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Tamara L Harris Foundation Inc at a glance

· Private foundation

Tamara L Harris Foundation Inc

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.

$270k
Granted FY2025still arriving
7
Grants FY2025still arriving
4
States reached
$100k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

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

Arts & Culture$731kCommunity Improvement$400kEducation$238kCivil Rights$185kYouth Development$143kHuman Services$130kHousing & Shelter$70kCrime & Legal$57kOther$0
02FY2025 · 7 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k6 grants · $170k
  • $50k–250k1 grant · $100k
$30,000
Median grant
4
States reached
$4.7M
Total assets
Largest grants
RecipientAmount
INSTITUTE FOR ENTREPRENEURIAL LEADERSHIP INC$100,000
GRIFFITH OBSERVATORY FOUNDATION$40,000
FLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC$35,000
THE MUSEUM OF CONTEMPORARY ART INC$30,000
CALIFORNIA STATE UNIVERSITY NORTHRIDGE FOUNDATION$30,000
CORPORATE COUNSEL WOMEN OF COLOR INC$25,000
LOS ANGELES PHILHARMONIC ASSOCIATION$10,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 16%, against an area that typically sits at 12%. 97% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%WELLESLEY COLLEGE: $13k → 7%MAGEE-WOMENS RESEARCH INSTITUTE AND FOUNDATION: $35k → 11%CALIFORNIA STATE UNIVERSITY NORTHRIDGE FOUNDATION: $30k → 14%NAACP LEGAL DEFENSE & EDUC FUND INC: $75k → 17%THE NASW FOUNDATION INC: $20k → 14%FEEDING SOUTH FLORIDA INC: $10k → 13%GUITARS OVER GUNS ORGANIZATION: $40k → 15%THE HISTORY MAKERS: $5k → 14%INSTITUTE FOR ENTREPRENEURIAL LEADERSHIP INC: $200k → 16%CALIFORNIA STATE UNIVERSITY NORTHRIDGE FOUNDATION: $10k → 14%NAACP LEGAL DEFENSE & EDUC FUND INC: $60k → 17%THE NASW FOUNDATION INC: $20k → 14%THE SUNDARI FOUNDATION INC: $50k → 15%INSTITUTE FOR ENTREPRENEURIAL LEADERSHIP INC: $100k → 16%GRIFFITH OBSERVATORY FOUNDATION: $40k → 14%NAACP LEGAL DEFENSE & EDUC FUND INC: $50k → 17%THE NASW FOUNDATION INC: $20k → 14%THE SUNDARI FOUNDATION INC: $20k → 15%INSTITUTE FOR ENTREPRENEURIAL LEADERSHIP INC: $100k → 16%THE MUSEUM OF CONTEMPORARY ART INC: $30k → 14%CANCER RESEARCH FUND OF THE DAMON RUNYON FND: $5k → 17%BIG BROTHERS BIG SISTERS OF ESSEX HUDSON AND UNION: $100k → 16%LOS ANGELES PHILHARMONIC ASSOCIATION: $10k → 14%NEW YORK UNIVERSITY - SILVER SCHOOL OF SOCIAL WORK: $25k → 17%MONTCLAIR KIMBERLEY ACADEMY FOUNDATION (MKA): $5k → 16%LOS ANGELES PHILHARMONIC ASSOCIATION: $10k → 14%NEW YORK UNIVERSITY - SILVER SCHOOL OF SOCIAL WORK: $25k → 17%THE MONTCLAIR ART MUSEUM: $2k → 16%THE MUSEUM OF CONTEMPORARY ART INC: $10k → 14%NEW YORK CITY BALLET INC: $1k → 17%PUBLIC MEDIA GROUP OF SOUTHERN CALIFORNIA: $10k → 14%NEW YORK UNIVERSITY - SILVER SCHOOL OF SOCIAL WORK: $20k → 17%WNET: $202k → 17%WNET: $58k → 17%WNET: $50k → 17%WNET: $50k → 17%PUBLIC MEDIA NJ INC (NJTV): $35k → 17%WNET: $20k → 17%THE PARTNERSHIP FOR AFTER SCHOOL EDUCATION INC: $3k → 17%THE NATIONAL CENTER ON ADDICTION AND SUBSTANCE: $2k → 17%NEW YORK CITY POLICE FOUNDATION INC: $2k → 17%THE SECOND STAGE THEATRE INC: $204k → 17%THE SECOND STAGE THEATRE INC: $25k → 17%THE SECOND STAGE THEATRE INC: $10k → 17%TEACH FOR AMERICA INC: $20k → 17%TEACH FOR AMERICA INC (NEW JERSEY): $5k → 17%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

IL
NY
MA
PA
NJ
CA
DC
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

84%of every dollar goes to organizations it has funded before.
$1.7M · 12 repeat orgs$332k to everyone else

Grantees it renews have grown median revenue +35% since the first grant, against +32% for those funded once.

