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New York · Private foundation

Thomas G & Andrea Mendell 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.

$218k
Granted FY2025(still arriving)
45
Grants FY2025
43
Organizations funded FY2024
5%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$1,000
Largest grant, FY2025
$30,531
Organizations funded a year
31 to 43
FY2018 to FY2024
States reached, FY2025
10
Total assets, FY2025
$802k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 5% of the organizations Thomas G & Andrea Mendell Foundation funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $750 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
EducationInternationalHealthFood & NutritionArts & CultureHousing & 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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving43$217k9%
FY202443$292k5%
FY202336$180k0%
FY202239$165k18%
FY202139$125k23%
FY202035$171k17%
FY201935$202k20%
FY201831$143k71%
97% classified

What it funded, over time

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

Health$653kEducation$596kArts & Culture$153kCivil Rights$81kYouth Development$41kHuman Services$19kCrime & Legal$15kInternational$13kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

VT
NY
MA
PA
NJ
CT
MO
VA
TN
SC
DC
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 52 grantees
All grantees of Thomas G & Andrea Mendell Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Cancer Research Institute Inc$377,06090%
Trustees of Tufts College$191,79560%
The Jed Foundation$175,35490%
Connecticut College$126,22670%
Vanderbilt University$125,81560%
School of American Ballet Inc$62,30090%
Manhattan Theatre Club Inc$58,00060%
Anti-Defamation League$50,85840%
Lymphoma Research Foundation$49,50070%
Common Ground Center Inc$35,00072%
National Alliance for Research on Schizophrenia and Depression$30,00060%
George School$28,0008n/a
Waterside School Inc$27,00040%
The National Mentoring Partnership Inc$25,57320%
Page Seventy-Three Productions Inc$20,00061%
The Osborne Association Inc$10,00060%
Helen Keller International$9,00060%
The Michael J Fox Foundation for Parkinson's Research$9,00090%
St Bernard's School Inc$9,00090%
The Fibrolamellar Cancer Foundation$8,00080%
Colgate University$8,00080%
The Rockefeller University$8,00080%
The Chapin School Ltd$8,00080%
A Better Balance Inc$4,50050%
Ballet Theatre Foundation Inc$4,20020%
Robin Hood Foundation$4,00040%
Leadership Enterprise for a Diverse America$4,00030%
Student Advocacy Inc$3,25080%
New York Common Pantry$2,95080%
Medecins Sans Frontieres USA Inc$2,75050%
Citymeals-On-Wheels$2,50050%
The Buoniconti Fund to Cure Paralysis Inc$2,50040%
The Posse Foundation Inc$2,50050%
City Harvest Inc$2,25050%
The Doe Fund Inc$2,00040%
Institute for the Study of War Inc$2,00050%
New Eyes for the Needy Inc$2,00080%
Hebrew Union College-Jewish Institute of Religion$1,8001n/a
Giving Alternative Learners Uplifting Opportunities Inc$1,75070%
Neighborhood Coalition for Shelter Inc$1,75070%
Gardens for Health International$1,50050%
Wounded Warrior Project Inc$1,50020%
The Salvation Army$5005n/a
Yale University$5001n/a
Operation Smile Inc$50020%
Westchester Golf Association Caddie Scholarship Fund Inc$50010%
Vermont Youth Conservation Corps Inc$30020%
Rainforest Trust$25010%
Pegasus Therapeutic Riding Inc$25010%
St Francis Hospital Foundation Inc$25010%
National Multiple Sclerosis Society$2501n/a
Fund for Park Avenue New York Inc$10010%

