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Plinth

· Private foundation

The Rock Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$3.7M
Granted FY2025still arriving
47
Grants FY2025still arriving
7
States reached
$1.0M
Largest
01What you fundRead
02The needRead
03Your edgeRead
04Your fieldRead
05Through PlinthRead
01What you fund
0199% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.

Education$8.0MArts & Culture$2.6MPublic Benefit$2.0MFood & Nutrition$1.8MYouth Development$1.2MReligion$1.1MCivil Rights$996kPhilanthropy$951kOther$0
02FY2025 · 47 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k15 grants · $59k
  • $10k–50k13 grants · $215k
  • $50k–250k15 grants · $1.2M
  • $250k+4 grants · $2.2M
$20,000
Median grant
7
States reached
$51M
Total assets
Largest grants
RecipientAmount
CHRONICLE SEASON OF SHARING FUND$1,000,000
SYRACUSE UNIVERSITY$500,000
MEALS ON WHEELS OF SAN FRANCISCO$400,000
HUMAN RIGHTS FIRST$300,000
KQED$130,000
COMMONWEALTH CLUB OF CA$125,000
UNITED WAY BAY AREA$100,000
JEWISH VOCATIONAL & CAREER COUNSELING$100,000
TNDC - (TENDERLOIN NEIGHBORHOOD DEVELOPMENT CORPORATION)$100,000
GO PUBLIC SCHOOLS$100,000
OAKLAND SCHOOL FOR THE ARTS$75,000
ARCS FOUNDATION SCHOLARSHIP(ACHIEVEMENT REWARDS FOR COLLEGE SCIENTISTS)$75,000
BOYS & GIRLS CLUBS OF SAN FRANCISCO$75,000
NATIONAL PUBLIC RADIO$50,000
CLINIC BY THE BAY (VOLUNTEERS IN MEDICINE - SAN FRANCISCO)$50,000
02The need
03

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.

show:

Your human-services grants (FY17–24, $435k) land where the poverty rate runs at 13%, against an area that typically sits at 10%. 98% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 10%SPRINGBOARD COLLABORATIVE: $100k → 22%CHILD CARE LAW CENTER: $1k → 10%SAN FRANCISCO VILLAGE: $3k → 10%SAN FRANCISCO VILLAGE: $3k → 10%SAN FRANCISCO VILLAGE: $3k → 10%SAN FRANCISCO VILLAGE: $3k → 10%SAN FRANCISCO VILLAGE: $3k → 10%SAN FRANCISCO VILLAGE: $3k → 10%JEWISH COMMUNITY CENTER OF SAN FRANCISCO: $1k → 10%JEWISH COMMUNITY CENTER OF SAN FRANCISCO: $1k → 10%JEWISH COMMUNITY CENTER OF SAN FRANCISCO: $1k → 10%INSTITUTE ON AGING: $1k → 10%JEWISH COMMUNITY CENTER OF SAN FRANCISCO: $1k → 10%JEWISH COMMUNITY CENTER OF SAN FRANCISCO: $1k → 10%CHILD CARE LAW CENTER: $1k → 10%INSTITUTE ON AGING: $1k → 10%CHILD CARE LAW CENTER: $1k → 10%JEWISH COMMUNITY CENTER OF SAN FRANCISCO: $1k → 10%INSTITUTE ON AGING: $1k → 10%INSTITUTE ON AGING: $1k → 10%INSTITUTE ON AGING: $1k → 10%INSTITUTE ON AGING: $1k → 10%JEWISH COMMUNITY CENTER OF SAN FRANCISCO: $1k → 10%GIRLS INC OF ALAMEDA COUNTY: $2k → 10%GIRLS INC OF ALAMEDA COUNTY: $1k → 10%GIRLS INC OF ALAMEDA COUNTY: $1k → 10%GIRLS INC OF ALAMEDA COUNTY: $1k → 10%GIRLS INC OF ALAMEDA COUNTY: $1k → 10%GIRLS INC OF ALAMEDA COUNTY: $1k → 10%CHILD CARE LAW CENTER: $2k → 10%CHILD CARE LAW CENTER: $1k → 10%JEWISH FAMILY & CHILDRENS SERVICES: $25k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $40k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $40k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $35k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $25k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $25k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $25k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $25k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $25k → 10%AT THE CROSSROADS: $5k → 10%AT THE CROSSROADS: $6k → 10%AT THE CROSSROADS: $6k → 10%AT THE CROSSROADS: $6k → 10%AT THE CROSSROADS: $6k → 10%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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

ME
WA
MT
IL
NY
MA
OR
IA
IN
OH
PA
CT
CA
UT
CO
MO
VA
MD
AZ
TN
NC
DC
TX

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.

