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Cyril F & Marie O'Neil Foundation at a glance

· Private foundation

Cyril F & Marie O'Neil 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.

$423k
Granted FY2025still arriving
97
Grants FY2025still arriving
17
States reached
$66k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0196% classified

What it funded, over time

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

Education$1.0MReligion$743kArts & Culture$453kHealth$293kHuman Services$213kYouth Development$184kRecreation & Sports$150kPhilanthropy$81kOther$0
02FY2025 · 97 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k87 grants · $226k
  • $10k–50k9 grants · $132k
  • $50k–250k1 grant · $66k
$2,500
Median grant
17
States reached
$5.8M
Total assets
Largest grants
RecipientAmount
SOCIETY OF THE SACRED HEART$65,500
WGBH EDUCATIONAL FOUNDATION$33,000
BON SECOURS ST MARYS HOSPITAL OF RICHMOND LLC$18,000
OURAY ICE PARK INC$15,000
CLEVELAND HEARING & SPEECH CENTER$13,000
METROPOLITAN MUSEUM OF ART$12,500
UNIVERSITY OF COLORADO$10,000
ST TIMOTHY'S SCHOOL$10,000
BOCA GRANDE HEALTH CLINIC FDN$10,000
MALOTO$10,000
LEADING WITH LOVE$9,000
NATIONAL LINKS TRUST$8,500
CHILD MIND INSTITUTE$8,000
ANNA JULIA COOPER SCHOOL BUILDING HOPE$8,000
TABOR ACADEMY$6,000
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 (FY17–25, $108k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 93% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%WOUNDED WARRIOR PROJECT: $1k → 14%FREEDOM READS: $1k → 12%FREEDOM READS: $500 → 12%DZI FOUNDATION: $2k → 7%FRIENDS OF BOCA GRANDE COMMUNITY CENTER: $1k → 11%DZI FOUNDATION: $2k → 7%PINE STREET INN: $3k → 16%FRIENDS OF BOCA GRANDE COMMUNITY CENTER: $1k → 11%PINE STREET INN: $3k → 16%FRIENDS OF BOCA GRANDE COMMUNITY CENTER: $1k → 11%DZI FOUNDATION: $2k → 7%DZI FOUNDATION: $1k → 7%DZI FOUNDATION: $1k → 7%WESTCHESTER PLAYA VILLAGE: $5k → 14%HOPE IGNITES: $5k → 21%DZI FOUNDATION: $200 → 7%WESTSIDE PACIFIC VILLAGE: $5k → 14%FRIENDS OF BOCA GRANDE COMMUNITY CENTER: $1k → 11%WESTSIDE PACIFIC VILLAGE: $5k → 14%HETTRICK MARTIN INSTITUTE: $3k → 17%FRIENDS OF BOCA GRANDE COMMUNITY CENTER: $1k → 11%WESTCHESTER PLAYA VILLAGE: $4k → 14%FRIENDS OF BOCA GRANDE COMMUNITY CENTER: $1k → 11%WESTSIDE PACIFIC VILLAGE: $3k → 14%WESTCHESTER PLAYA VILLAGE: $3k → 14%WESTCHESTER PLAYA VILLAGE: $3k → 14%PINE STREET INN: $1k → 16%PINE STREET INN: $500 → 16%FRIENDS OF BOCA GRANDE COMMUNITY CENTER: $1k → 11%FRIENDS OF BOCA GRANDE COMMUNITY CENTER: $500 → 11%THERE WITH CARE: $3k → 12%PINE STREET INN: $500 → 16%THERE WITH CARE: $1k → 12%THERE WITH CARE: $1k → 12%FAIR CHANCE DC: $7k → 14%FAIR CHANCE DC: $7k → 14%DENVER ACTIVE 20-30 CHILDREN'S FOUNDATION: $2k → 12%FAIR CHANCE DC: $6k → 14%FAIR CHANCE DC: $5k → 14%FAIR CHANCE DC: $5k → 14%INNOCENCE PROJECT: $2k → 17%FAIR CHANCE DC: $5k → 14%FAIR CHANCE DC: $5k → 14%WELCOME HOUSE: $500 → 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
WA
WI
NY
MA
OR
OH
PA
CT
CA
CO
MO
VA
MD
AZ
NM
TN
NC
SC
DC
HI
GA
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.
$3.1M · 150 repeat orgs$298k to everyone else

Grantees it renews have grown median revenue +45% since the first grant, against +32% for those funded once.