12 repeat relationships: 6 still active in FY2025, 6 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

12
17

Total granted

$1.7M
$292k

Median revenue growth · since first grant

+35%
+32%

Still filing today

92%
71%

New vs renewed · share of each year

In FY2025, 85% of grant dollars renewed an existing relationship; $40k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Arts & CultureEducationScience & TechCommunity ImprovementYouth DevelopmentCrime & LegalOther
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.

Backed again, and grew

  • TS
    THE SECOND STAGE THEATRE INC
    3× · 2017–2022 · $239k · revenue +159%
  • NAACP LEGAL DEFENSE & EDUC FUND INC
    3× · 2019–2022 · $185k · revenue +84%
  • FI
    FLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC
    6× · 2020–2025 · $155k · revenue +25%

Funded once

  • BB
    BIG BROTHERS BIG SISTERS OF ESSEX HUDSON AND UNION
    one grant, 2019 · $100k
  • GO
    GUITARS OVER GUNS ORGANIZATION INCgraduated
    one grant, 2023 · $40k · revenue +33%
  • PM
    PUBLIC MEDIA NJ INC
    one grant, 2017 · $35k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
2
Manhattan University

Manhattan university is an independent catholic instituion of higher learning that embraces qualified men and women of all faiths, cultures, and traditions. the mission of manhattan university is to provide a contemporary, person-centered…

Education
3
Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation

The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.

Science & Tech
4
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
5
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
6
Columbia College Chicago

The organization's mission is to educate students for creative occupations in diverse fields of arts and media.

Education
7
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
8
New York School of Interior Design

New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…

Education
9
Lehigh University

The university's goal in the coming decade is to advance learning through the integration of teaching, research and service to others. the core of this goal is to prepare graduates to engage with the world and lead lives of meaning. to do…

Education
10
Ucla Foundation

The ucla foundation is the giving, receiving, and investing arm of the ucla campus. the foundation enables private donors to help build, sustain and advance one of the world's finest academic and research institutions. private philanthropy…

Education
11
The George Washington University

The mission of the george washington university (gw) is to educate individuals in liberal arts, languages, sciences, learned professions, and other courses and subjects of study, and to conduct scholarly research and publish the findings…

Education
12
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
How this is measured
The grantee most central to the portfolio’s shape is Naacp Legal Defense & Educ Fund Inc; the most unlike its peers is New York City Ballet Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

24 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 24 of the 30 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
24/24
Grantees still filing
18/24
Grew since first funded

