· Private foundation
Denise & Michael Riebe 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, FY2020 to 2025.
Where the money goes
Grants by size, and the largest recipients.
| Recipient | Amount |
|---|---|
| Centre for Women | $4,000 |
| Rails to Trails | $4,000 |
| Civil Air Patrol | $4,000 |
| Individual grant recipient | $4,000 |
| World Central Kitchen | $4,000 |
| Vanderbilt Health | $2,250 |
| Cheekwood Society | $1,500 |
| Friends of Warner Park | $525 |
| Friends of Radnor Lake | $500 |
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 (FY20–25, $23k) land where the poverty rate runs at 13%, 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
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
22 repeat relationships: 8 still active in FY2025, 14 since wound down; 1 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, 84% of grant dollars renewed an existing relationship; $4k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- TCTHE CENTRE FOR WOMEN INC6× · 2020–2025 · $23k · revenue +12%
University of South Florida Foundation Inc3× · 2020–2022 · $17k · revenue +58%- BWBig Waters Land Trust Inc4× · 2020–2024 · $12k · revenue +16%
Funded once
- CFConservation Fndtn of Gulf Coastone grant, 2021 · $5k
- IHIVY HOUSE INCone grant, 2024 · $4k
- TBTampa Bay Reforestation and Environone grant, 2022 · $3k
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 tampa bay partnership is a privately funded, ceo-driven regional advocacy organization, committed to creating a unified, competitive and prosperous tampa bay.
We harness the power of plants for humankind and share the joy and beauty of tropical gardening with everyone. fairchild tropical botanic garden is a museum of tropical plants within a world famous, 83-acre designed landscape. it was…
To promote visitation to florida by strengthening florida's share of the global travel market with the goal of maximizing the economic impact of travel and tourism to florida.
The ringling is a place of art, architecture, and circus in an environment that inspires, educates, entertains, and honors the legacy of john & mable ringling.
The Florida Aquarium's mission focuses on our Shared Purpose of a commitment to save marine wildlife, with a Vision to be Florida's leading conservation-based Aquarium. It accomplishes this mission through hosting over 1 million visitors…
To promote a culture of environmental stewardship through volunteer and educational opportunities.
The florida state university foundation enhances the academic mission and vision of florida state university through its organized fundraising activities and funds management. the fsu foundation accomplishes its mission by fostering…
To promote, encourage and enhance research activities at the university of south florida.
As an arts leader in florida, the ashley gibson barnett museum of art at florida southern college inc (the agb) educates and inspires the community through creative and diverse exhibitions and the acquisition and care of a permanent…
The american federation of arts initiates and organizes a national and international program of art exhibitions, publications, and educational activities to benefit the museum community and enrich the public's experience and understanding…
To enrich life by perpetuating tropical plants, ecosystems and cultural heritage through discovery, scientific research, conservation, and education.
The conservancy is a land conservation trust organized to help the community and landowners in the tampa bay region preserve natural and agricultural lands as well as the area's scenic heritage.
How this is measured
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 35 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 CENTRE FOR WOMEN INC ↗
- Who funds University of South Florida Foundation Inc ↗
- Who funds Big Waters Land Trust Inc ↗
- Who funds TAMPA MUSEUM OF ART INC ↗
- Who funds FEEDING AMERICA TAMPA BAY INC ↗
- Who funds RAILS TO TRAILS CONSERVANCY ↗
- Who funds KALAMAZOO COLLEGE ↗
- Who funds ACTION ON SMOKING AND HEALTH ↗
- Who funds MUSEUM OF FINE ARTS OF ST PETERSBURG FLORIDA INC ↗
- Who funds FRIENDS OF TAMPA RECREATION INC ↗
- Who funds ALL FAITHS FOOD BANK INC ↗
- Who funds FRIST ART MUSEUM ↗
- Who funds SALVADOR DALI MUSEUM INC ↗
- Who funds TEAM RUBICON INC ↗
- Who funds FRIENDS OF RADNOR LAKE ↗
- Who funds NATIONAL ARBOR DAY FOUNDATION ↗
- Who funds GREENWAYS FOR NASHVILLE 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: Jpmorgan Chase Foundation · Frank E Duckwall Foundation · Debartolo Family Foundation Inc · Publix Super Markets Charities Inc · Raymond James Charitable Endowment Fund · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Charities Aid Foundation America · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc
How this is measured
How much its grantees rely on government
Each dot is one organization Denise & Michael Riebe Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Denise & Michael Riebe Foundation Inc. Bigger dots raise more.
- The Centre for Women Inc: 6% of income from government
- Feeding America Tampa Bay Inc: 2% of income from government
- All Faiths Food Bank Inc: 1% of income from government
- Tampa Museum of Art Inc: 0% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Denise & Michael Riebe Foundation Inc?
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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.
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