What it could do for these grantees

Plus 19 recipients with no EIN on record ($157k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Thomas G & Andrea Mendell Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCancer Research Institute Inc: $377,060 over 9y, 0.2% of budgetTrustees of Tufts College: $191,795 over 6y, 0.0% of budgetThe Jed Foundation: $175,354 over 9y, 0.3% of budgetConnecticut College: $126,226 over 7y, 0.0% of budgetVanderbilt University: $125,815 over 6y, 0.0% of budgetSchool of American Ballet Inc: $62,300 over 9y, 0.1% of budgetManhattan Theatre Club Inc: $58,000 over 6y, 0.1% of budgetAnti-Defamation League: $50,858 over 4y, 0.0% of budgetLymphoma Research Foundation: $49,500 over 7y, 0.1% of budgetCommon Ground Center Inc: $35,000 over 7y, 2.3% of budgetNational Alliance for Research on Schizophrenia and Depression: $30,000 over 6y, 0.0% of budgetWaterside School Inc: $27,000 over 4y, 0.4% of budgetThe National Mentoring Partnership Inc: $25,573 over 2y, 0.2% of budgetPage Seventy-Three Productions Inc: $20,000 over 6y, 0.6% of budgetThe Osborne Association Inc: $10,000 over 6y, 0.0% of budgetHelen Keller International: $9,000 over 6y, 0.0% of budgetThe Michael J Fox Foundation for Parkinson's Research: $9,000 over 9y, 0.0% of budgetSt Bernard's School Inc: $9,000 over 9y, 0.0% of budgetThe Fibrolamellar Cancer Foundation: $8,000 over 8y, 0.1% of budgetColgate University: $8,000 over 8y, 0.0% of budgetThe Rockefeller University: $8,000 over 8y, 0.0% of budgetThe Chapin School Ltd: $8,000 over 8y, 0.0% of budgetA Better Balance Inc: $4,500 over 5y, 0.0% of budgetBallet Theatre Foundation Inc: $4,200 over 2y, 0.0% of budgetRobin Hood Foundation: $4,000 over 4y, 0.0% of budgetLeadership Enterprise for a Diverse America: $4,000 over 3y, 0.1% of budgetStudent Advocacy Inc: $3,250 over 8y, 0.0% of budgetNew York Common Pantry: $2,950 over 8y, 0.0% of budgetMedecins Sans Frontieres USA Inc: $2,750 over 5y, 0.0% of budgetCitymeals-On-Wheels: $2,500 over 5y, 0.0% of budgetThe Buoniconti Fund to Cure Paralysis Inc: $2,500 over 4y, 0.0% of budgetThe Posse Foundation Inc: $2,500 over 5y, 0.0% of budgetCity Harvest Inc: $2,250 over 5y, 0.0% of budgetThe Doe Fund Inc: $2,000 over 4y, 0.0% of budgetInstitute for the Study of War Inc: $2,000 over 5y, 0.0% of budgetNew Eyes for the Needy Inc: $2,000 over 8y, 0.1% of budgetGiving Alternative Learners Uplifting Opportunities Inc: $1,750 over 7y, 0.0% of budgetNeighborhood Coalition for Shelter Inc: $1,750 over 7y, 0.0% of budgetGardens for Health International: $1,500 over 5y, 0.1% of budgetWounded Warrior Project Inc: $1,500 over 2y, 0.0% of budgetOperation Smile Inc: $500 over 2y, 0.0% of budgetWestchester Golf Association Caddie Scholarship Fund Inc: $500 over 1y, 0.0% of budgetVermont Youth Conservation Corps Inc: $300 over 2y, 0.0% of budgetRainforest Trust: $250 over 1y, 0.0% of budgetPegasus Therapeutic Riding Inc: $250 over 1y, 0.0% of budgetSt Francis Hospital Foundation Inc: $250 over 1y, 0.0% of budgetFund for Park Avenue New York Inc: $100 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 47.

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.

Jewish Communal FundNY20.4× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · The Goldman Sachs Charitable Gift Fund · Jpmorgan Chase Foundation · Community Foundation of New Jersey · The Sidley Austin Foundation · The Andrew W Mellon Foundation · National Philanthropic Trust · Vanguard Charitable Endowment Program · The Ayco Charitable Foundation · Morgan Stanley Global Impact Funding Trust Inc · The Chicago Community Trust · Silicon Valley Community 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 Thomas G & Andrea Mendell Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Thomas G & Andrea Mendell Foundation?

Find your warmest path to Thomas G & Andrea Mendell 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 Thomas G & Andrea Mendell Foundation

How much does Thomas G & Andrea Mendell Foundation give?
Thomas G & Andrea Mendell Foundation reported 45 grants totaling $218,153 in its FY2025 IRS filing. It funded between 31 and 43 organizations a year over FY2018 to FY2024.
What does Thomas G & Andrea Mendell Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Health (39%), Education (36%), Arts & Culture (9%).
Who are Thomas G & Andrea Mendell Foundation's largest grantees?
By total granted over FY2017 to FY2025: Cancer Research Institute Inc ($377k), Trustees of Tufts College ($192k), The Jed Foundation ($175k).
Does Thomas G & Andrea Mendell Foundation fund new organizations?
In FY2024, 5% of the organizations it funded were first-time grantees.
Does Thomas G & Andrea Mendell 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 Thomas G & Andrea Mendell Foundation?
Its strongest co-funders, measured against what their size predicts, include Jewish Communal Fund, The Goldman Sachs Charitable Gift Fund, Jpmorgan Chase Foundation.
Where is Thomas G & Andrea Mendell Foundation based?
Thomas G & Andrea Mendell 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 72 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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