03Your edge
repeat funding

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.

82%of every dollar goes to organizations you’ve funded before.
$18M · 191 repeat orgs$3.9M to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +29% since the first grant, against +27% for the ones you funded once.

191 repeat relationships — 39 still active in FY2025, 152 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

191
79

Total granted

$18M
$2.3M

Median revenue growth · since first grant

+29%
+27%

Still filing today

78%
65%

New vs renewed · share of each year

In FY2025, 55% of grant dollars renewed an existing relationship; $1.6M went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Arts & CultureEducationCivil RightsInternationalCrime & LegalHealthOther

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

  • TB
    THE BASIC FUND
    5× · 2017–2024 · $1.7M · revenue +82%
  • MO
    MEALS ON WHEELS OF SAN FRANCISCO INC
    6× · 2017–2025 · $660k · revenue +44%
  • SYRACUSE UNIVERSITY
    6× · 2017–2025 · $650k · revenue +45%

Funded once

  • TO
    THE OPPORTUNITY TRUST D/B/A ZEST EDUCATIONgraduated
    one grant, 2019 · $250k · revenue +240%
  • VC
    VOICES COLLEGE-BOUND LANGUAGE ACADEMIESgraduated
    one grant, 2017 · $200k · revenue +204%
  • MISSION AREA HEALTH ASSOCIATES
    one grant, 2021 · $150k · revenue +8%

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

04Your field

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.

1
Ucsf Foundation Investment Company

The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.

Education
2
The International School of San Francisco

Guided by the principles of academic rigor and diversity, the international school of san francisco offers programs of study in french and english to prepare its graduates for a world in which the ability to think critically and to…

Education
3
Golden Gate University

Golden gate university prepares individuals to lead and serve by providing high quality, practice-based educational programs in law, taxation, business and related professions - as a nonprofit institution - in an innovative and challenging…

Education
4
The Bar Association of San Francisco

The bar association of san francisco champions equal access to justice and promotes humanity, excellence, and diversity in the legal profession. we provide legal services to disadvantaged and underserved individuals in san francisco. we…

—
5
Jobs with Justice San Francisco

A long-term, strategic alliance of labor, community, faith-based, and student organizations working together to build greater economic power for workers and community members through employee rights at work and access to good jobs,…

Employment
6
Association of California School Administrators

The association serves its members by creating resources that enable california school administrators to develop and apply creative leadership and management skills and in turn, improve the educational process for all students.

—
7
California Forward

Ca fwd drives action to identify solutions that can be taken to scale to meet the challenges the state is facing. the organization is driven by the belief that regional solutions across the state will help ensure economic, environmental,…

Public Benefit
8
California College of the Arts

California college of the arts educates students to shape culture and society through the practice and critical study of art, architecture, design, and writing. benefitting from its san francisco bay area location, the college prepares…

Education
9
Silicon Schools Fund Inc

The mission of the silicon schools fund is to improve education through supporting the launch of excellent new schools, improving academic instruction in existing schools, and by funding some of the boldest innovations in education…

Education
10
The Union of Concerned Scientists Inc

The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.

International
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 American Institute of Architects California

The AIA California, in collaboration with local components, is the voice of the architectural profession.

—

For reference, the grantee most central to the portfolio’s shape is The Basic Fund and the most unlike its peers is Computer History Museum. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 39 years old; the field is 14. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number24%1%<5yr15%2%5–10yr20%13%10–20yr17%31%20–35yr11%23%35–55yr13%31%55yr+
THE FIELDby orgYOUR MONEYby value24%0%<5yr15%3%5–10yr20%14%10–20yr17%29%20–35yr11%20%35–55yr13%35%55yr+

The field is 24% startups (under 5 years old) — 1% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close — 1% lost their exemption, against 14% of the field you don’t fund.

orgs you fund
1%3/224
the rest of the field
14%
26,001/186,754

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.

