

What it funded, over time

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

Health$3.7MEducation$806kInternational$540kArts & Culture$290kPhilanthropy$180kHuman Services$71kAnimals$35kRecreation & Sports$35kOther$0
02FY2024 · 16 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k1 grant · $5k
  • $10k–50k5 grants · $95k
  • $50k–250k8 grants · $976k
  • $250k+2 grants · $1.0M
$76,000
Median grant
10
States reached
$19M
Total assets
Largest grants
RecipientAmount
MEMORIAL SLOAN-KETTERING CANCER CENTER$750,000
INSEAD MANAGEMENT EDUCATION FOUNDATION$275,000
INTERNATIONAL MEDICAL CORPS$200,000
SAFE PROJECT$200,000
THE PROSTATE CANCER FOUNDATION$200,000
HEALTHNETWORK FOUNDATION$100,000
THE JOHNS HOPKINS HOSPITAL$100,000
NANTUCKET GOLF CLUB FOUNDATION$76,000
MANHATTAN THEATRE CLUB$50,000
CREATE CURES FOUNDATION$50,000
LOST TREE VILLAGE CHARITABLE FOUNDATION INC$35,000
SMITH COLLEGE$25,000
Individual grant recipient$15,000
DARTMOUTH COLLEGE$10,000
PLANNED PARENTHOOD$10,000
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, $435k) land where the poverty rate runs at 17%, against an area that typically sits at 11%. 99% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%HEALTHNETWORK FOUNDATION: $200k → 17%HEALTHNETWORK FOUNDATION: $100k → 17%HEALTHNETWORK FOUNDATION: $100k → 17%ST JOSEPH'S PARENTING CENTER: $5k → 9%HEALTH NETWORK FOUNDATION: $10k → 17%HEALTH NETWORK FOUNDATION: $10k → 17%HEALTH NETWORK FOUNDATION: $10k → 17%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

VT
NH
MI
NY
MA
OH
NJ
CT
RI
CA
VA
MD
AZ
DC
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.

91%of every dollar goes to organizations it has funded before.
$4.7M · 19 repeat orgs$439k to everyone else

Grantees it renews have grown median revenue +52% since the first grant, against +36% for those funded once.

19 repeat relationships: 13 still active in FY2024, 6 since wound down; 2 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

19
22

Total granted

$4.7M
$304k

Median revenue growth · since first grant

+52%
+36%

Still filing today

63%
73%

New vs renewed · share of each year

In FY2024, 94% of grant dollars renewed an existing relationship; $135k went to new ones.

50%100%’17’19’20’21’22’23’24
RenewedFirst-time

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

’17’19’20’21’22’23’24
HealthEducationPhilanthropyHuman ServicesArts & CultureInternationalOther
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

  • HEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC
    6× · 2017–2024 · $430k · revenue +329%
  • TI
    THE INSEAD MANAGEMENT EDUCATION FOUNDATION
    2× · 2023–2024 · $305k · revenue +119%
  • MT
    MANHATTAN THEATRE CLUB INC
    4× · 2019–2024 · $265k · revenue +35%

Funded once

  • GIVEDIRECTLY INC
    one grant, 2020 · $50k · revenue -32%
  • DH
    DARTMOUTH HITCHCOCK
    one grant, 2020 · $50k
  • GE
    GIVE ESSENTIAL
    one grant, 2020 · $30k · revenue -100%
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
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
2
Trustees of Tufts College

Education and Research

Education
3
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
4
President and Fellows of Harvard College

Undergraduate, graduate, and professional education and research across a broad array of academic domains.

Education
5
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
6
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
7
Boston Architectural College

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

—
8
Internet Society Foundation

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…

International
9
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
10
Fordham University

Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.

Education
11
The Uc Davis Foundation

The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.

Education
12
The George Washington University

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…

Education
How this is measured
The grantee most central to the portfolio’s shape is Orange County Community Foundation; the most unlike its peers is Bissell Pet Foundation. 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

32 grantees tracked through their own filings, 2017–2025.

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 32 of the 45 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.

0
Load-bearing (≥25% of a budget)
5
Early backer (in before they grew)
32/32
Grantees still filing
23/32
Grew since first funded

