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New York · Private foundation

The Deane A and John D Gilliam 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.

$2.4M
Granted FY2025(still arriving)
65
Itemized grants FY2025
41
Organizations funded FY2024
39%
First-time grantees FY2024
Read the full brief
Itemized, FY2025
$1.4M
The rest is grants the schedule does not break out
Median grant, FY2025
$1,460
Largest grant, FY2025
$200,000
Organizations funded a year
41 to 51
FY2022 to FY2024
States reached, FY2025
14
Total assets, FY2025
$8.7M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 39% of the organizations The Deane A and John D Gilliam Foundation funded were first-time grantees, receiving 44% of its grant dollars.

New vs renewed · share of each year

In FY2024, 56% of grant dollars renewed an existing relationship; $65k went to new ones.

50%100%’23’24
RenewedFirst-time

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

’23’24
Arts & CultureEducationEnvironmentHuman ServicesRecreation & SportsHealthOther
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
FY2025still arriving53$1.4M38%
FY202441$147k39%
FY202349$263k22%
FY202251$152kn/a
94% classified

What it funded, over time

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

Environment$469kEducation$418kArts & Culture$317kRecreation & Sports$200kHuman Services$133kReligion$126kYouth Development$92kAnimals$29kOther$0

Top grantees

Largest recipients by total granted, FY2022 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Salisbury School Inc$289,00041%
Marsh Sanctuary Inc$204,00023%
Central Park Conservancy Inc$164,00030%
World Wildlife Fund Inc$153,39020%
Manhattan Theatre Club Inc$126,75040%
Mianus River Gorge Inc$101,50022%
Single Parent Resource Center$100,0001n/a
Avon Old Farms School Inc$85,00040%
Ballet Theatre Foundation Inc$30,00010%
Wellesley College$27,75030%
Show all 53 grantees
All grantees of The Deane A and John D Gilliam Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Salisbury School Inc$289,00041%
Marsh Sanctuary Inc$204,00023%
Central Park Conservancy Inc$164,00030%
World Wildlife Fund Inc$153,39020%
Manhattan Theatre Club Inc$126,75040%
Mianus River Gorge Inc$101,50022%
Single Parent Resource Center$100,0001n/a
Avon Old Farms School Inc$85,00040%
Ballet Theatre Foundation Inc$30,00010%
Wellesley College$27,75030%
564 Park Avenue Preservation Foundation$25,0001n/a
Capital Harmony Works Inc$21,00021%
Health Advocates for Older People Inc$17,96020%
The American Society for the Prevention of Cruelty to Animals$15,0001n/a
Ravinia Festival Association$15,00010%
University School$14,00030%
The Trustees of Princeton University$11,75040%
Incarnation Center Inc$10,00010%
Indian Mountain School Inc$9,00040%
McCarter Theatre Company$7,50010%
Northern Westchester Hospital Association$6,25020%
The Windward School$5,95030%
Lehigh University$5,90040%
Foundation for Free Flight$5,75023%
Fund for Park Avenue New York Inc$5,50040%
United States Hang Gliding and Paragliding Association Inc$5,0001n/a
Single Parent Resource Center Inc$5,00011%
Northeast Little League Inc$5,0001n/a
The Frederick Gunn School Inc$5,00030%
Whitney Museum of American Art$4,77640%
The Baldwin School$3,00020%
Cub Scout Pack 131$3,0001n/a
Honorable Order of Kentucky Colonels Inc$2,50030%
American Heart Association Inc$2,50030%
The Allen-Stevenson School$2,20040%
Museum of Modern Art$2,15840%
City Gardens Club of New York City$1,80520%
Westchester Land Trust Inc$1,54030%
Metropolitan Museum of Art$1,31020%
Katonah-Bedford Hills Volunteer Ambulance Corp$1,00010%
The Union Club Foundation$1,0001n/a
Consumer Reports Inc$1,00010%
Princeton Einstein Museum Inc$1,00011%
Corner House Foundation$1,00010%
Center for Comprehensive Health Practice Inc$1,0001n/a
American Museum of Natural History$82530%
National Geographic Society$6001n/a
New York Veteran Police Association Inc$60010%
Bedford Riding Lanes Association$5001n/a
The Buckley School$50010%
Sound Beach Volunteer Services Foundation Inc$45010%
Smithsonian Institution$15010%
New York Police Chiefs' Foundation Inc$10010%

