· Private foundation
Calvin & Flavia Oak 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, FY2019 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k10 grants · $35k
- $10k–50k1 grant · $10k
| Recipient | Amount |
|---|---|
| VOUS CHURCH | $10,000 |
| SAMARITAN'S PURSE | $6,000 |
| Individual grant recipient | $5,000 |
| ST ROSA OF LIMA SCHOOL | $5,000 |
| ST PATRICK'S CHURCH | $3,000 |
| MIAMI RESCUE MISSION | $3,000 |
| Individual grant recipient | $3,000 |
| BOYS & GIRLS CLUB OF MIAMI DADE | $3,000 |
| Individual grant recipient | $3,000 |
| MIAMI LIGHTHOUSE FOR THE BLIND | $3,000 |
| ABCD | $1,000 |
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 (FY19–25, $18k) land where the poverty rate runs at 15%, against an area that typically sits at 13%. 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.
14 repeat relationships: 9 still active in FY2025, 5 since wound down; 2 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, 76% of grant dollars renewed an existing relationship; $11k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- BGBOYS & GIRLS CLUBS OF MIAMI INC7× · 2019–2025 · $21k · revenue +250%
- TWTHE WOW CENTER INC2× · 2021–2022 · $8k · revenue +229%
- FLFLORIDA LIONS EYE BANK INC2× · 2019–2020 · $6k · revenue +5%
Funded once
- VFVOLUNTEER FLORIDA FOUNDATION INCone grant, 2023 · $15k · revenue -61%
- MKMORNINGSIDE K-8 ACADEMYone grant, 2023 · $7k
- TCTHE CUSHMAN SCHOOL INCgraduatedone grant, 2019 · $5k · revenue +90%
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.
In 2024, biscayne bay waterkeeper (d/b/a miami waterkeeper) built on our reputation by navigating challenges, seizing opportunities, and continuing our unwavering commitment to safeguarding our precious waterways and finding local…
The advancement of marine and environmental sciences through scientific research, education and public outreach, leading new discoveries, revitalization and sustainability of our oceans and greater public understanding of our marine…
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…
Marine research
See Form 990, Part I, Line 1, Description of Organization Mission.
The mission of the foundation is to restore and protect america's everglades through its three programmatic pillars: science, advocacy and education. (continued on schedule o)
Clean miami beach is dedicated to keeping our community and natural habitats free of garbage and harmful pollutants with a focus on single-use plastics. the goal is to teach residents, and educate the youth of today, how everyone can…
Promote and elevate the region as a global marine research hub with technology and innovation commercialization and monetizing from florida's oceanographic research universities and institutions.
Organization mission: florida's children first is a non-profit, nonpartisan, independent advocacy organization committed to protecting and advancing the rights of children and youth impacted by the child welfare, juvenile justice, and…
Working in partnership with state business leaders to secure florida's future.
The organization's mission is to bring academic, work, life and economic opportunities to students whose potential to contribute to a robust florida is largely untapped.
How this is measured
10 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. 10 of the 24 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 BOYS & GIRLS CLUBS OF MIAMI INC ↗
- Who funds Miami Rescue Mission Inc ↗
- Who funds MIAMI LIGHTHOUSE FOR THE BLIND AND VISUALLY IMPAIRED INC ↗
- Who funds VOLUNTEER FLORIDA FOUNDATION INC ↗
- Who funds THE WOW CENTER INC ↗
- Who funds FLORIDA LIONS EYE BANK INC ↗
- Who funds SAMARITAN'S PURSE ↗
- Who funds THE CUSHMAN SCHOOL INC ↗
- Who funds WILD OCEANS INC ↗
- Who funds FRIENDS OF THE EVERGLADES 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: The Miami Foundation Inc · Mightycause Charitable Foundation · The Bank of America Charitable Foundation Inc · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Calvin & Flavia Oak Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Calvin & Flavia Oak Foundation Inc. Bigger dots raise more.
- Florida Lions Eye Bank Inc: 2% of income from government
- Volunteer Florida Foundation Inc: 2% of income from government
- Miami Lighthouse for the Blind and Visually Impaired Inc: 0% of income from government
- The Cushman School Inc: 0% of income from government
How this is measured
Play a game based on Calvin & Flavia Oak’s filings →