· 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 you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
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 |
| VILLAGE OF GATES MILLS | $25,000 |
| KAREN WELLINGTON FDN | $25,000 |
| NATURAL HISTORY MUSEUM | $25,000 |
| WINOUS POINT MARSH CONSERVANCY | $25,000 |
| FRIENDS OF BOCA GRAND COMMUNITY CTR | $20,000 |
| HOPEWELL INN | $15,000 |
| HATHAWAY BROWN SCHOOL | $12,500 |
| Individual grant recipient | $10,000 |
| BOCA GRANDE CHARITIES | $10,000 |
| BOCA GRANDE WOMENS CLUB | $10,000 |
| UNIVERSITY SCHOOL | $10,000 |
| WAITE HILL VILLAGE FOUNDATION | $8,500 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your 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 your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +52% since the first grant, against +28% for the ones you 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
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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
- 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
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — 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.
For reference, the grantee most central to the portfolio’s shape is Wellington School and the most unlike its peers is K9 Heroes 4 Heroes. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 45 years old; the field is 20. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
22 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your 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 CASE WESTERN RESERVE UNIVERSITY ↗
- Who funds WELLINGTON SCHOOL ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — 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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization The Rig III Family Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.
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.