Where the money sits, by cause and then by grantee

MEMORIAL SLOAN-KETTERING CANCER CENTER: $1,750,000 · OtherMEMORIAL SLOAN-KETTERING CANCER CENTERSTOP THE ADDICTION FATALITY EPIDEMI: $300,000 · OtherSTOP THE ADDICTION FATALITY EPIDEMIBANK OF AMERICA CHARITABLE FUND: $90,000 · Other+18 more: $372,050 · Other+18 moreTrustees of Dartmouth College: $560,000 · EducationTrustees of D…THE TRUSTEES OF THE SMITH COLLEGE: $125,000 · EducationTHE TRUSTEES …+3 more: $12,000 · EducationSTOP THE ADDICTION FATALITY EPIDEMIC (SAFE) PROJECT US: $400,000 · HealthSTOP THE AD…THE JOHNS HOPKINS HOSPITAL: $100,000 · HealthTHE JOHNS H…CREATE CURES FOUNDATION: $85,000 · HealthCREATE CURE…+2 more: $15,000 · HealthPROSTATE CANCER FOUNDATION: $400,000 · PhilanthropyPROSTATE CA…NANTUCKET GOLF CLUB FOUNDATION INC: $108,500 · PhilanthropyNANTUCKET G…BISSELL Pet Foundation: $30,000 · PhilanthropyGIVE ESSENTIAL: $30,000 · PhilanthropyORANGE COUNTY COMMUNITY FOUNDATION: $25,000 · PhilanthropyTHE INSEAD MANAGEMENT EDUCATION FOUNDATION: $305,000 · InternationalTHE INSEAD…INTERNATIONAL MEDICAL CORPS: $210,000 · InternationalINTERNATIO…THESSALONICA AGRICULTURAL & INDUSTRIAL INSTITUTE (THE AMERICAN FARM SCHOOL): $25,000 · InternationalHEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC: $430,000 · Human ServicesHEALTHNET…GIVEDIRECTLY INC: $50,000 · Human ServicesGIVEDIREC…+1 more: $5,000 · Human ServicesMANHATTAN THEATRE CLUB INC: $265,000 · Arts & CultureCHILDREN'S MUSEUM INC: $25,000 · Arts & CultureTHE DREAMYARD PROJECT INC: $10,000 · Arts & Culture
Other$2,512,050Education$697,000Health$600,000Philanthropy$593,500International$540,000Human Services$485,000Arts & Culture$300,000

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetTrustees of Dartmouth College: $560,000 over 6y, 0.0% of budgetHEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC: $430,000 over 6y, 1.8% of budgetPROSTATE CANCER FOUNDATION: $400,000 over 2y, 0.4% of budgetSTOP THE ADDICTION FATALITY EPIDEMIC (SAFE) PROJECT US: $400,000 over 2y, 7.1% of budgetTHE INSEAD MANAGEMENT EDUCATION FOUNDATION: $305,000 over 2y, 8.0% of budgetMANHATTAN THEATRE CLUB INC: $265,000 over 4y, 0.3% of budgetINTERNATIONAL MEDICAL CORPS: $210,000 over 2y, 0.1% of budgetTHE TRUSTEES OF THE SMITH COLLEGE: $125,000 over 7y, 0.0% of budgetNANTUCKET GOLF CLUB FOUNDATION INC: $108,500 over 3y, 1.1% of budgetTHE JOHNS HOPKINS HOSPITAL: $100,000 over 1y, 0.0% of budgetCREATE CURES FOUNDATION: $85,000 over 2y, 9.4% of budgetGIVEDIRECTLY INC: $50,000 over 1y, 0.0% of budgetLost Tree Village Charitable Foundation: $35,000 over 1y, 0.5% of budgetBISSELL Pet Foundation: $30,000 over 6y, 0.1% of budgetORANGE COUNTY COMMUNITY FOUNDATION: $25,000 over 1y, 0.0% of budgetTHESSALONICA AGRICULTURAL & INDUSTRIAL INSTITUTE (THE AMERICAN FARM SCHOOL): $25,000 over 1y, 0.2% of budgetCHILDREN'S MUSEUM INC: $25,000 over 1y, 0.2% of budgetSTAR OF HOPE MISSION: $20,000 over 2y, 0.0% of budgetGREENWICH TOWN PARTY INC: $15,000 over 3y, 0.2% of budgetTHE DREAMYARD PROJECT INC: $10,000 over 1y, 0.1% of budgetGREENWICH COUNTRY DAY SCHOOL INC: $10,000 over 1y, 0.0% of budgetUPPER VALLEY HAVEN: $10,000 over 1y, 0.1% of budgetTHE BEACON OF DOWNTOWN HOUSTON: $10,000 over 1y, 0.3% of budgetVETERAN TICKETS FOUNDATION: $5,800 over 1y, 0.0% of budgetSAINT JOSEPH PARENTING CENTER INC: $5,000 over 1y, 0.8% of budgetThe Houston Food Bank: $5,000 over 1y, 0.0% of budgetNATIONAL FISH AND WILDLIFE FOUNDATION: $5,000 over 1y, 0.0% of budgetABILIS INC: $5,000 over 1y, 0.0% of budgetTeach for America Inc: $1,000 over 1y, 0.0% of budgetWATERSIDE SCHOOL INC: $1,000 over 1y, 0.0% of budget'SCONSET TRUST INC: $750 over 1y, 0.0% 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.

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.

Gs Donor Advised Phil…The Goldman Sachs Cha…Greater Houston Commu…National Philanthropi…Morgan Stanley Global…Vanguard Charitable E…American Endowment Fo…American Online Givin…Donor Advised Charita…The Bank of America C…Fidelity Investments …Amazonsmile Foundation
Gs Donor Advised Philanthropy Fund for Wealth Management IncNY16.7× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The Goldman Sachs Charitable Gift Fund · Greater Houston Community Foundation · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · American Endowment Foundation · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · The Bank of America Charitable Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

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 The Rock Foundation funds: left to right is the share of its income from government, bottom to top the share from The Rock Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%1%3%6%10%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 38%
  • Abilis Inc: 74% of income from government
  • Saint Joseph Parenting Center Inc: 51% of income from government
  • Upper Valley Haven: 38% of income from government
  • The Trustees of the Smith College: 1% of income from government
  • The Johns Hopkins Hospital: 0% of income from government
no gov moneyreceives it· size = income
6get no government money at all
4report government grants on their 990 we could not trace to a source (not plotted)
2rely 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.

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 45 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 Rock’s 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