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New York · 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 FY2025(still arriving)
97
Grants FY2025
99
Organizations funded FY2024
24%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$2,500
Largest grant, FY2025
$65,500
Organizations funded a year
86 to 99
FY2018 to FY2024
States reached, FY2025
17
Total assets, FY2025
$5.8M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 24% of the organizations Cyril F & Marie O'Neil Foundation funded were first-time grantees, receiving 23% of its grant dollars.

New vs renewed · share of each year

In FY2024, 77% of grant dollars renewed an existing relationship; $104k went to new ones.

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

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

’18’19’20’21’22’23’24
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving93$416k23%
FY202499$450k24%
FY202393$364k19%
FY202291$366k30%
FY202196$412k22%
FY202088$352k22%
FY201988$371k20%
FY201886$343k26%
96% 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

Where its grants go

Grant dollars by states, across the years we hold.

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

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Society of the Sacred Heart United States Canada Province Inc$602,5009n/a
The Wang Center for the Performing Arts Inc$104,45090%
Colorado Outward Bound School$102,50081%
Corporation of St Timothy's School$90,00090%
Metropolitan Museum of Art$87,50080%
Cleveland Hearing and Speech Center$81,50090%
The Rivers School Corporation$65,55050%
Hope Ignites Northeastern Ohio Inc$62,50090%
Ouray Ice Park Inc$61,00064%
WGBH Educational Foundation$60,20020%
Show all 172 grantees
All grantees of Cyril F & Marie O'Neil Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Society of the Sacred Heart United States Canada Province Inc$602,5009n/a
The Wang Center for the Performing Arts Inc$104,45090%
Colorado Outward Bound School$102,50081%
Corporation of St Timothy's School$90,00090%
Metropolitan Museum of Art$87,50080%
Cleveland Hearing and Speech Center$81,50090%
The Rivers School Corporation$65,55050%
Hope Ignites Northeastern Ohio Inc$62,50090%
Ouray Ice Park Inc$61,00064%
WGBH Educational Foundation$60,20020%
Child Mind Institute Inc$51,50070%
Tabor Academy$43,80090%
Lewis & Clark College$40,50080%
Fair Chance$40,00070%
Maloto Inc$39,50081%
Leading With Love Inc$35,600732%
Denison University$32,00040%
New Profit Inc$32,00050%
Emory University$30,00030%
The Nuci Phillips Memorial Foundation Inc$29,50081%
Colorado Academy$27,00090%
Trustees of Boston University$26,10080%
Westside Pacific Villages$25,75074%
Boulder Parks and Recreation Foundation$25,50072%
University of Richmond$23,50080%
Pencils for Kids Inc$22,00094%
Ransom Everglades School Inc$21,50050%
Dream With Me Foundation$21,000692%
Bon Secours - St Mary's Hospital of Richmond Inc$21,0001n/a
Young Leadership Addiction Awareness Inc$21,00043%
Choate Rosemary Hall Foundation Incorporated$20,50090%
University of Colorado Foundation$20,50060%
Anna Julia Cooper School$19,50020%
Denver Academy Inc$18,00090%
Roundup River Ranch$18,00090%
Vail Symposium$16,50090%
Barnard College$16,00070%
Trustees of Westminster School Inc$16,00040%
The J Paul Getty Trust$15,00040%
President and Fellows of Middlebury College$15,00090%
Georgetown University$14,50090%
The Conscious Alliance$14,50060%
Nantucket Historical Association$14,25040%
National Links Trust$14,00030%
Fairview High School Parents Organi$13,500310%
Share Our Strength$12,50060%
More Than Words Inc$11,50050%
Jorge M Perez Art Museum of Miami-Dade County Inc$11,50050%
Freedom Institute Inc$11,00010%
Hope for Honduran Children Foundation$11,00092%
The Rockefeller University$10,00010%
Big Brothers Big Sisters of the Des$10,00012%
Boca Grande Health Clinic Fndtn Inc$10,00010%
Whitney Museum of American Art$10,00010%
Walking Mountains$9,00090%
The First Tee of Greater Washington DC Langston Golf Course$9,00030%
Johann Fust Library Foundation Inc$9,00090%
Pine Street Inn Inc$8,00050%
Music-Theatre Group Inc$8,00029%
Greater Boston Food Bank Inc$8,00060%
The Vincent Club Inc$7,75031%
Dzi Foundation$7,70060%
Friends of Boca Grande Community Center Inc$7,50080%
University of Denver$7,50020%
Vail Health Services Foundation$7,00080%
Worcester Polytechnic Institute$7,00010%
University of California Berkeley Foundation$7,00030%
Friends of the Wright Opera House Inc$7,00041%
Bright Future Foundation for Eagle County$6,50090%
The Ocean Foundation$6,50050%
Boulder High School Panther Club$6,50042%
The American Alpine Club$6,40050%
Flatirons Elementary PTO$6,00033%
Vilar Performing Arts Center Inc$6,00040%
University School$6,00030%
The Colorado College$6,00060%
Stephen Siller Tunnel to Towers Foundation$5,50040%
Trustees of Boston College$5,50020%
Boys & Girls Club of Greenwich$5,50010%
Rosie's Place Inc$5,50050%
New England Aquarium Corporation$5,50030%
The Literacy Project$5,00041%
Epiphany Catholic Church$5,0002n/a
Notre Dame Cristo Rey High School Inc$5,00010%
Public Broadcasting of Colorado Inc$5,00090%
Catholic Charities USA$5,0001n/a
Hope Ignites$5,00010%
Rollins College$5,00030%
Open Learning Exchange Inc$5,00016%
There With Care$4,50030%
Breakthrough Miami Inc$4,50030%
Heading Home Inc$4,25050%
George & Michael Gardner Fund$4,00027%
The Home Team - Miami Inc$4,00012%
University of Hartford$4,00020%
Creative Time Inc$4,00040%
Bridge Over Troubled Waters Inc$4,00060%
Child and Family Advocacy Program$4,00040%
Incarnation Center Inc$4,00010%
Betty Ford Alpine Gardens$4,00080%
Boys & Girls Club of Coachella Valley$3,75010%
St Stephens Episcopal School$3,5002n/a
Seattle Children's Foundation$3,50030%
Concern Worldwide (Us) Inc$3,50010%
Planned Parenthood League of Massachusetts Inc$3,50020%
City Year Inc$3,50020%
Fundacion Luchemos Por la Vida Inc$3,5001n/a
Endeavor Miami Inc$3,36020%
American Rivers Inc$3,00030%
Ouray County Food Pantry$3,0002n/a
Friends of Mountain Rescue Inc$3,00060%
Gamma Phi Beta Foundation$3,00020%
World Central Kitchen Inc$3,00030%
Family Learning Center$3,00030%
Nickerson-Rossi Dance$3,0001n/a
The Hetrick-Martin Institute Inc$2,70010%
The Steward School$2,50010%
Nantucket Conservation Foundation Inc$2,50030%
Cancer Research Fund of the Damon Runyon-Walter Winchell Foundation$2,50010%
Babson College$2,50010%
Boston Harbor Now Inc$2,50010%
Charles M Vallee Foundation for Long Covid Research Inc$2,5001n/a
Rocky Mountain Public Media Inc$2,50050%
Wainscott Windmill Fund$2,50011%
The Literacy Project$2,00020%
The Innocence Project Inc$2,00010%
Leaders in Our Neighborhood Charter School$2,00020%
Convent of the Sacred Heart$2,0001n/a
Prescott College Inc$2,00020%
The Denver Children's Foundation$2,00010%
Sophie's Neighborhood$2,00012%
Pennys Flight Foundation Inc$2,00010%
Ouray Mountain Rescue Team Inc$2,00011%
Oncafari International Inc$2,00011%
Friends of Belmont Public Library Inc$1,70041%
Saint Francis House Inc$1,50020%
Meals on Wheels Inc$1,50010%
The Wily Network$1,50010%
St Agnes Church$1,5001n/a
Royal Palm Players Inc$1,50020%
Boulder Community Health Foundation$1,50010%
Nantucket Atheneum Inc$1,50030%
Als One Inc$1,50010%
Freedom Reads Inc$1,50020%
City Harvest Inc$1,00010%
Graland Country Day School$1,00010%
Trustees of Tufts College$1,00010%
Nantucket Garden Club Inc$1,00011%
Hospital Hospitality House Corporation$1,00010%
Wounded Warrior Project Inc$1,00010%
East Hampton Town Pba$1,00010%
Neuroendocrine Tumor Research Foundation$1,00010%
Penta Medical Recycling Corp$1,00010%
564 Park Avenue Preservation Foundation$1,00010%
Vietnam Veterans Workshop Inc Dba New England Center and Home for Veterans$1,00010%
The Howard University$1,00010%
Pan-Massachusetts Challenge Inc$75020%
National Tropical Botanical Garden$75020%
Mercy Corps$60020%
Welcome House Inc$50010%
Eagle River Watershed Council$50010%
Nantucket Preservation Trust Inc$50010%
The Access Fund$50010%
Greater Washington Educational Telecommunications Association Inc$50010%
Greater Cleveland Youth for Christ Inc$50010%
Swim Across America Inc$50010%
New York City Ballet Inc$50010%
Artists Association of Nantucket Inc$50010%
Journey Center for Safety and Healing$50010%
Medecins Sans Frontieres USA Inc$50010%
Cleveland Rape Crisis Center$25010%
Hopewell$25010%

