· Private foundation
The Rig III Family Foundation
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 $10k14 grants · $54k
- $10k–50k14 grants · $284k
| Recipient | Amount |
|---|---|
| BOCA GRANDE HEALTH CLINIC | $35,000 |
| FIELDSTONE FARM THERAPEUTIC RIDING CTR | $31,000 |
| HERSHEY MONTESSORI SCHOOL | $30,000 |
| NATURAL HISTORY MUSEUM | $25,000 |
| KAREN WELLINGTON FDN | $25,000 |
| WINOUS POINT MARSH CONSERVANCY | $25,000 |
| VILLAGE OF GATES MILLS | $25,000 |
| FRIENDS OF BOCA GRAND COMMUNITY CTR | $20,000 |
| HOPEWELL INN | $15,000 |
| HATHAWAY BROWN SCHOOL | $12,500 |
| BOCA GRANDE CHARITIES | $10,000 |
| BOCA GRANDE WOMENS CLUB | $10,000 |
| Individual grant recipient | $10,000 |
| UNIVERSITY SCHOOL | $10,000 |
| WAITE HILL VILLAGE FOUNDATION | $8,500 |
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 (FY23–25, $30k) land where the poverty rate runs at 11%, 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.
Grantees it renews have grown median revenue +52% since the first grant, against +28% for those funded once.
38 repeat relationships: 26 still active in FY2025, 12 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, 96% of grant dollars renewed an existing relationship; $14k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- WPWINOUS POINT MARSH CONSERVANCY9× · 2017–2025 · $253k · revenue +52%
- HBHATHAWAY BROWN SCHOOL9× · 2017–2025 · $163k · revenue +48%
- HSHAWKEN SCHOOL9× · 2017–2025 · $137k · revenue +76%
Funded once
- BGBOCA GRANDE DISASTER FDone grant, 2024 · $50k
- OSOHIO STATE UNIV WEXNER MEDICAL CTRone grant, 2021 · $20k
- MCMAYFIELD CITY SCHOOLSone grant, 2022 · $19k
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.
Saint andrew's school is an independent school founded in the episcopal tradition. our mission is to build a community of learners, provide excellence in education, and nurture each student in mind, body, and spirit.
Hillbrook provides an extraordinary educational experience that fosters a love of learning in our students and helps them to develop the knowledge, skills and confidence to achieve their highest individual potential in school and in life.…
We inspire in our students a love of knowledge and the ability to use that knowledge creatively, compassionately and courageously throughout their lives.sage hill school's commitment to academic excellence and our outstanding college…
To inform and enrich the intellectual lives of 20,000 alumni of harvard university in the washington, dc area and to assist harvard university with respect to applicants and undergraduates from the dc area.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Harvard-westlake strives to be a diverse and inclusive community united by the joyful pursuit of educational excellence, living and learning with integrity, and purpose beyond ourselves.
Williams College strives to achieve educational excellence by fostering a community of learning in collaboration with students, faculty, staff, devoted alumni and parents.
Believing in the limitless potential of girls, hockaday school develops resilient, confident women who are educated and inspired to lead lives of purpose and impact.
The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…
Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…
Hampshire country school is a place of possibilities for high-ability, neurodiverse students enrolling in later elementary or middle school who have not found success in traditional educational environments. hampshire country school offers…
Hobart and william smith prepares students to lead lives of consequence.
How this is measured
22 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. 22 of the 51 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 WINOUS POINT MARSH CONSERVANCY ↗
- Who funds HATHAWAY BROWN SCHOOL ↗
- Who funds HAWKEN SCHOOL ↗
- Who funds FIELDSTONE FARM THERAPEUTIC RIDING CENTER ↗
- Who funds BOCA GRANDE HEALTH CLINIC INC ↗
- Who funds HOPEWELL ↗
- Who funds BOCA GRANDE WOMAN'S CLUB INC ↗
- Who funds The Karen Wellington Memorial Foundation ↗
- Who funds HERSHEY MONTESSORI SCHOOL ↗
- Who funds UNIVERSITY SCHOOL ↗
- Who funds FRIENDS OF BOCA GRANDE COMMUNITY CENTER INC ↗
- Who funds FLYING HORSE FARMS ↗
- Who funds JOHANN FUST LIBRARY FOUNDATION INC ↗
- Who funds TRAVIS MILLS FOUNDATION ↗
- Who funds BOCA GRANDE HISTORICAL SOCIETY INC ↗
- Who funds WELLINGTON SCHOOL ↗
- Who funds CASE WESTERN RESERVE UNIVERSITY ↗
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 Cleveland Foundation · The Betty T and David M Schneider Foundation · Akron Community Foundation · Carbonari Family Foundation · The Cruz Family Foundation Inc · Gulf Coast Community Foundation Inc · Alexander and Sarah Cutler Family Foundation · The Humke Foundation Inc · Sullivan Family Foundation Foundation · Anderson Family Foundation · Fletcher Foundation Inc · The Margetts Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization The Rig III Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Rig III Family Foundation. Bigger dots raise more.
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to The Rig III Family Foundation?
Find your warmest path to The Rig III Family Foundation 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.
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