150 repeat relationships: 72 still active in FY2025, 78 since wound down; 21 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

150
90

Total granted

$3.1M
$221k

Median revenue growth · since first grant

+45%
+32%

Still filing today

70%
51%

New vs renewed · share of each year

In FY2025, 82% of grant dollars renewed an existing relationship; $77k 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
EducationArts & CultureHealthHuman ServicesEnvironmentInternationalOther
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

  • MM
    METROPOLITAN MUSEUM OF ART
    8× · 2017–2025 · $88k · revenue +58%
  • CH
    CLEVELAND HEARING AND SPEECH CENTER
    9× · 2017–2025 · $82k · revenue +41%
  • TR
    THE RIVERS SCHOOL CORPORATION
    5× · 2017–2022 · $66k · revenue +24%

Funded once

  • IG
    Individual grant recipient
    one grant, 2017 · $18k
  • FI
    FREEDOM INSTITUTE INC
    one grant, 2021 · $11k · revenue -49%
  • TR
    THE ROCKEFELLER UNIVERSITY
    one grant, 2024 · $10k · revenue -8%
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
Boston Architectural College

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

—
2
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
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
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
5
Wentworth Institute of Technology Inc

Wentworth institute of technology is a nationally recognized private coeducational and residential university of higher education with a mission to empower, inspire and innovate through experiential learning with a core purpose of career…

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
Furman University

The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.

Education
8
Augustana College

Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…

Education
9
President and Fellows of Harvard College

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

Education
10
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.

—
11
Manhattanville University

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

Education
12
Wilson College

Wilson college empowers students to be confident and critical thinkers, creative visionaries, effective communicators, honorable leaders, and agents of justice.

Education
How this is measured
The grantee most central to the portfolio’s shape is Vail Health Services Foundation; the most unlike its peers is Ouray Mountain Rescue Team Inc. 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

171 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. 171 of the 267 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.

2
Load-bearing (≥25% of a budget)
41
Early backer (in before they grew)
169/171
Grantees still filing
130/171
Grew since first funded

