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Timothy J And Linda D O'Neill Foundation at a glance

· Private foundation

Timothy J And Linda D O'Neill Foundation

Its FY2026 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$2.6M
Granted FY2026still arriving
10
Grants FY2026still arriving
5
States reached
$1.0M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0190% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Education$10MHealth$1.6MPublic Benefit$110kEnvironment$21kPublic Safety & Disaster$11kHousing & Shelter$10kPhilanthropy$10kRecreation & Sports$5kOther$0
02FY2026 · 10 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2026

  • Under $10k5 grants · $12k
  • $10k–50k2 grants · $40k
  • $250k+3 grants · $2.5M
$15,000
Median grant
5
States reached
$7.2M
Total assets
Largest grants
RecipientAmount
Greenwich Academy$1,015,000
Brunswick School$1,010,000
Weill Cornell Medicine$496,192
St Ann's Episcopal Church$25,000
Georgetown University$15,000
Friends of the Portland Community Free Clinic$5,000
Round Hill Volunteer Fire Company$2,000
Kennebunkport Conservation Trust$2,000
Individual grant recipient$2,000
Individual grant recipient$1,000
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:

Dollar for dollar, its grants (FY23–26) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 34% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%Roger Lehecka Double Discovery Center at Columbia: $1k → 17%Children's National Medical Center: $100k → 14%Round Hill Volunteer Fire Company: $2k → 9%St Ann's Episcopal Church: $25k → 14%Friends of the Portland Community Free Clinic: $5k → 7%Friends Of Cape Arundel Inc: $100k → 9%Hospital for Special Surgery: $5k → 17%Georgetown University: $15k → 14%Round Hill Volunteer Fire Company: $1k → 9%Friends Of The Portland Community Free Clinic: $1k → 7%Kennebunkport Conservation Trust: $2k → 9%The Metropolitan Museum Of Art: $5k → 17%Barbara Bush Foundation: $5k → 14%Round Hill Volunteer Fire Company: $1k → 9%Kennebunkport EMS: $2k → 9%Weill Cornell Medicine: $1.5M → 17%Round Hill Volunteer Fire Company: $1k → 9%Kennebunkport Emergency Medical Services: $1k → 9%Weill Cornell Medicine: $496k → 17%Greenwich Academy: $1.0M → 9%Kennebunkport Emergency Medical Services: $1k → 9%Brunswick School: $1.0M → 9%Meadow Woods Preserve: $1k → 9%Greenwich Academy: $1.0M → 9%Louis T Graves Memorial Public Library Association: $1k → 9%Brunswick School: $1.0M → 9%Kennebunkport Emergency Medical Services: $1k → 9%Greenwich Professional Firefighters: $1k → 9%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.
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.

92%of every dollar goes to organizations it has funded before.
$14M · 10 repeat orgs$1.3M to everyone else

10 repeat relationships: 7 still active in FY2026, 3 since wound down; 3 grantees were first funded in FY2026 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

10
16

Total granted

$14M
$1.3M

Median revenue growth · since first grant

+11%
+22%

Still filing today

80%
63%

New vs renewed · share of each year

In FY2026, 99% of grant dollars renewed an existing relationship; $28k went to new ones.

50%100%’20’21’22’23’24’25’26
RenewedFirst-time

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

’20’21’22’23’24’25’26
EducationHealthHuman ServicesArts & CultureEnvironmentHousing & ShelterOther
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

  • GEORGETOWN UNIVERSITY
    3× · 2021–2026 · $8.2M · revenue +34%
  • BS
    BRUNSWICK SCHOOL INC
    3× · 2022–2026 · $2.0M · revenue +24%
  • RH
    ROUND HILL VOLUNTEER FIRE COMPANY INC
    4× · 2023–2026 · $5k · revenue +76%

Funded once

  • IG
    Individual grant recipient
    one grant, 2020 · $1.0M
  • CN
    CHILDREN'S NATIONAL
    one grant, 2024 · $100k · revenue +25%
  • FO
    Friends Of Cape Arundel Inc
    one grant, 2025 · $100k
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
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
2
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
3
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
4
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
5
Stony Brook Childrens Services University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
6
MaineGeneral Health

To enhance, every day, the health of our patients, our families and our communities. We do that through a range of health care services for people of all ages, in a variety of care settings.

