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Thomas a & Diann G Mann Foundation at a glance

· Private foundation

Thomas a & Diann G Mann Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$1k
Granted FY2025still arriving
1
Grants FY2025still arriving
1
States reached
$1k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0197% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Environment$250kArts & Culture$131kHuman Services$97kEducation$95kHealth$65kInternational$40kPhilanthropy$39kReligion$31kOther$0
02FY2025 · 1 grant

Where the money goes

Grants by size, and the largest recipients.

$1,000
Median grant
1
States reached
$13k
Total assets
Largest grants
RecipientAmount
FRENCHMAN'S CREEK CHARITITES$1,000
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 (FY19–25) land where the poverty rate runs at 13%, against an area that typically sits at 13%. 42% of its dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 13%CORNELL UNIVERSITY JEWISH STUDIES: $10k → 16%AMERICAN FRIENDS OF THE HEBREW UNIV: $20k → 17%MALTZ JUPITER THEATER: $7k → 11%AMERICAN FRIENDS OF THE HEBREW UNIV: $10k → 13%MIAMI CITY BALLET: $3k → 15%OHIO STATE UNIVERSITY MELTON CTR JE: $35k → 15%PIANO CLEVELAND: $30k → 17%CORNELL UNIVERSITY JEWISH STUDIES: $5k → 16%JEWISH FEDERATION OF PALM BEACH COU: $30k → 11%AMERICAN FRIENDS OF THE HEBREW UNIV: $10k → 13%MIAMI CITY BALLET: $2k → 15%OHIO STATE UNIVERSITY MELTON CTR JE: $35k → 15%THE TEMPLE TIFERETH ISRAEL: $5k → 17%CORNELL UNIVERSITY JEWISH STUDIES: $5k → 16%MALTZ JUPITER THEATER: $6k → 11%MIAMI CITY BALLET: $2k → 15%THE OHIO STATE UNIVERSITY: $20k → 15%HEBREWJEWISH GENEOLOGICAL SOCIETY: $5k → 17%PLANNED PARENTHOOD OF SE AND N FLOR: $2k → 11%MIAMI CITY BALLET: $2k → 15%MALTZ JUPITER THEATER: $5k → 11%MIAMI CITY BALLET: $2k → 15%PLANNED PARENTHOOD OF SE AND N FLOR: $2k → 11%UNIVERSITY HOSPITALS SEIDMAN CANCER: $3k → 17%MALTZ JUPITER THEATRE: $5k → 11%PLANNED PARENTHOOD OF SE AND N FLOR: $2k → 11%MALTZ JUPITER THEATER: $3k → 11%FRENCHMANS CREEK CHARITIES FDN INC: $2k → 11%KRAVIS CENTER FOR THE PERFORMING AR: $10k → 11%KRAVIS CENTER FOR THE PERFORMING AR: $10k → 11%KRAVIS CENTER FOR THE PERFORMING AR: $10k → 11%PALM BEACH DRAMA WORKS: $5k → 11%PALM BEACH DRAMA WORKS: $5k → 11%JUPITER MEDICAL CENTER FOUNDATION: $10k → 11%PALM BEACH DRAMA WORKS: $5k → 11%JUPITER MEDICAL CENTER FOUNDATION: $10k → 11%PALM BEACH DRAMA WORKS: $5k → 11%JUPITER MEDICAL CENTER FOUNDATION: $10k → 11%PALM BEACH DRAMA WORKS: $5k → 11%JUPITER MEDICAL CENTER FOUNDATION: $10k → 11%NORTON MUSEUM OF ART: $3k → 11%JUPITER MEDICAL CENTER FOUNDATION: $10k → 11%SCRIPPS RESEARCH INSTITUTE: $3k → 11%SCRIPPS RESEARCH INSTITUTE: $2k → 11%ALPERT JEWISH FAMILY CHILDRENS SERV: $36k → 11%ALPERT JEWISH FAMILY CHILDRENS SERV: $31k → 11%ALPERT JEWISH FAMILY CHILDRENS SERV: $30k → 11%INSIGHT FOR EDUCATION: $3k → 11%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

NY
MA
OH
PA
CO
VA
MD
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.

91%of every dollar goes to organizations it has funded before.
$666k · 19 repeat orgs$66k to everyone else

Grantees it renews have grown median revenue +56% since the first grant, against +10% for those funded once.