Where the money sits, by cause and then by grantee

SOCIETY OF THE SACRED HEART UNITED STATES CANADA PROVINCE INC: $602,500 · OtherSOCIETY OF THE SACRED HEART UNITED STATES CANADA PROVINCE INCCLEVELAND HEARING AND SPEECH CENTER: $81,500 · OtherFAMILIES 4 FAMILIES: $66,000 · OtherTHE RIVERS SCHOOL CORPORATION: $65,550 · Other+108 more: $1,104,710 · Other+108 moreCORPORATION OF ST TIMOTHY'S SCHOOL: $90,000 · EducationCORPORATION OF ST TIMOT…TABOR ACADEMY: $43,800 · EducationTABOR ACADEMYLEWIS & CLARK COLLEGE: $40,500 · EducationLEWIS & CLARK COLLEGEMALOTO INC: $39,500 · EducationMALOTO INCLEADING WITH LOVE INC: $35,600 · EducationDENISON UNIVERSITY: $32,000 · EducationEmory University: $30,000 · EducationCOLORADO ACADEMY: $27,000 · EducationUNIVERSITY OF RICHMOND: $23,500 · Education+32 more: $336,200 · Education+32 moreTHE WANG CENTER FOR THE PERFORMING ARTS INC: $104,450 · Arts & CultureTHE WANG CE…METROPOLITAN MUSEUM OF ART: $87,500 · Arts & CultureMETROPOLITA…WGBH Educational Foundation: $60,200 · Arts & CultureWGBH Educat…NANTUCKET HISTORICAL ASSOCIATION: $14,250 · Arts & CultureNATIONAL LINKS TRUST: $14,000 · Arts & CultureJORGE M PEREZ ART MUSEUM OF MIAMI-DADE COUNTY INC: $11,500 · Arts & Culture+9 more: $45,000 · Arts & Culture+9 moreCHILD MIND INSTITUTE INC: $51,500 · HealthTHE NUCI PHILLIPS MEMORIAL FOUNDATION INC: $29,500 · HealthYoung Leadership Addiction Awareness Inc: $21,000 · HealthFREEDOM INSTITUTE INC: $11,000 · HealthTHE VINCENT CLUB INC: $7,750 · HealthVAIL HEALTH SERVICES FOUNDATION: $7,000 · Health+6 more: $16,500 · HealthCOLORADO OUTWARD BOUND SCHOOL: $102,500 · EnvironmentThe Ocean Foundation: $6,500 · Environment+4 more: $12,000 · EnvironmentFAIR CHANCE: $40,000 · Human ServicesWESTSIDE PACIFIC VILLAGES: $25,750 · Human ServicesPINE STREET INN INC: $8,000 · Human ServicesDZI FOUNDATION: $7,700 · Human ServicesFRIENDS OF BOCA GRANDE COMMUNITY CENTER INC: $7,500 · Human ServicesHOPE IGNITES: $5,000 · Human ServicesTHERE WITH CARE: $4,500 · Human Services+3 more: $6,700 · Human ServicesOURAY ICE PARK INC: $61,000 · Recreation & SportsROUNDUP RIVER RANCH: $18,000 · Recreation & SportsTHE FIRST TEE OF GREATER WASHINGTON DC LANGSTON GOLF COURSE: $9,000 · Recreation & SportsIncarnation Center Inc: $4,000 · Recreation & Sports
Other$1,920,260Education$698,100Arts & Culture$336,900Health$144,250Environment$121,000Human Services$105,150Recreation & Sports$92,000

Showing the 200 largest grantees by grant value.

