· Private foundation
Bonnell Cove Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
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.
| Recipient | Amount |
|---|---|
| SAVANNAH SCIENCE MUSEUM | $6,000 |
| COBSCOOK INSTITUTE | $5,607 |
| HURRICANE ISLAND FOUNDATION | $5,550 |
| WASHINGTON YACHT CLUB | $5,000 |
| OIKONOS ECOSYSTERM KNOWLEDGE | $5,000 |
| BELLINGHAM BAY COMMUNITY BOATING CT | $5,000 |
| CAPE COD MARITIME MUSEUM | $5,000 |
| SAWHORSE REVOLUTION | $5,000 |
| BILLION OYSTER PROJECT INC | $5,000 |
| CHICAGO YACHT CLUB FOUNDATION | $4,875 |
| COMMUNITY BOATING CENTER INC | $4,764 |
| BIGELOW LAB FOR OCEAN SCIENCE | $4,695 |
| MARITIME GLOUCESTER | $4,500 |
| OCEAN ALLIANCE | $4,500 |
| Individual grant recipient | $4,500 |
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.
Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 11%, against an area that typically sits at 11%. 43% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +51% since the first grant, against +43% for the ones you funded once.
31 repeat relationships — 12 still active in FY2025, 19 since wound down; 18 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, 43% of grant dollars renewed an existing relationship; $72k 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
- BOBILLION OYSTER PROJECT INC6× · 2019–2025 · $30k · revenue +265%
- CFCENTER FOR COASTAL STUDIES INC4× · 2018–2025 · $25k · revenue +380%
- THTHE HURRICANE ISLAND FOUNDATION7× · 2017–2025 · $24k · revenue +214%
Funded once
- LMLOGGERHEAD MARINE CENTERone grant, 2022 · $10k
ROCKING THE BOAT INCgraduatedone grant, 2022 · $10k · revenue +51%- GOGULF OF MAINE LOBSTER Fone grant, 2023 · $10k
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.
The organization's mission is to promote respect and appreciation for Puget Sound by teaching principles of environmental stewardship and inspire observation of and involvement with Puget Sound. Through its Marine Science Afloat program,…
The Center for Wooden Boats promotes Northwest Maritime Heritage through education, interpretation and hands-on experience in building, maintaining and using historic small craft.
The northeastern regional association of coastal and ocean observing systems' (neracoos) mission is to produce, integrate and communicate high- quality information that helps ensure safety, economic and environmental resilience, and…
The mission of wildcoast is to conserve coastal and marine ecosystems and address climate change through natural solutions. our staff is dedicated to conserving threatened and endangered coastlines and wildlife in california and mexico.…
The port townsend marine science center inspires conservation of the salish sea.
The institutes mission is to cultivate a responsibility for the natural environment and our human communities through interdisciplinary science education.
Preserving our Maritime Heritage by supporting working waterfront, promoting sustainable practices, and embracing the educational opportunities this stewardship provides.
Educational experiences focused on the marine environment and conservation. our programs and events utilize our local ocean waters as a natural learning platform.
To protect, preserve and interpret the martime heritage of the lower Merrimack Valley region and how it relates to American History
For reference, the grantee most central to the portfolio’s shape is Save the Bay Inc and the most unlike its peers is Marine Applied Research and Exploration. 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 29 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% 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.
67 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. 67 of the 97 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 BILLION OYSTER PROJECT INC ↗
- Who funds CENTER FOR COASTAL STUDIES INC ↗
- Who funds CALL OF THE SEA ↗
- Who funds THE HURRICANE ISLAND FOUNDATION ↗
- Who funds THE CORAL REEF ALLIANCE ↗
- Who funds FRIENDS OF CASCO BAY ↗
- Who funds SEA EDUCATION ASSOCIATION INC ↗
- Who funds THE GLOUCESTER ADVENTUREINC ↗
- Who funds SAVE THE BAY INC ↗
- Who funds Sound Experience ↗
- Who funds LONG LIVE THE KINGS ↗
- Who funds HUDSON RIVER COMMUNITY SAILING INC ↗
- Who funds Bellingham Bay Community Boating Center ↗
- Who funds Maine Island Trail Association ↗
- Who funds Northwest School of Wooden Boatbuilding ↗
- Who funds COMMUNITY BOATING CENTER INC ↗
- Who funds Cobscook Community Learning Center ↗
- Who funds ROCKING THE BOAT INC ↗
- Who funds CAPE COD MARITIME MUSEUMINC ↗
- Who funds World Ocean School Inc ↗
- Who funds SAIL NEWPORT ↗
- Who funds The Spaulding Wooden Boat Center ↗
- Who funds GULF OF MAINE RESEARCH INSTITUTE ↗
- Who funds SAIL MAINE ↗
- Who funds ROZALIA PROJECT ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds NOOKSACK SALMON ENHANCEMENT ASSOCIATION ↗
- Who funds Maine Center for Coastal Fisheries ↗
- Who funds Maine Maritime Museum ↗
- Who funds THE BUILDING CONSERVATION TRUST ↗
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: Patagoniaorg · Davis Conservation Foundation · Maine Community Foundation Inc · Orange County Community Foundation · Middlecott Foundation · Lucky Seven Foundation · Boston Foundation Inc · The Schmidt Family Foundation · Fisher Charitable Foundation · The Norcliffe Foundation · Seattle Foundation · National Fish and Wildlife 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 Bonnell Cove 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
- Save the Sound — 37% of income from government
- Center for Coastal Studies Inc — 26% of income from government
- Manomet Inc — 12% of income from government
- Sea Education Association Inc — 12% of income from government
- Soundwaters Inc — 4% of income from government
- World Ocean School Inc — 4% of income from government
- Chesapeake Bay Foundation Inc — 2% of income from government
- Annapolis Maritime Museum Inc — 2% of income from government
- Community Boating Center Inc — 1% of income from government
- Barry University Inc — 1% 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 Bonnell Cove Foundation?
Find your warmest path to Bonnell Cove 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.