04the grantee network

220 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. 220 of the 281 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.

0
Load-bearing (≥25% of a budget)
41
Early backer (in before they grew)
209/220
Grantees still filing
141/220
Grew since you first funded

Where your money sits — by cause, then by grantee

ST ANTHONY FOUNDATION — $750,000 · OtherST ANTHONY FOUNDATIONMEALS ON WHEELS OF SAN FRANCISCO INC — $660,000 · OtherMEALS ON WHEELS OF SAN FRANCISCO INCCOMMONWEALTH CLUB OF CA — $640,000 · OtherCOMMONWEALTH CLUB OF CAARCS FOUNDATION INC NCC (ACHIEVEMENT REWARDS FOR COLLEGE SCIENTISTS) — $425,000 · OtherIMMIGRANTS RISING (COMMUNITY INITIATIVES) — $400,000 · OtherJEWISH VOCATIONAL & CAREER COUNSELING SERVICE — $350,000 · OtherTHEATRE COMMUNICATIONS GROUP INC — $340,000 · Other+113 more — $6,510,497 · Other+113 moreTHE BASIC FUND — $1,650,550 · EducationTHE BASIC FUNDSYRACUSE UNIVERSITY — $650,000 · EducationSYRACUSE UNIVERSITYOAKLAND SCHOOL FOR THE ARTS — $575,000 · EducationOAKLAND SCHOOL FOR THE ARTSCommunity Resources for Science — $525,000 · EducationCommunity Resources for Science826 Valencia — $475,000 · Education826 Valencia50CAN INC — $425,000 · Education50CAN INCCOMMONLIT INC — $300,000 · EducationTHE OPPORTUNITY TRUST D/B/A ZEST EDUCATION — $250,000 · Education+29 more — $1,867,000 · Education+29 moreKQED INC — $530,000 · Arts & CultureKQED INCCALIFORNIA ACADEMY OF SCIENCES — $225,000 · Arts & CultureCALIFORNIA …NATIONAL PUBLIC RADIO INC — $200,000 · Arts & CultureNATIONAL PU…SAN FRANCISCO BALLET ASSOCIATION — $200,000 · Arts & CultureSAN FRANCIS…Theatre Bay Area — $132,500 · Arts & CultureTheatre Bay…MAGIC THEATRE INC — $125,000 · Arts & CultureMAGIC THEAT…COMPUTER HISTORY MUSEUM — $90,000 · Arts & CultureSan Francisco Playhouse — $81,000 · Arts & Culture+23 more — $673,550 · Arts & Culture+23 moreUNITED WAY OF THE BAY AREA — $400,000 · PhilanthropyGIANTS COMMUNITY FUND — $317,500 · PhilanthropyTHE MODERN CLASSROOMS PROJECT INC — $200,000 · PhilanthropyTHE WEST MARIN FUND — $150,500 · PhilanthropyFOUNDATION FOR STUDENTS RISING ABOVE — $85,000 · PhilanthropyCHRONICLE SEASON OF SHARING FUND — $1,000,000 · Food & NutritionFeeding America — $125,000 · Food & Nutrition+1 more — $15,000 · Food & NutritionISSUE ONE — $450,000 · Public BenefitBIPARTISAN POLICY CENTER INC — $300,000 · Public BenefitBOYS & GIRLS CLUBS OF SAN FRANCISCO — $500,000 · Youth DevelopmentGIRL SCOUTS OF NORTHERN CALIFORNIA — $60,000 · Youth Development
Other$10,075,497Education$6,717,550Arts & Culture$2,257,050Philanthropy$1,153,000Food & Nutrition$1,140,000Public Benefit$750,000Youth Development$560,000

Showing your 200 largest grantees by grant value.

