Skip to content

New York · Private foundation

Kotsen Family 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.

$28k
Granted FY2025(still arriving)
6
Grants FY2025
3
Organizations funded FY2024
0%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$2,500
Largest grant, FY2025
$11,300
Organizations funded a year
3 to 8
FY2018 to FY2024
States reached, FY2025
4
Total assets, FY2025
$621k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 0% of the organizations Kotsen Family 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; $0 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
EducationInternationalCivil RightsHuman ServicesHealthOther
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 arriving6$28k50%
FY20243$26k0%
FY20234$28k50%
FY20223$10k33%
FY20218$33k38%
FY20206$49k33%
FY20198$48k63%
FY20183$27k0%
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$223kArts & Culture$25kPhilanthropy$19kRecreation & Sports$3kHealth$2kHuman Services$1kEnvironment$1kCivil Rights$500Other$0

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
Metropolitan Montessori School$92,00050%
Dwight-Englewood School$30,00020%
The Trustees of Princeton University$29,36470%
Music Will Inc$24,00050%
American School in London Foundation$17,70030%
Trustees of Boston College$11,30010%
Trustees of Tufts College$6,50020%
Barnard College$6,10030%
Martha's Vineyard Cerebral Palsy Camp Inc$2,50010%
Burnt Store-Ppyc Charitable Boating Foundation$1,0001n/a
Show all 15 grantees
All grantees of Kotsen Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Metropolitan Montessori School$92,00050%
Dwight-Englewood School$30,00020%
The Trustees of Princeton University$29,36470%
Music Will Inc$24,00050%
American School in London Foundation$17,70030%
Trustees of Boston College$11,30010%
Trustees of Tufts College$6,50020%
Barnard College$6,10030%
Martha's Vineyard Cerebral Palsy Camp Inc$2,50010%
Burnt Store-Ppyc Charitable Boating Foundation$1,0001n/a
Trevor Project Inc$1,00010%
Friends of Sean Lugano Inc$1,0001n/a
New York Public Radio$60020%
Memorial Sloan-Kettering Cancer Center$50010%
Trekking for Kids Inc$25010%

Plus 6 recipients with no EIN on record ($51k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Kotsen Family Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMetropolitan Montessori School: $92,000 over 5y, 0.4% of budgetDwight-Englewood School: $30,000 over 2y, 0.1% of budgetThe Trustees of Princeton University: $29,364 over 7y, 0.0% of budgetMusic Will Inc: $24,000 over 5y, 0.1% of budgetAmerican School in London Foundation: $17,700 over 3y, 0.0% of budgetTrustees of Boston College: $11,300 over 1y, 0.0% of budgetTrustees of Tufts College: $6,500 over 2y, 0.0% of budgetBarnard College: $6,100 over 3y, 0.0% of budgetMartha's Vineyard Cerebral Palsy Camp Inc: $2,500 over 1y, 0.2% of budgetTrevor Project Inc: $1,000 over 1y, 0.0% of budgetNew York Public Radio: $600 over 2y, 0.0% of budgetMemorial Sloan-Kettering Cancer Center: $500 over 1y, 0.0% of budgetTrekking for Kids Inc: $250 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 13.

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 Charitable Gift FundNY13× affinity4 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · Charities Aid Foundation America · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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.

Compare Kotsen Family Foundation with peer funders

About Kotsen Family Foundation

How much does Kotsen Family Foundation give?
Kotsen Family Foundation reported 6 grants totaling $28,388 in its FY2025 IRS filing. It funded between 3 and 8 organizations a year over FY2018 to FY2024.
What does Kotsen Family Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (81%), Arts & Culture (9%), Philanthropy (7%).
Who are Kotsen Family Foundation's largest grantees?
By total granted over FY2017 to FY2025: Metropolitan Montessori School ($92k), Dwight-Englewood School ($30k), The Trustees of Princeton University ($29k).
Does Kotsen Family Foundation fund new organizations?
In FY2024, 0% of the organizations it funded were first-time grantees.
Does Kotsen Family 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 Kotsen Family Foundation?
Its strongest co-funders, measured against what their size predicts, include The Goldman Sachs Charitable Gift Fund, Charities Aid Foundation America, The Bank of America Charitable Foundation Inc.
Where is Kotsen Family Foundation based?
Kotsen Family 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 22 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

Play a game based on Kotsen Family’s filings →

More from the funding graph