· Private foundation
Hieronymus 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.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k20 grants · $55k
- $10k–50k11 grants · $190k
- $50k–250k2 grants · $430k
| Recipient | Amount |
|---|---|
| UNIVERSITY OF FLORIDA | $230,000 |
| PEN AMERICA | $200,000 |
| FLORIDA BULLDOG | $30,000 |
| LOS ANGELES POLICE FOUNDATION | $25,000 |
| TAMPA BAY BUSINESSES FOR CULTURE AND THE ARTS | $25,000 |
| ENTERTAINMENT COMMUNITY FUND | $25,000 |
| AUTHORS GUILD FOUNDATION | $25,000 |
| 8 BALL EMERGENCY FUND FOR JOURNALISTS | $10,000 |
| Individual grant recipient | $10,000 |
| BOOK INDUSTRY CHARITABLE FOUNDATION | $10,000 |
| POE BALTIMORE INC | $10,000 |
| POETS & WRITERS | $10,000 |
| MARY LEE'S HOUSE | $10,000 |
| WAGS & WALKS | $5,000 |
| PRO BONO NET INC | $5,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY17–25, $136k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +40% since the first grant, against +26% for those funded once.
54 repeat relationships: 27 still active in FY2025, 27 since wound down; 6 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 91% of grant dollars renewed an existing relationship; $58k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
THE UNIVERSITY OF FLORIDA FOUNDATION INC5× · 2017–2022 · $766k · revenue +56%- PAPEN AMERICAN CENTER INC8× · 2017–2025 · $680k · revenue +110%
- BBBroward Bulldog Inc DBA Florida Bulldog8× · 2017–2025 · $440k · revenue +46% · 62% of their budget
Funded once
- CHCALIFORNIA HOMICIDE INVESTIGATORS ASSOCone grant, 2020 · $40k · revenue -87%
- GKGARY KOCH PRO AM FOUNDATIONone grant, 2019 · $23k
- CPCOMMUNITY PARTNERSgraduatedone grant, 2017 · $15k · revenue +266%
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.
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.
The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
Pro publica is an independent, non-profit, pulitzer prize-winning newsroom that produces investigative journalism in the public interest. our work focuses exclusively on truly important stories. [see continuation on schedule o] we produce…
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.
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…
CITY REPORT, INC. serves the people of New York through independent journalism that answers their information needs and holds the powerful to account.
To drive transformational adaptation to protect communities across the country from higher seas, stronger storms, and more frequent flooding.
The mission of the organization is to foster the development of creative individuals as writers and artists and to promote public appreciation of excellence in the literary and graphic arts by publishing a magazine containing fiction,…
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.
Spcala is dedicated to the prevention of cruelty to animals through education, law enforcement, intervention and advocacy.
The institute's mission, as set out in its certificate of incorporation, is to promote the clarification and simplification of the law and its better adaptation to social needs, to secure the better administration of justice, and to…
The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…
How this is measured
67 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. 67 of the 93 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.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
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 THE UNIVERSITY OF FLORIDA FOUNDATION INC ↗
- Who funds PEN AMERICAN CENTER INC ↗
- Who funds Broward Bulldog Inc DBA Florida Bulldog ↗
- Who funds FAIRWARNING INC ↗
- Who funds TAMPA BAY BUSINESS COALITION FOR THE ARTS INC ↗
- Who funds THE AUTHORS GUILD FOUNDATION INC ↗
- Who funds BOOK INDUSTRY CHARITABLE FOUNDATION ↗
- Who funds LOS ANGELES POLICE FOUNDATION ↗
- Who funds MARY LEES HOUSE INC ↗
- Who funds Literacy Partners Inc ↗
- Who funds POETS AND WRITERS INC ↗
- Who funds CALIFORNIA HOMICIDE INVESTIGATORS ASSOC ↗
- Who funds CHAPMAN UNIVERSITY ↗
- Who funds LOS ANGELES CITY COLLEGE FOUNDATION ↗
- Who funds Wags and Walks ↗
- Who funds POE BALTIMORE INC co Hurst R Hessey ↗
- Who funds THE ACTORS' FUND OF AMERICA ↗
- Who funds THE COMMUNITY FOUNDATION OF SARASOTA CO INC ↗
- Who funds LOS ANGELES MISSION INC ↗
- Who funds COMMUNITY FOUNDATION OF TAMPA BAY INC ↗
- Who funds SOUTHWEST FLORIDA COMMUNITY FOUNDATION INC ↗
- Who funds FEEDING AMERICA TAMPA BAY INC ↗
- Who funds LOS ANGELES REGIONAL FOOD BANK ↗
- Who funds MYSTERY WRITERS OF AMERICA INC ↗
- Who funds THE MIDNIGHT MISSION ↗
- Who funds COMMUNITY PARTNERS ↗
- Who funds International Rescue Committee INC ↗
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.
Open a dossier: Vinik Family Foundation · Pinellas Community Foundation · Suncoast Credit Union Foundation · Community Foundation of Tampa Bay Inc · Kiwanis Foundation of Tampa Inc · New York Yankees Tampa Foundation Inc · Kimmins Terrier Foundation Inc · Chris T Sullivan Foundation Inc · The Spurlino Foundation · Lightning Foundation · Impactassetsinc · Debartolo Family Foundation Inc
How this is measured
How much its grantees rely on government
Each dot is one organization Hieronymus Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Hieronymus Foundation Inc. Bigger dots raise more.
- Southwest Florida Community Foundation Inc: 69% of income from government
- The Coral Restoration Foundation Inc: 16% of income from government
- Reach Out and Read Inc: 9% of income from government
- Tampa Metropolitan Area Young Men's Christian Association Inc: 4% of income from government
- Mote Marine Laboratory Inc: 4% of income from government
- Feeding America Tampa Bay Inc: 2% of income from government
- First Amendment Foundation: 1% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Hieronymus Foundation Inc?
Find your warmest path to Hieronymus 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.
Play a game based on Hieronymus’ filings →