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 budgetTHE WANG CENTER FOR THE PERFORMING ARTS INC: $104,450 over 9y, 0.4% of budgetCOLORADO OUTWARD BOUND SCHOOL: $102,500 over 8y, 0.9% of budgetCORPORATION OF ST TIMOTHY'S SCHOOL: $90,000 over 9y, 0.1% of budgetMETROPOLITAN MUSEUM OF ART: $87,500 over 8y, 0.0% of budgetCLEVELAND HEARING AND SPEECH CENTER: $81,500 over 9y, 0.3% of budgetTHE RIVERS SCHOOL CORPORATION: $65,550 over 5y, 0.1% of budgetHOPE IGNITES NORTHEASTERN OHIO INC: $62,500 over 9y, 0.4% of budgetOURAY ICE PARK INC: $61,000 over 6y, 3.7% of budgetWGBH Educational Foundation: $60,200 over 2y, 0.0% of budgetCHILD MIND INSTITUTE INC: $51,500 over 7y, 0.1% of budgetCATHOLIC COMMUNITY FOUNDATION: $49,000 over 6y, 0.1% of budgetTABOR ACADEMY: $43,800 over 9y, 0.0% of budgetLEWIS & CLARK COLLEGE: $40,500 over 8y, 0.0% of budgetFAIR CHANCE: $40,000 over 7y, 0.4% of budgetMALOTO INC: $39,500 over 8y, 0.9% of budgetLEADING WITH LOVE INC: $35,600 over 7y, 32% of budgetDENISON UNIVERSITY: $32,000 over 4y, 0.0% of budgetNEW PROFIT INC: $32,000 over 5y, 0.0% of budgetEmory University: $30,000 over 3y, 0.0% of budgetTHE NUCI PHILLIPS MEMORIAL FOUNDATION INC: $29,500 over 8y, 0.6% of budgetCOLORADO ACADEMY: $27,000 over 9y, 0.0% of budgetTRUSTEES OF BOSTON UNIVERSITY: $26,100 over 8y, 0.0% of budgetWESTSIDE PACIFIC VILLAGES: $25,750 over 7y, 4.1% of budgetBOULDER PARKS AND RECREATION FOUNDATION: $25,500 over 7y, 1.8% of budgetUNIVERSITY OF RICHMOND: $23,500 over 8y, 0.0% of budgetPENCILS FOR KIDS INC: $22,000 over 9y, 3.7% of budgetRANSOM EVERGLADES SCHOOL INC: $21,500 over 5y, 0.0% of budgetDream With Me Foundation: $21,000 over 6y, 92% of budgetYoung Leadership Addiction Awareness Inc: $21,000 over 4y, 2.7% of budgetCHOATE ROSEMARY HALL FOUNDATION INCORPORATED: $20,500 over 9y, 0.0% of budgetUNIVERSITY OF COLORADO FOUNDATION: $20,500 over 6y, 0.0% of budgetANNA JULIA COOPER SCHOOL: $19,500 over 2y, 0.2% of budgetDENVER ACADEMY INC: $18,000 over 9y, 0.0% of budgetROUNDUP RIVER RANCH: $18,000 over 9y, 0.1% of budgetVail Symposium: $16,500 over 9y, 0.4% of budgetBARNARD COLLEGE: $16,000 over 7y, 0.0% of budgetTRUSTEES OF WESTMINSTER SCHOOL INC: $16,000 over 4y, 0.0% of budgetTHE J PAUL GETTY TRUST: $15,000 over 4y, 0.0% of budgetPresident and Fellows of Middlebury College: $15,000 over 9y, 0.0% of budgetGEORGETOWN UNIVERSITY: $14,500 over 9y, 0.0% of budgetTHE CONSCIOUS ALLIANCE: $14,500 over 6y, 0.0% of budgetNANTUCKET HISTORICAL ASSOCIATION: $14,250 over 4y, 0.1% of budgetNATIONAL LINKS TRUST: $14,000 over 3y, 0.0% of budgetFairview High School Parents Organi: $13,500 over 3y, 10% of budgetSHARE OUR STRENGTH: $12,500 over 6y, 0.0% of budgetMORE THAN WORDS INC: $11,500 over 5y, 0.1% of budgetJORGE M PEREZ ART MUSEUM OF MIAMI-DADE COUNTY INC: $11,500 over 5y, 0.0% of budgetFREEDOM INSTITUTE INC: $11,000 over 1y, 0.4% 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 THE WANG CENTER FOR THE PERFORMING ARTS INC ↗
  • Who funds COLORADO OUTWARD BOUND SCHOOL ↗
  • Who funds CORPORATION OF ST TIMOTHY'S SCHOOL ↗
  • Who funds METROPOLITAN MUSEUM OF ART ↗
  • Who funds CLEVELAND HEARING AND SPEECH CENTER ↗
  • Who funds THE RIVERS SCHOOL CORPORATION ↗
  • Who funds HOPE IGNITES NORTHEASTERN OHIO INC ↗
  • Who funds OURAY ICE PARK INC ↗
  • Who funds WGBH Educational Foundation ↗
  • Who funds CHILD MIND INSTITUTE INC ↗
  • Who funds CATHOLIC COMMUNITY FOUNDATION ↗
  • Who funds TABOR ACADEMY ↗
  • Who funds LEWIS & CLARK COLLEGE ↗
  • Who funds FAIR CHANCE ↗
  • Who funds MALOTO INC ↗
  • Who funds LEADING WITH LOVE INC ↗
  • Who funds DENISON UNIVERSITY ↗
  • Who funds NEW PROFIT INC ↗
  • Who funds Emory University ↗
  • Who funds THE NUCI PHILLIPS MEMORIAL FOUNDATION INC ↗
  • Who funds COLORADO ACADEMY ↗
  • Who funds TRUSTEES OF BOSTON UNIVERSITY ↗
  • Who funds WESTSIDE PACIFIC VILLAGES ↗
  • Who funds BOULDER PARKS AND RECREATION FOUNDATION ↗
  • Who funds UNIVERSITY OF RICHMOND ↗
  • Who funds PENCILS FOR KIDS INC ↗
  • Who funds RANSOM EVERGLADES SCHOOL INC ↗
  • Who funds Dream With Me Foundation ↗
  • Who funds Bon Secours - St Mary's Hospital of Richmond Inc ↗
  • Who funds Young Leadership Addiction Awareness Inc ↗
  • Who funds CHOATE ROSEMARY HALL FOUNDATION INCORPORATED ↗