What it could do for these grantees

Plus 89 recipients with no EIN on record ($741k), not named here.

Where it is load-bearing

Cyril F & Marie O'Neil Foundation supplied at least a quarter of the budget for 2 of its grantees at some point. The chart plots its 161 largest grantees; load-bearing ones sit top left.

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 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 budgetHope for Honduran Children Foundation: $11,000 over 9y, 1.9% 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 161.

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.

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.

Compare Cyril F & Marie O'Neil Foundation with peer funders

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.

About Cyril F & Marie O'Neil Foundation

How much does Cyril F & Marie O'Neil Foundation give?
Cyril F & Marie O'Neil Foundation reported 97 grants totaling $423,000 in its FY2025 IRS filing. It funded between 86 and 99 organizations a year over FY2018 to FY2024.
What does Cyril F & Marie O'Neil Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (29%), Religion (21%), Arts & Culture (13%).
Who are Cyril F & Marie O'Neil Foundation's largest grantees?
By total granted over FY2017 to FY2025: Society of the Sacred Heart United States Canada Province Inc ($603k), The Wang Center for the Performing Arts Inc ($104k), Colorado Outward Bound School ($103k).
Does Cyril F & Marie O'Neil Foundation fund new organizations?
In FY2024, 24% of the organizations it funded were first-time grantees.
Does Cyril F & Marie O'Neil 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 Cyril F & Marie O'Neil Foundation?
Its strongest co-funders, measured against what their size predicts, include Colorado Gives Foundation, The Denver Foundation, Western Colorado Community Foundation Inc.
Where is Cyril F & Marie O'Neil Foundation based?
Cyril F & Marie O'Neil 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 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

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