Where the money sits, by cause and then by grantee

WNET: $379,500 · Arts & CultureWNETTHE SECOND STAGE THEATRE INC: $238,500 · Arts & CultureTHE SECOND STAGE THEATRE INCTHE MUSEUM OF CONTEMPORARY ART LOS ANGELES: $40,000 · Arts & CultureTHE MUSEUM OF CONTEMPORARY ART LOS ANG…+5 more: $37,500 · Arts & Culture+5 moreINSTITUTE FOR ENTREPRENEURIAL LEADERSHIP INC: $400,000 · Community ImprovementINSTITUTE FOR ENTREPRE…FLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC: $155,000 · EducationFLORIDA INTER…CALIFORNIA STATE UNIVERSITY NORTHRIDGE FOUNDATION: $40,000 · EducationCALIFORNIA ST…Teach for America Inc: $20,000 · EducationTeach for Ame…Wellesley College: $13,000 · EducationWellesley Col…+2 more: $7,500 · EducationBIG BROTHERS BIG SISTERS OF ESSEX HUDSON AND UNION: $100,000 · OtherBIG BROTHERS BIG SI…NEW YORK UNIVERSITY - SILVER SCHOOL OF SOCIAL WORK: $70,000 · OtherNEW YORK UNIVERSITY…PUBLIC MEDIA NJ INC (NJTV): $35,000 · OtherPUBLIC MEDIA NJ INC…CORPORATE COUNSEL WOMEN OF COLOR: $55,000 · OtherCORPORATE COUNSEL W…GUITARS OVER GUNS ORGANIZATION INC: $40,000 · OtherGUITARS OVER GUNS O…MAGEE-WOMENS RESEARCH INSTITUTE AND FOUNDATION: $35,000 · OtherMAGEE-WOMENS RESEAR…+5 more: $24,000 · Other+5 moreNAACP LEGAL DEFENSE & EDUC FUND INC: $185,000 · Civil RightsNAACP LEGA…THE NASW FOUNDATION INC: $60,000 · Science & TechGRIFFITH OBSERVATORY FOUNDATION: $40,000 · Science & TechTHE SUNDARI FOUNDATION INC: $70,000 · Housing & Shelter
Arts & Culture$695,500Community Improvement$400,000Education$235,500Other$359,000Civil Rights$185,000Science & Tech$100,000Housing & Shelter$70,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetINSTITUTE FOR ENTREPRENEURIAL LEADERSHIP INC: $400,000 over 3y, 5.7% of budgetWNET: $379,500 over 5y, 0.1% of budgetTHE SECOND STAGE THEATRE INC: $238,500 over 3y, 2.1% of budgetNAACP LEGAL DEFENSE & EDUC FUND INC: $185,000 over 3y, 0.2% of budgetFLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC: $155,000 over 6y, 0.1% of budgetTHE SUNDARI FOUNDATION INC: $70,000 over 2y, 0.3% of budgetTHE NASW FOUNDATION INC: $60,000 over 3y, 2.1% of budgetCORPORATE COUNSEL WOMEN OF COLOR: $55,000 over 3y, 0.3% of budgetCALIFORNIA STATE UNIVERSITY NORTHRIDGE FOUNDATION: $40,000 over 2y, 0.1% of budgetGUITARS OVER GUNS ORGANIZATION INC: $40,000 over 1y, 1.1% of budgetGRIFFITH OBSERVATORY FOUNDATION: $40,000 over 1y, 2.0% of budgetTHE MUSEUM OF CONTEMPORARY ART LOS ANGELES: $40,000 over 2y, 0.1% of budgetMAGEE-WOMENS RESEARCH INSTITUTE AND FOUNDATION: $35,000 over 1y, 0.0% of budgetTeach for America Inc: $20,000 over 1y, 0.0% of budgetLOS ANGELES PHILHARMONIC ASSOCIATION: $20,000 over 2y, 0.0% of budgetWellesley College: $13,000 over 1y, 0.0% of budgetFEEDING SOUTH FLORIDA INC: $10,000 over 1y, 0.0% of budgetPUBLIC MEDIA GROUP OF SOUTHERN CALIFORNIA: $10,000 over 1y, 0.0% of budgetMONTCLAIR KIMBERLEY ACADEMY FOUNDATION: $5,000 over 1y, 0.0% of budgetTHE HISTORYMAKERS: $5,000 over 1y, 0.2% of budgetTHE PARTNERSHIP FOR AFTER SCHOOL EDUCATION INC: $2,500 over 1y, 0.2% of budgetNEW YORK CITY POLICE FOUNDATION INC: $2,000 over 1y, 0.0% of budgetTHE MONTCLAIR ART MUSEUM: $1,500 over 1y, 0.0% of budgetNEW YORK CITY BALLET INC: $1,000 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

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.

Jpmorgan Chase Founda…Vanguard Charitable E…National Philanthropi…The Bank of America C…American Online Givin…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Jpmorgan Chase FoundationNY15.7× affinity7 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jpmorgan Chase Foundation · Vanguard Charitable Endowment Program · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · 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.

How much its grantees rely on government

Each dot is one organization Tamara L Harris Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Tamara L Harris Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%1%3%6%10%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 5%
  • The Montclair Art Museum: 11% of income from government
  • Feeding South Florida Inc: 5% of income from government
  • The Sundari Foundation Inc: 5% of income from government
  • Wellesley College: 1% of income from government
  • Guitars Over Guns Organization Inc: 1% of income from government
no gov moneyreceives it· size = income
2get no government money at all
7report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Tamara L Harris Foundation Inc?

Find your warmest path to Tamara L Harris Foundation Inc 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.

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 30 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 Tamara L Harris’ filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home