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.

Colorado Gives Founda…The Denver FoundationWestern Colorado Comm…The Cleveland Foundat…The Bessemer Giving F…Rose Community Founda…El Pomar FoundationKelton Family Foundat…Madmone IncFredman Family Founda…The Lozick Family Fou…Community Foundation …
Colorado Gives FoundationCO24× affinity16 shared granteesties to 10 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Colorado Gives Foundation · The Denver Foundation · Western Colorado Community Foundation Inc · The Cleveland Foundation · The Bessemer Giving Fund · Rose Community Foundation · El Pomar Foundation · Kelton Family Foundation · Madmone Inc · Fredman Family Foundation Inc · The Lozick Family Foundation · Community Foundation Boulder County

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 Cyril F & Marie O'Neil Foundation funds: left to right is the share of its income from government, bottom to top the share from Cyril F & Marie O'Neil Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 230%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 7%
  • Vietnam Veterans Workshop Inc Dba New England Center and Home for Veterans: 66% of income from government
  • Mercy Corps: 47% of income from government
  • Boston Harbor Now Inc: 45% of income from government
  • Bridge Over Troubled Waters Inc: 32% of income from government
  • More Than Words Inc: 24% of income from government
  • Greater Boston Food Bank Inc: 22% of income from government
  • Saint Francis House Inc: 18% of income from government
  • Heading Home Inc: 17% of income from government
  • Trustees of Tufts College: 13% of income from government
  • Freedom Reads Inc: 12% of income from government
  • Trustees of Boston University: 12% of income from government
  • New England Aquarium Corporation: 12% of income from government
  • Pine Street Inn Inc: 11% of income from government
  • City Year Inc: 11% of income from government
  • The Wang Center for the Performing Arts Inc: 10% of income from government
  • Worcester Polytechnic Institute: 8% of income from government
  • Boys & Girls Club of Greenwich: 7% of income from government
  • Nantucket Conservation Foundation Inc: 4% of income from government
  • Planned Parenthood League of Massachusetts Inc: 3% of income from government
  • Babson College: 3% of income from government
  • Trustees of Boston College: 3% of income from government
  • Lewis & Clark College: 2% of income from government
  • University of Hartford: 1% of income from government
  • President and Fellows of Middlebury College: 1% of income from government
  • Als One Inc: 1% of income from government
  • Wgbh Educational Foundation: 1% of income from government
  • Incarnation Center Inc: 1% of income from government
  • Nantucket Historical Association: 1% of income from government
  • Rollins College: 0% of income from government
  • Artists Association of Nantucket Inc: 0% of income from government
  • Rosie's Place Inc: 0% of income from government
  • Pan-Massachusetts Challenge Inc: 0% of income from government
  • Wounded Warrior Project Inc: 0% of income from government
  • Choate Rosemary Hall Foundation Incorporated: 0% of income from government
no gov moneyreceives it· size = income
23get no government money at all
27report government grants on their 990 we could not trace to a source (not plotted)
1rely 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 Cyril F & Marie O'Neil Foundation?

Find your warmest path to Cyril F & Marie O'Neil 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 from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 267 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Cyril F & Marie O'Neil’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