· Private foundation
The Fortunatus 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 FY2024–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k17 grants · $43k
- $10k–50k7 grants · $160k
| Recipient | Amount |
|---|---|
| BOYS & GIRLS CLUB OF MARTIN COUNTY | $40,000 |
| MARION ART CENTER INC | $37,500 |
| OLD DARTMOUTH HISTORICAL SOCIETY | $25,210 |
| AMERICANS FOR CHILDREN OF THE MIDDLE EAST | $20,000 |
| ALEXANDER TWILIGHT ACADEMY INC | $15,000 |
| BUZZARDS BAY COALITION | $12,500 |
| THE EVERGLADES FOUNDATION INC | $10,000 |
| HOBE SOUND COMMUNITY CHEST INC | $5,000 |
| WORLD CENTRAL KITCHEN INC | $5,000 |
| INTERNATIONAL RESCUE COMMITTEE INC | $5,000 |
| Individual grant recipient | $5,000 |
| SIPPICAN LANDS TRUST INC | $5,000 |
| RARE INC | $5,000 |
| MASSACHUSETTS GENERAL HOSPITAL PSYCHIATRY LEADERSHIP COUNCIL | $5,000 |
| SOUTHCOAST HEALTH SYSTEM INC | $2,000 |
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.
Dollar for dollar, your grants (FY24–25) land where the poverty rate runs at 11%, against an area that typically sits at 11%. 57% of your 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.
Which US states your grants reach
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.
10 repeat relationships — 10 still active in FY2025, 0 since wound down; 14 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, 77% of grant dollars renewed an existing relationship; $46k 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
- BGBOYS & GIRLS CLUB OF MARTIN COUNTY2× · 2024–2025 · $55k · revenue +80%
- AFAMERICANS FOR CHILDREN OF THE MIDDLE EAST2× · 2024–2025 · $40k · revenue +18%
THE EVERGLADES FOUNDATION INC2× · 2024–2025 · $13k · revenue +44%
Funded once
- MGMASS GENERAL HOSPITAL PSYCHIATRY LEADERSHIP COUNCILone grant, 2024 · $25k
THE MARION INSTITUTE INCone grant, 2024 · $11k · revenue 0%- BMBIOLOGICAL MEDICINE INSTITUTEone grant, 2024 · $5k
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.
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…
Organization's mission statement true to the ambitious vision of its founder and her spirit of creative risk-taking, the mission of the isabella stewart gardner museum is: - to bring to life and preserve the rich historic collection; - to…
The program mission of the quebec-labrador foundation u.s. is defined by a regional component (new england and eastern canada), and an international component, which ties our regional model to a global conservation network. qlf's program…
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…
The Marine Biological Laboratory (MBL) is a world-renowned center for biological discovery and training that is notably affiliated with more than 60 Nobel Prize winners. Research is conducted by full-time faculty as well as hundreds of the…
The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
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…
To preserve the unique character and natural resources of harvard.
Gloucester marine genomics institute's mission is to address critical challenges in ocean health, human health, and the environment through innovative marine biotechnology research and transformative science education. by combining…
Ci works to spotlight and secure the critical benefits that nature provides to humanity.
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
The baykeeper's mission is to protect, preserve, and restore the ecological integrity and productivity of the hudson-raritan estuary - one of the most urban estuaries on the planet. since 1989, the organization has served as a citizen…
For reference, the grantee most central to the portfolio’s shape is Buzzards Bay Coalition and the most unlike its peers is International Rescue Committee Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 32 years old; the field is 17. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 5% of your grantees by number, and just 2% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% 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.
26 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. 26 of the 30 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 BOYS & GIRLS CLUB OF MARTIN COUNTY ↗
- Who funds Old Dartmouth Historical Society ↗
- Who funds AMERICANS FOR CHILDREN OF THE MIDDLE EAST ↗
- Who funds Marion Art Center Inc ↗
- Who funds BUZZARDS BAY COALITION ↗
- Who funds ALEXANDER TWILIGHT ACADEMY INC ↗
- Who funds THE EVERGLADES FOUNDATION INC ↗
- Who funds THE MARION INSTITUTE INC ↗
- Who funds SIPPICAN LANDS TRUST INC ↗
- Who funds HOBE SOUND COMMUNITY CHEST INC ↗
- Who funds BIOLOGICAL MEDICINE INSTITUTE ↗
- Who funds VETERINARY INITIATIVE FOR ENDANGERED WILDLIFE INC ↗
- Who funds RARE ↗
- Who funds International Rescue Committee INC ↗
- Who funds OUR SISTERS SCHOOL ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds The Society of the Four Arts Inc ↗
- Who funds SOUTHCOAST HEALTH SYSTEM INC ↗
- Who funds CENTRAL PARK CONSERVANCY INC ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds JUPITER ISLAND ARTS COUNCIL INC ↗
- Who funds NEW BEDFORD SYMPHONY ORCHESTRA ASSOCIATION INC ↗
- Who funds THE GUARDIANS OF MARTIN COUNTY INC ↗
- Who funds JUPITER ISLAND GARDEN CLUBINC ↗
- Who funds THE HERMITAGE MUSEUM AND GARDENS ↗
- Who funds JUPITER ISLAND HISTORICAL SOCIETY INC ↗
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 Croll Foundation · Legatus Foundation · Laura M and Peter T Grauer Foundation · Rubenstein Family Trust · Donald Grant & Ann Martin Calder Foundat · St Clair Charitable Trust · Hugh and Patricia Okane Foundation Co Hugh Okane · The Patton Charitable Foundation · CMB Foundation · The Ludes Family Foundation · Willow Creek Charitable Foundation U/A/D 01/11/2002 · Colket Family 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 Fortunatus 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.
- Buzzards Bay Coalition — 37% of income from government
- Old Dartmouth Historical Society — 2% of income from government
- Boys & Girls Club of Martin County — 2% of income from government
- The Marion Institute Inc — 1% of income from government
- Marion Art Center Inc — 1% of income from government
- Our Sisters School — 0% of income from government
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 Fortunatus Foundation?
Find your warmest path to The Fortunatus 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.