19 repeat relationships: 1 still active in FY2025, 18 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

19
18

Total granted

$666k
$66k

Median revenue growth · since first grant

+56%
+10%

Still filing today

53%
28%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’19’20’21’22’23’24’25
Arts & CultureHealthPhilanthropyEducationInternationalCommunity ImprovementOther
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

  • JM
    Jupiter Medical Center Foundation Inc
    5× · 2019–2023 · $50k · revenue +109%
  • AF
    AMERICAN FRIENDS OF HEBREW UNIVERSITY INC
    3× · 2019–2021 · $40k · revenue +20%
  • PB
    PALM BEACH DRAMAWORKS INC
    5× · 2019–2023 · $25k · revenue +92%

Funded once

  • PI
    PIANO INTERNATIONAL ASSOC OF NORTHERN OH
    one grant, 2024 · $30k · revenue 0%
  • TO
    THE OHIO STATE UNIVERSITY
    one grant, 2019 · $20k
  • HG
    HEBREWJEWISH GENEOLOGICAL SOCIETY
    one grant, 2019 · $5k
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
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
2
University of Miami

See Form 990, Part I, Line 1, Description of Organization Mission.

Education
3
The Jewish Museum

The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.

Arts & Culture
4
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
5
Bar Ilan University in Israel Inc

Biu produces students who excel in the sciences, humanities, law, engineering, business & the arts.

—
6
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
7
The United States Holocaust Memorial Museum

Chartered by a unanimous act of congress, the museum is america's national institution for the documentation, study, interpretation, and education of holocaust history and serves as our country's memorial to the victims of the holocaust.…

Arts & Culture
8
Weitzman National Museum of American Jewish History

The weitzman national museum of american jewish history, on independence mall in philadelphia, presents educational programs and experiences that preserve, explore, and celebrate the history of jews in america. its purpose is to connect…

Arts & Culture
9
Fairleigh Dickinson University

Fairleigh dickinson university is a center of academic excellence dedicated to the preparation of world citizens through global education. the university strives to provide students with the multi-disciplinary, intercultural, and ethical…

Education
10
Philadelphia Jewish Film and Media

Philadelphia jewish film and medias mission is to educate and engage diverse philadelphia communities, jewish and non-jewish alike, by presenting world-class film premieres, repertory cinema, and associated programs that are inspired by…

Human Services
11
New World Symphony Inc

Prepares gifted graduates of prestigious music programs for successful careers in orchestras and ensembles.

Education
12
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
How this is measured
The grantee most central to the portfolio’s shape is Jewish Federation of Palm Beach County Inc; the most unlike its peers is American Diabetes Association. 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

17 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. 17 of the 39 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)
3
Early backer (in before they grew)
17/17
Grantees still filing
13/17
Grew since first funded