Health
7
Bridgton Hospital

To provide exceptional healthcare services in a safe and trustfulenvironment through the expertise, commitment, and compassion ofour family of caregivers.

Health
8
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
9
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
10
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
11
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
12
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
How this is measured
The grantee most central to the portfolio’s shape is Gillen Brewer School; the most unlike its peers is Metropolitan Museum of Art. 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

18 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. 18 of the 29 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)
2
Early backer (in before they grew)
18/18
Grantees still filing
10/18
Grew since first funded

Where the money sits, by cause and then by grantee

GEORGETOWN UNIVERSITY: $8,165,000 · EducationGEORGETOWN UNIVERSITYGREENWICH ACADEMY INC: $2,039,975 · EducationGREENWICH ACADEMY INCBRUNSWICK SCHOOL INC: $2,035,861 · EducationBRUNSWICK SCHOOL INC+3 more: $12,000 · EducationWeill Cornell Medicine: $1,996,192 · OtherWeill Cornell MedicineIndividual grant recipient: $1,004,327 · OtherIndividual grant recipi…+13 more: $170,000 · Other+13 moreCHILDREN'S NATIONAL: $100,000 · HealthDempsey Center for Quality Cancer Care: $5,000 · Health+1 more: $3,000 · HealthKennebunkport Conservation Trust: $23,000 · EnvironmentUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $10,000 · PhilanthropyKENNEBUNKPORT HERITAGE HOUSING TRUST: $10,000 · Housing & ShelterPATIENT AIRLIFT SERVICES INC: $5,000 · Human ServicesNY POLICE AND FIRE WIDOWS' & CHILDREN'S BENEFIT FUND INC: $5,000 · Human Services
Education$12,252,836Other$3,170,519Health$108,000Environment$23,000Philanthropy$10,000Housing & Shelter$10,000Human Services$10,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetGEORGETOWN UNIVERSITY: $8,165,000 over 3y, 0.2% of budgetGREENWICH ACADEMY INC: $2,039,975 over 2y, 1.7% of budgetBRUNSWICK SCHOOL INC: $2,035,861 over 3y, 1.1% of budgetCHILDREN'S NATIONAL: $100,000 over 1y, 0.1% of budgetKennebunkport Conservation Trust: $23,000 over 6y, 1.1% of budgetUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $10,000 over 1y, 0.0% of budgetKENNEBUNKPORT HERITAGE HOUSING TRUST: $10,000 over 2y, 5.6% of budgetFRIENDS OF THE PORTLAND COMMUNITY FREE CLINIC: $6,000 over 2y, 0.2% of budgetGILLEN BREWER SCHOOL: $5,000 over 1y, 0.1% of budgetDempsey Center for Quality Cancer Care: $5,000 over 1y, 0.1% of budgetUnited States Ski Team Foundation: $5,000 over 1y, 0.0% of budgetPATIENT AIRLIFT SERVICES INC: $5,000 over 1y, 0.3% of budgetNY POLICE AND FIRE WIDOWS' & CHILDREN'S BENEFIT FUND INC: $5,000 over 1y, 0.1% of budgetROUND HILL VOLUNTEER FIRE COMPANY INC: $5,000 over 4y, 0.4% of budgetMETROPOLITAN MUSEUM OF ART: $5,000 over 1y, 0.0% of budgetTHE BARBARA BUSH FOUNDATION FOR FAMILY LITERACY INC: $5,000 over 1y, 0.1% of budgetKennebunkport Emergency Medical Services Inc: $3,000 over 3y, 0.2% 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.

The Goldman Sachs Cha…Morgan Stanley Global…Gs Donor Advised Phil…National Philanthropi…The Pfizer Foundation…Charities Aid Foundat…Vanguard Charitable E…American Online Givin…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
The Goldman Sachs Charitable Gift FundNY12.8× affinity4 shared granteesties to 10 of 10Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · Morgan Stanley Global Impact Funding Trust Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · The Pfizer Foundation Inc · Charities Aid Foundation America · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · 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 Timothy J And Linda D O'Neill Foundation funds: left to right is the share of its income from government, bottom to top the share from Timothy J And Linda D O'Neill Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →
    no gov moneyreceives it· size = income
    2get no government money at all
    5report 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 Timothy J And Linda D O'Neill Foundation?

    Find your warmest path to Timothy J And Linda D O'Neill 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 29 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 2026, released 2026. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Timothy J And Linda D O'Neill’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
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    $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