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Delaware · Private foundation

Mary A & Thomas F Grasselli Endowment 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.

$104k
Granted FY2025(still arriving)
21
Grants FY2025
18
Organizations funded FY2024
17%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$3,000
Largest grant, FY2025
$23,000
Organizations funded a year
17 to 24
FY2018 to FY2024
States reached, FY2025
8
Total assets, FY2025
$1.2M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 17% of the organizations Mary A & Thomas F Grasselli Endowment Foundation funded were first-time grantees, receiving 9% of its grant dollars.

New vs renewed · share of each year

In FY2024, 91% of grant dollars renewed an existing relationship; $8k 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
Arts & CultureEnvironmentEducationHealthAnimalsFood & NutritionOther
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 arriving20$102k30%
FY202418$92k17%
FY202317$90k6%
FY202223$110k13%
FY202120$85k20%
FY202018$78k33%
FY201924$86k25%
FY201822$83k41%
100% classified

What it funded, over time

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

Education$347kArts & Culture$135kAnimals$68kHealth$58kPublic Safety & Disaster$57kEnvironment$39kRecreation & Sports$31kHuman Services$28kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

NY
MA
IA
OH
PA
NJ
CT
RI
CA
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.

Show all 55 grantees
All grantees of Mary A & Thomas F Grasselli Endowment Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Student Partner Alliance a New Jersey Non-Profit Corporation$156,00093%
The Buckley School in the City of New York$67,50070%
Eanes Education Foundation$64,50080%
The Frick Collection$54,70070%
The Museum of Fine Arts Houston$35,00050%
Cleveland Zoological Society$25,00060%
Summit Area Young Men's Christian Association a Nj Nonprofit Corporation$20,75090%
Easter Seals of Greater Houston Inc$19,80070%
Houston Tennis Association Inc$17,75061%
Trustees of Deerfield Academy$16,50050%
The Endowment for the Museum of Fine Arts Houston$15,0002n/a
International Fund for Animal Welfare Inc$15,00030%
Cornell University$14,80070%
Austin Youth River Watch$14,00041%
Barnard College$14,00050%
Houston Zoo Inc$11,70090%
Westlake United Methodist Church$10,0002n/a
Hill Country Conservancy$10,00020%
CancerAGoGo$10,00017%
Austin Pets Alive Inc$9,50040%
Americas Foundation-Fundacion De Las Americas$9,40051%
Streetsquash Inc$8,00020%
Central Texas Food Bank Inc$7,50020%
Franciscan Charities$7,00031%
Alley Theatre$6,50020%
Western Reserve Historical Society$5,00010%
Alexs Lemonade Stand Foundation$5,00010%
Friends of Barc Inc$4,5001n/a
Trustees of the Lawrenceville School$4,50020%
Lakeview Cemetery Foundation$4,08430%
The Houston Food Bank$4,00010%
Friends of the Colorado River Foundation$3,50011%
Metropolitan Museum of Art$3,30020%
Florence Griswold Museum Inc$3,00010%
Land Studio Inc$3,00020%
Conway School of Landscape Design Inc$3,00010%
TreeFolks Inc$3,00010%
Dominican Nuns of the Perpetual Rosary$2,5002n/a
Menil Foundation Inc$2,50010%
Houston Arboretum & Nature Center$2,50010%
Citizens For Animal Protection Inc$2,30020%
New York Botanical Garden$2,25020%
Overlook Foundation$2,00010%
Team Woofgang & Co Inc$2,00020%
Memorial Park Conservancy Inc$2,00010%
Episcopal Diocese of Ohio$2,0001n/a
Lincoln Center for the Performing Arts Inc$1,25010%
Family Promise Inc$1,00010%
River Oaks Garden Club$1,00010%
Cleveland Museum of Art$1,00010%
Order of Saint Benedict of New Jersey$1,0001n/a
Kids of Kilimanjaro Inc$1,0001n/a
The Ocean Community United Theatre Inc$1,00010%
Mobile Loaves & Fishes Inc$50010%
Vassar College$25010%