Where the money sits, by cause and then by grantee

UNIVERSITY OF COLORADO BIOFRONTIERS: $250,000 · OtherUNIVERSITY OF COLORADO BIOFRONTIERSALPERT JEWISH FAMILY CHILDRENS SERV: $97,000 · OtherALPERT JEWISH FAMILY CHILDRENS SERVOHIO STATE UNIVERSITY MELTON CTR JE: $70,000 · OtherOHIO STATE UNIVERSITY MELTON CTR JEKRAVIS CENTER FOR THE PERFORMING AR: $30,100 · OtherKRAVIS CENTER FOR THE PERFORMING ARPIANO INTERNATIONAL ASSOC OF NORTHERN OH: $30,000 · OtherPIANO INTERNATIONAL ASSOC OF NORTHERN OHTHE OHIO STATE UNIVERSITY: $20,000 · OtherCORNELL UNIVERSITY JEWISH STUDIES: $20,000 · Other+19 more: $32,448 · Other+19 moreJupiter Medical Center Foundation Inc: $50,000 · PhilanthropyJupiter Medic…JEWISH FEDERATION OF PALM BEACH COUNTY INC: $30,000 · PhilanthropyJEWISH FEDERA…FRENCHMANS CREEK CHARITIES FOUNDATION INC: $8,600 · PhilanthropyFRENCHMANS CR…MALTZ JUPITER THEATRE INC: $25,700 · Arts & CultureMALTZ JUPI…PALM BEACH DRAMAWORKS INC: $25,250 · Arts & CulturePALM BEACH…MIAMI CITY BALLET INC: $11,000 · Arts & CultureMIAMI CITY…NORTON MUSEUM OF ART INC: $6,250 · Arts & CultureNORTON MUS…INSIGHT THROUGH EDUCATION INC: $2,500 · Arts & CultureAMERICAN FRIENDS OF HEBREW UNIVERSITY INC: $40,000 · InternationalNATIONAL COUNCIL OF JEWISH WOMEN PALM BEACH SECTION: $7,200 · Community ImprovementTHE SCRIPPS RESEARCH INSTITUTE: $4,700 · Health+1 more: $100 · HealthFEEDING SOUTH FLORIDA INC: $1,000 · Food & Nutrition
Other$549,548Philanthropy$88,600Arts & Culture$70,700International$40,000Community Improvement$7,200Health$4,800Food & Nutrition$1,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetJupiter Medical Center Foundation Inc: $50,000 over 5y, 0.0% of budgetAMERICAN FRIENDS OF HEBREW UNIVERSITY INC: $40,000 over 3y, 0.0% of budgetPIANO INTERNATIONAL ASSOC OF NORTHERN OH: $30,000 over 1y, 1.3% of budgetJEWISH FEDERATION OF PALM BEACH COUNTY INC: $30,000 over 1y, 0.1% of budgetMALTZ JUPITER THEATRE INC: $25,700 over 5y, 0.1% of budgetPALM BEACH DRAMAWORKS INC: $25,250 over 5y, 0.2% of budgetMIAMI CITY BALLET INC: $11,000 over 5y, 0.0% of budgetFRENCHMANS CREEK CHARITIES FOUNDATION INC: $8,600 over 6y, 0.6% of budgetNATIONAL COUNCIL OF JEWISH WOMEN PALM BEACH SECTION: $7,200 over 4y, 2.0% of budgetNORTON MUSEUM OF ART INC: $6,250 over 4y, 0.0% of budgetTHE SCRIPPS RESEARCH INSTITUTE: $4,700 over 2y, 0.0% of budgetINSIGHT THROUGH EDUCATION INC: $2,500 over 1y, 0.7% of budgetFEEDING SOUTH FLORIDA INC: $1,000 over 1y, 0.0% of budgetTHE LORD'S PLACE INC: $900 over 3y, 0.0% of budgetAmerican Diabetes Association: $100 over 1y, 0.0% of budgetTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $100 over 1y, 0.0% of budgetNEW ENGLAND CONSERVATORY OF MUSIC: $100 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.

  • Who funds Jupiter Medical Center Foundation Inc ↗
  • Who funds AMERICAN FRIENDS OF HEBREW UNIVERSITY INC ↗
  • Who funds PIANO INTERNATIONAL ASSOC OF NORTHERN OH ↗
  • Who funds JEWISH FEDERATION OF PALM BEACH COUNTY INC ↗
  • Who funds MALTZ JUPITER THEATRE INC ↗
  • Who funds PALM BEACH DRAMAWORKS INC ↗
  • Who funds MIAMI CITY BALLET INC ↗
  • Who funds FRENCHMANS CREEK CHARITIES FOUNDATION INC ↗
  • Who funds NATIONAL COUNCIL OF JEWISH WOMEN PALM BEACH SECTION ↗
  • Who funds NORTON MUSEUM OF ART INC ↗
  • Who funds THE SCRIPPS RESEARCH INSTITUTE ↗
  • Who funds INSIGHT THROUGH EDUCATION INC ↗
  • Who funds FEEDING SOUTH FLORIDA INC ↗
  • Who funds THE LORD'S PLACE INC ↗
  • Who funds American Diabetes Association ↗
  • Who funds TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
  • Who funds NEW ENGLAND CONSERVATORY OF MUSIC ↗

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.

National Philanthropi…Vanguard Charitable E…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
National Philanthropic TrustPA9.2× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

Open a dossier: National Philanthropic Trust · Vanguard Charitable Endowment Program · 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 Thomas a & Diann G Mann Foundation funds: left to right is the share of its income from government, bottom to top the share from Thomas a & Diann G Mann Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 50%0%1%3%5%funder's share of their income ↑0%15%30%45%60%share of the org’s income from government →median 5%
  • The Lord's Place Inc: 12% of income from government
  • Feeding South Florida Inc: 5% of income from government
  • New England Conservatory of Music: 1% of income from government
no gov moneyreceives it· size = income
5get no government money at all
5report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–60%
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.

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 39 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 Thomas a & Diann G Mann’s 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