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetTHE BASIC FUND — $1,650,550 over 5y, 6.5% of budgetCHRONICLE SEASON OF SHARING FUND — $1,000,000 over 1y, 6.0% of budgetMEALS ON WHEELS OF SAN FRANCISCO INC — $660,000 over 6y, 1.3% of budgetSYRACUSE UNIVERSITY — $650,000 over 6y, 0.0% of budgetOAKLAND SCHOOL FOR THE ARTS — $575,000 over 9y, 0.7% of budgetKQED INC — $530,000 over 9y, 0.1% of budgetCommunity Resources for Science — $525,000 over 7y, 15% of budgetBOYS & GIRLS CLUBS OF SAN FRANCISCO — $500,000 over 9y, 0.3% of budget826 Valencia — $475,000 over 2y, 7.2% of budgetISSUE ONE — $450,000 over 3y, 4.5% of budget50CAN INC — $425,000 over 4y, 0.5% of budgetUNITED WAY OF THE BAY AREA — $400,000 over 4y, 0.7% of budgetJEWISH VOCATIONAL & CAREER COUNSELING SERVICE — $350,000 over 7y, 0.5% of budgetTHEATRE COMMUNICATIONS GROUP INC — $340,000 over 8y, 1.4% of budgetThe Center for Investigative Reporting Inc — $325,000 over 4y, 1.3% of budgetGIANTS COMMUNITY FUND — $317,500 over 8y, 1.5% of budgetCOMMONLIT INC — $300,000 over 5y, 2.0% of budgetBOYS & GIRLS CLUBS OF OAKLAND — $300,000 over 4y, 6.6% of budgetBIPARTISAN POLICY CENTER INC — $300,000 over 6y, 0.2% of budgetWORLD JEWISH CONGRESS (AMERICAN SECTION) INC — $297,500 over 6y, 0.5% of budgetBERKELEY CHESS SCHOOL — $270,000 over 3y, 17% of budgetTHE OPPORTUNITY TRUST D/B/A ZEST EDUCATION — $250,000 over 1y, 3.9% of budgetIMMIGRANT LEGAL RESOURCE CENTER — $240,000 over 8y, 0.2% of budgetCALIFORNIA ACADEMY OF SCIENCES — $225,000 over 9y, 0.0% of budgetCollegespring Inc — $215,000 over 6y, 2.7% of budgetVOICES COLLEGE-BOUND LANGUAGE ACADEMIES — $200,000 over 1y, 1.7% of budgetTENDERLOIN NEIGHBORHOOD DEVELOPMENT CORPORATION — $200,000 over 9y, 0.1% of budgetTHE MODERN CLASSROOMS PROJECT INC — $200,000 over 2y, 3.3% of budgetNATIONAL PUBLIC RADIO INC — $200,000 over 7y, 0.0% of budgetEDSOURCE INC — $200,000 over 2y, 3.0% of budgetSAN FRANCISCO BALLET ASSOCIATION — $200,000 over 2y, 0.2% of budgetBig Brothers Big Sisters of the Bay Area — $175,000 over 9y, 1.1% of budgetTHE WEST MARIN FUND — $150,500 over 4y, 7.8% of budgetMISSION AREA HEALTH ASSOCIATES — $150,000 over 1y, 0.4% of budgetALLIANCE FOR COLLEGE-READY PUBLIC SCHOOLS — $150,000 over 1y, 0.5% of budgetTheatre Bay Area — $132,500 over 6y, 3.0% of budgetSAN FRANCISCO FREE CLINIC — $130,000 over 9y, 0.5% of budgetFeeding America — $125,000 over 6y, 0.0% of budgetMAGIC THEATRE INC — $125,000 over 4y, 2.7% of budgetLegal Aid at Work — $110,500 over 5y, 0.4% of budgetENVISION EDUCATION INC — $100,000 over 2y, 0.3% of budgetICIVICS INC — $100,000 over 1y, 3.1% of budgetNOBLE NETWORK OF CHARTER SCHOOLS — $100,000 over 1y, 0.1% of budgetCALIBER PUBLIC SCHOOLS — $100,000 over 1y, 0.5% of budgetSPRINGBOARD COLLABORATIVE — $100,000 over 1y, 1.6% of budgetNEW PROFIT INC — $100,000 over 1y, 0.2% of budgetGO Public Schools — $100,000 over 1y, 4.6% of budgetSAN FRANCISCO STUDY CENTER INC — $100,000 over 4y, 0.3% of budget
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 THE BASIC FUND ↗
  • Who funds CHRONICLE SEASON OF SHARING FUND ↗
  • Who funds MEALS ON WHEELS OF SAN FRANCISCO INC ↗
  • Who funds SYRACUSE UNIVERSITY ↗
  • Who funds OAKLAND SCHOOL FOR THE ARTS ↗
  • Who funds KQED INC ↗
  • Who funds Community Resources for Science ↗
  • Who funds BOYS & GIRLS CLUBS OF SAN FRANCISCO ↗
  • Who funds 826 Valencia ↗
  • Who funds ISSUE ONE ↗
  • Who funds 50CAN INC ↗
  • Who funds UNITED WAY OF THE BAY AREA ↗
  • Who funds JEWISH VOCATIONAL & CAREER COUNSELING SERVICE ↗
  • Who funds THEATRE COMMUNICATIONS GROUP INC ↗
  • Who funds The Center for Investigative Reporting Inc ↗
  • Who funds GIANTS COMMUNITY FUND ↗
  • Who funds COMMONLIT INC ↗
  • Who funds BOYS & GIRLS CLUBS OF OAKLAND ↗
  • Who funds HUMAN RIGHTS FIRST ↗
  • Who funds BIPARTISAN POLICY CENTER INC ↗
  • Who funds WORLD JEWISH CONGRESS (AMERICAN SECTION) INC ↗
  • Who funds BERKELEY CHESS SCHOOL ↗
  • Who funds THE OPPORTUNITY TRUST D/B/A ZEST EDUCATION ↗
  • Who funds IMMIGRANT LEGAL RESOURCE CENTER ↗
  • Who funds CALIFORNIA ACADEMY OF SCIENCES ↗
  • Who funds Collegespring Inc ↗
  • Who funds VOICES COLLEGE-BOUND LANGUAGE ACADEMIES ↗
  • Who funds TENDERLOIN NEIGHBORHOOD DEVELOPMENT CORPORATION ↗
  • Who funds THE MODERN CLASSROOMS PROJECT INC ↗
  • Who funds NATIONAL PUBLIC RADIO INC ↗
  • Who funds EDSOURCE INC ↗
  • Who funds SAN FRANCISCO BALLET ASSOCIATION ↗
  • Who funds Big Brothers Big Sisters of the Bay Area ↗
  • Who funds THE WEST MARIN FUND ↗