What it could do for these grantees

Plus 6 recipients with no EIN on record ($89k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Mary A & Thomas F Grasselli Endowment Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetStudent Partner Alliance a New Jersey Non-Profit Corporation: $156,000 over 9y, 2.8% of budgetThe Buckley School in the City of New York: $67,500 over 7y, 0.1% of budgetEanes Education Foundation: $64,500 over 8y, 0.4% of budgetThe Frick Collection: $54,700 over 7y, 0.0% of budgetThe Museum of Fine Arts Houston: $35,000 over 5y, 0.0% of budgetCleveland Zoological Society: $25,000 over 6y, 0.1% of budgetSummit Area Young Men's Christian Association a Nj Nonprofit Corporation: $20,750 over 9y, 0.0% of budgetEaster Seals of Greater Houston Inc: $19,800 over 7y, 0.0% of budgetHouston Tennis Association Inc: $17,750 over 6y, 0.6% of budgetTrustees of Deerfield Academy: $16,500 over 5y, 0.0% of budgetInternational Fund for Animal Welfare Inc: $15,000 over 3y, 0.0% of budgetCornell University: $14,800 over 7y, 0.0% of budgetAustin Youth River Watch: $14,000 over 4y, 1.1% of budgetBarnard College: $14,000 over 5y, 0.0% of budgetHouston Zoo Inc: $11,700 over 9y, 0.0% of budgetHill Country Conservancy: $10,000 over 2y, 0.4% of budgetCancerAGoGo: $10,000 over 1y, 6.7% of budgetAustin Pets Alive Inc: $9,500 over 4y, 0.0% of budgetAmericas Foundation-Fundacion De Las Americas: $9,400 over 5y, 1.3% of budgetStreetsquash Inc: $8,000 over 2y, 0.1% of budgetCentral Texas Food Bank Inc: $7,500 over 2y, 0.0% of budgetFranciscan Charities: $7,000 over 3y, 0.5% of budgetAlley Theatre: $6,500 over 2y, 0.0% of budgetWestern Reserve Historical Society: $5,000 over 1y, 0.1% of budgetAlexs Lemonade Stand Foundation: $5,000 over 1y, 0.0% of budgetTrustees of the Lawrenceville School: $4,500 over 2y, 0.0% of budgetLakeview Cemetery Foundation: $4,084 over 3y, 0.1% of budgetThe Houston Food Bank: $4,000 over 1y, 0.0% of budgetFriends of the Colorado River Foundation: $3,500 over 1y, 0.7% of budgetMetropolitan Museum of Art: $3,300 over 2y, 0.0% of budgetFlorence Griswold Museum Inc: $3,000 over 1y, 0.1% of budgetLand Studio Inc: $3,000 over 2y, 0.1% of budgetConway School of Landscape Design Inc: $3,000 over 1y, 0.3% of budgetTreeFolks Inc: $3,000 over 1y, 0.1% of budgetMenil Foundation Inc: $2,500 over 1y, 0.0% of budgetHouston Arboretum & Nature Center: $2,500 over 1y, 0.1% of budgetCitizens For Animal Protection Inc: $2,300 over 2y, 0.0% of budgetNew York Botanical Garden: $2,250 over 2y, 0.0% of budgetOverlook Foundation: $2,000 over 1y, 0.0% of budgetTeam Woofgang & Co Inc: $2,000 over 2y, 0.2% of budgetMemorial Park Conservancy Inc: $2,000 over 1y, 0.0% of budgetLincoln Center for the Performing Arts Inc: $1,250 over 1y, 0.0% of budgetFamily Promise Inc: $1,000 over 1y, 0.0% of budgetRiver Oaks Garden Club: $1,000 over 1y, 0.1% of budgetCleveland Museum of Art: $1,000 over 1y, 0.0% of budgetThe Ocean Community United Theatre Inc: $1,000 over 1y, 0.0% of budgetMobile Loaves & Fishes Inc: $500 over 1y, 0.0% of budgetVassar College: $250 over 1y, 0.0% 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 48.

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.

Austin Community Foundation IncTX18.4× affinity7 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Austin Community Foundation Inc · Jacob and Terese Hershey Foundation · The Ayco Charitable Foundation · Greater Houston Community Foundation · Shield-Ayres Foundation · The Cleveland Foundation · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Shell USA Company Foundation · The Blackbaud Giving Fund · Charities Aid Foundation America

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 Mary A & Thomas F Grasselli Endowment Foundation with peer funders

About Mary A & Thomas F Grasselli Endowment Foundation

How much does Mary A & Thomas F Grasselli Endowment Foundation give?
Mary A & Thomas F Grasselli Endowment Foundation reported 21 grants totaling $104,000 in its FY2025 IRS filing. It funded between 17 and 24 organizations a year over FY2018 to FY2024.
What does Mary A & Thomas F Grasselli Endowment Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (43%), Arts & Culture (17%), Animals (8%).
Who are Mary A & Thomas F Grasselli Endowment Foundation's largest grantees?
By total granted over FY2017 to FY2025: Student Partner Alliance a New Jersey Non-Profit Corporation ($156k), The Buckley School in the City of New York ($68k), Eanes Education Foundation ($65k).
Does Mary A & Thomas F Grasselli Endowment Foundation fund new organizations?
In FY2024, 17% of the organizations it funded were first-time grantees.
Does Mary A & Thomas F Grasselli Endowment 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 Mary A & Thomas F Grasselli Endowment Foundation?
Its strongest co-funders, measured against what their size predicts, include Austin Community Foundation Inc, Jacob and Terese Hershey Foundation, The Ayco Charitable Foundation.
Where is Mary A & Thomas F Grasselli Endowment Foundation based?
Mary A & Thomas F Grasselli Endowment Foundation is based in DE.

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 63 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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