· Private foundation
The Harbor 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.
| Recipient | Amount |
|---|---|
| MAINE COMMUNITY FOUNDATION | $3,000 |
| MONTANA STATE PARK ASSOCIATION | $1,000 |
| PARK COUNTY YOUTH CYCLING | $1,000 |
| WOOD ISLAND LIFE SAVING STATION ASSOCIATION | $1,000 |
| Individual grant recipient | $1,000 |
| YORK LAND TRUST | $1,000 |
| CODY COUNTRY ART LEAGUE | $1,000 |
| YORK VOLUNTEER FIRE DEPARTMENT | $1,000 |
| SWEET BRIAR COLLEGE | $750 |
| SWEET BRIAR COLLEGE | $750 |
| FRANKLIN LAND TRUST | $500 |
| AGAMENTICUS YACHT CLUB | $500 |
| HURRICANE ISLAND CENTER FOR SCIENCE AND LEADERSHIP | $500 |
| CHARLES RIVER SCHOOL | $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 10%, against an area that typically sits at 7%. 98% 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.
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 +10% since the first grant, against -30% for the ones you funded once.
19 repeat relationships — 11 still active in FY2025, 8 since wound down; 1 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, 90% of grant dollars renewed an existing relationship; $1k 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
- AYAGAMENTICUS YACHT CLUB INC7× · 2017–2025 · $14k · revenue +80%
- SBSWEET BRIAR INSTITUTE7× · 2017–2025 · $13k · revenue +2%
- SVST VINCENT HEALTHCARE FOUNDATION INC4× · 2021–2024 · $8k · revenue +107%
Funded once
- IGIndividual grant recipientone grant, 2019 · $5k
- YRYELLOWSTONE RECREATIONS FOUNDATIONone grant, 2017 · $2k · revenue -100%
- PTPEAKS TO CONGA CANCERone grant, 2019 · $2k
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.
Kennebunk Land Trust's mission is to permanently conserve and steward land to benefit natural and human communities.
Conservation of lyme's natural, scenic and historic land & water resources.
To conserve lands with significant ecological or cultural resources and manage them in a sustainable way for public benefit.
Adk is the only non-profit organization in new york state dedicated to the conservation, preservation, and responsible recreational use of the new york state forest preserve and other parks, wild lands, and waters vital to our members and…
Protecting, enhancing and conserving open spaces encompassing meadows, woodlands, wetlands, and waterways in the town of wilton ct.
The mission of Islesboro Islands Trust is to enhance the quality of residents' lives through the preservation of open space, educate all residents as to the value of the island's natural ecosystems, and act as an environmental advocate on…
Conservation and preservation of land.
We conserve land permanently to benefit the natural and human communities of western the Penobscot Bay region.
Our mission is to permanently conserve and steward natural resources across our island and mainland communities for the benefit of current and future generations.
The mission of the mount desert land & garden preserve is to conserve and share the beauty of our historic lands and gardens.
The royal river conservation trust (rrct) is a regional land trust working primarily in seven maine municipalities. the trust owns,cares for, and stewards land and conservation easements to protect land and water resources for the general…
The wyoming outdoor council's mission is to protect wyoming's environment and quality of life now and for future generations.
For reference, the grantee most central to the portfolio’s shape is Franklin Land Trust Inc and the most unlike its peers is Yellowstone Recreations Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
14 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. 14 of the 32 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 Maine Community Foundation Inc ↗
- Who funds AGAMENTICUS YACHT CLUB INC ↗
- Who funds SWEET BRIAR INSTITUTE ↗
- Who funds ST VINCENT HEALTHCARE FOUNDATION INC ↗
- Who funds FRANKLIN LAND TRUST INC ↗
- Who funds WOOD ISLAND LIFE SAVING STATION ASSOCIATION ↗
- Who funds CODY COUNTRY ART LEAGUE ↗
- Who funds YORK LAND TRUST ↗
- Who funds YELLOWSTONE RECREATIONS FOUNDATION ↗
- Who funds THE CHARLES RIVER SCHOOL INC ↗
- Who funds White Pine Programs ↗
- Who funds MONTANA SKATEPARK ASSOCIATION ↗
- Who funds ALLEN-CHASE FOUNDATION DBA EAGLEBROOK SCHOOL ↗
- Who funds AGAWAM COUNCIL ↗
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: New Hampshire Charitable Foundation · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile 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 Harbor 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.
- Franklin Land Trust Inc — 7% 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 Harbor Foundation?
Find your warmest path to The Harbor 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.