What it could do for these grantees

Plus 45 recipients with no EIN on record ($418k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Deane A and John D Gilliam Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetSalisbury School Inc: $289,000 over 4y, 0.6% of budgetMarsh Sanctuary Inc: $204,000 over 2y, 3.4% of budgetCentral Park Conservancy Inc: $164,000 over 3y, 0.1% of budgetWorld Wildlife Fund Inc: $153,390 over 2y, 0.0% of budgetManhattan Theatre Club Inc: $126,750 over 4y, 0.3% of budgetMianus River Gorge Inc: $101,500 over 2y, 2.2% of budgetAvon Old Farms School Inc: $85,000 over 4y, 0.1% of budgetBallet Theatre Foundation Inc: $30,000 over 1y, 0.1% of budgetWellesley College: $27,750 over 3y, 0.0% of budgetCapital Harmony Works Inc: $21,000 over 2y, 0.9% of budgetHealth Advocates for Older People Inc: $17,960 over 2y, 0.2% of budgetRavinia Festival Association: $15,000 over 1y, 0.0% of budgetUniversity School: $14,000 over 3y, 0.0% of budgetThe Trustees of Princeton University: $11,750 over 4y, 0.0% of budgetIncarnation Center Inc: $10,000 over 1y, 0.2% of budgetIndian Mountain School Inc: $9,000 over 4y, 0.0% of budgetMcCarter Theatre Company: $7,500 over 1y, 0.1% of budgetNorthern Westchester Hospital Association: $6,250 over 2y, 0.0% of budgetThe Windward School: $5,950 over 3y, 0.0% of budgetLehigh University: $5,900 over 4y, 0.0% of budgetFoundation for Free Flight: $5,750 over 2y, 3.3% of budgetFund for Park Avenue New York Inc: $5,500 over 4y, 0.2% of budgetSingle Parent Resource Center Inc: $5,000 over 1y, 0.6% of budgetThe Frederick Gunn School Inc: $5,000 over 3y, 0.0% of budgetWhitney Museum of American Art: $4,776 over 4y, 0.0% of budgetThe Baldwin School: $3,000 over 2y, 0.0% of budgetHonorable Order of Kentucky Colonels Inc: $2,500 over 3y, 0.0% of budgetAmerican Heart Association Inc: $2,500 over 3y, 0.0% of budgetThe Allen-Stevenson School: $2,200 over 4y, 0.0% of budgetMuseum of Modern Art: $2,158 over 4y, 0.0% of budgetCity Gardens Club of New York City: $1,805 over 2y, 0.1% of budgetWestchester Land Trust Inc: $1,540 over 3y, 0.0% of budgetMetropolitan Museum of Art: $1,310 over 2y, 0.0% of budgetKatonah-Bedford Hills Volunteer Ambulance Corp: $1,000 over 1y, 0.3% of budgetConsumer Reports Inc: $1,000 over 1y, 0.0% of budgetPrinceton Einstein Museum Inc: $1,000 over 1y, 1.4% of budgetCorner House Foundation: $1,000 over 1y, 0.4% of budgetAmerican Museum of Natural History: $825 over 3y, 0.0% of budgetNew York Veteran Police Association Inc: $600 over 1y, 0.1% of budgetThe Buckley School: $500 over 1y, 0.0% of budgetSound Beach Volunteer Services Foundation Inc: $450 over 1y, 0.2% of budgetSmithsonian Institution: $150 over 1y, 0.0% of budgetNew York Police Chiefs' Foundation Inc: $100 over 1y, 0.1% 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 43.

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.

Chubb Charitable FoundationPA14.4× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Chubb Charitable Foundation · The New York Community Trust · The Goldman Sachs Charitable Gift Fund · The Robert Wood Johnson Foundation · Ibm International Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Jewish Communal Fund · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Vanguard Charitable Endowment Program · The Blackbaud Giving Fund · Jpmorgan Chase 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.

Compare The Deane A and John D Gilliam Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Deane A and John D Gilliam Foundation?

Find your warmest path to The Deane A and John D Gilliam 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.

About The Deane A and John D Gilliam Foundation

How much does The Deane A and John D Gilliam Foundation give?
The Deane A and John D Gilliam Foundation reported 65 itemized grants totaling $1,367,480, out of $2,378,480 in total grant expense reported on the return in its FY2025 IRS filing. It funded between 41 and 51 organizations a year over FY2022 to FY2024.
What does The Deane A and John D Gilliam Foundation fund?
By grant dollars over FY2022 to FY2025, its largest causes are Environment (10%), Education (9%), Arts & Culture (7%).
Who are The Deane A and John D Gilliam Foundation's largest grantees?
By total granted over FY2022 to FY2025: Salisbury School Inc ($289k), Marsh Sanctuary Inc ($204k), Central Park Conservancy Inc ($164k).
Does The Deane A and John D Gilliam Foundation fund new organizations?
In FY2024, 39% of the organizations it funded were first-time grantees.
Does The Deane A and John D Gilliam Foundation 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 The Deane A and John D Gilliam Foundation?
Its strongest co-funders, measured against what their size predicts, include Chubb Charitable Foundation, The New York Community Trust, The Goldman Sachs Charitable Gift Fund.
Where is The Deane A and John D Gilliam Foundation based?
The Deane A and John D Gilliam Foundation is based in NY.

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 98 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

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