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.

Marin Community Found…The San Francisco Fou…Jewish Community Fede…The William & Flora H…Koret FoundationEast Bay Community Fo…The Zellerbach Family…The James Irvine Foun…Kenneth Rainin Founda…McNabb FoundationSilicon Valley Commun…Phyllis C Wattis Foun…
Marin Community FoundationCA71.1× affinity56 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Marin Community Foundation · The San Francisco Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · The William & Flora Hewlett Foundation · Koret Foundation · East Bay Community Foundation · The Zellerbach Family Foundation · The James Irvine Foundation · Kenneth Rainin Foundation · McNabb Foundation · Silicon Valley Community Foundation · Phyllis C Wattis Foundation

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 Rock 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 or a single department — and drag the year to watch it move.

2024
’20’21’22’23’24’25
no gov · 40%1%4%8%15%your share of their income ↑0%25%50%75%100%share of the org’s income from government →median 13%
  • Massachusetts Foundation for the Humanities & Public Policy Inc — 45% of income from government
  • Save the Children Federation Inc — 30% of income from government
  • American Hiking Society — 14% of income from government
  • Icivics Inc — 13% of income from government
  • Citizen Schools Inc — 8% of income from government
  • American Academy of Arts & Sciences — 3% of income from government
  • Oregon Shakespeare Festival Association Inc — 0% of income from government
no gov moneyreceives it· size = income
4get no government money at all
71report 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

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.

05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Rock Foundation?

Find your warmest path to The Rock Foundation 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 directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 281 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

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