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· Private foundation

The Harbor Foundation

Its FY2026 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$18k
Granted FY2026still arriving
12
Grants FY2026still arriving
5
States reached
$5k
Largest
01What it funds
0194% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Recreation & Sports$26kPhilanthropy$18kEducation$17kEnvironment$15kPublic Safety & Disaster$12kHealth$11kScience & Tech$5kArts & Culture$5kOther$0
02FY2026 · 12 grants

Where the money goes

Grants by size, and the largest recipients.

$1,000
Median grant
5
States reached
$139k
Total assets
Largest grants
RecipientAmount
MAINE COMMUNITY FOUNDATION$5,000
CHARLES RIVER SCHOOL$3,000
VERMONT FOOD BANK$2,000
POVERELLO CENTER$2,000
WOOD ISLAND LIFE SAVING STATION ASSOCIATION$1,000
YORK LAND TRUST$1,000
AGAMENTICUS YACHT CLUB$1,000
HURRICANE ISLAND CENTER FOR SCIENCE AND LEADERSHIP$1,000
MONTANA STATE PARK ASSOCIATION$500
Individual grant recipient$500
CODY COUNTRY ART LEAGUE$500
PARK COUNTY YOUTH CYCLING$500
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Dollar for dollar, its grants (FY17–26) land where the poverty rate runs at 10%, against an area that typically sits at 7%. 96% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 7%CHARLES RIVER SCHOOL: $3k → 7%FRANKLIN LAND TRUST: $1k → 14%POVERELLO CENTER: $2k → 9%ST VINCENT HEALTHCARE FOUNDATION: $3k → 9%PSIA-AASI: $5k → 10%SWEET BRIAR COLLEGE: $2k → 13%YELLOWSTONE RECREATION FOUNDATION: $2k → 11%VERMONT FOOD BANK: $2k → 9%AGAWAM COUNCIL: $1k → 7%WOOD ISLAND LIFE SAVING STATION: $1k → 9%CHEWONKI: $1k → 9%HURRICANE ISLAND CENTER FOR SCIENCE AND LEADERSHIP: $2k → 11%MAINE COMMUNITY FOUNDATION: $5k → 11%FRANKLIN LAND TRUST: $1k → 14%ST VINCENT HEALTHCARE FOUNDATION: $2k → 9%SWEET BRIAR COLLEGE: $2k → 13%CODY COUNTRY ART LEAGUE: $2k → 11%WOOD ISLAND LIFE SAVING STATION ASSOCIATION: $1k → 9%HURRICANE ISLAND CENTER FOR SCIENCE: $1k → 11%MAINE COMMUNITY FOUNDATION: $4k → 11%FRANKLIN LAND TRUST: $1k → 14%ST VINCENT HEALTHCARE FOUNDATION: $2k → 9%SWEET BRIAR COLLEGE: $2k → 13%CRANDALL SUNLIGHT FIRE FIGHTERS: $1k → 11%WOOD ISLAND LIFE SAVING STATION ASSOCIATION: $1k → 9%HURRICANE ISLAND CENTER FOR SCIENCE: $1k → 11%MAINE COMMUNITY FOUNDATION: $3k → 11%FRANKLIN LAND TRUST: $1k → 14%ST VINCENT HEALTHCARE FOUNDATION: $2k → 9%SWEET BRIAR COLLEGE: $2k → 13%PARK COUNTY FIRE: $1k → 11%WOOD ISLAND LIFE SAVING STATION ASSOCIATION: $1k → 9%HURRICANE ISLAND CENTER FOR SCIENCE AND LEADERSHIP: $1k → 11%MAINE COMMUNITY FOUNDATION: $3k → 11%PEAKS TO CONGA CANCER: $2k → 9%SWEET BRIAR COLLEGE: $2k → 13%PARK COUNTY PEDALERS: $1k → 11%WOOD ISLAND LIFE SAVING STATION ASSOCIATION: $1k → 9%MAINE COMMUNITY FOUNDATION: $3k → 11%SWEET BRIAR COLLEGE: $1k → 13%CODY COUNTRY ART LEAGUE: $1k → 11%WOOD ISLAND LIFE SAVING STATION ASS: $1k → 9%MAINE COMMUNITY FOUNDATION: $2k → 11%EAGLEBROOK SCHOOL: $1k → 14%PARK COUNTY PEDALERS INC: $1k → 11%MAINE COMMUNITY FOUNDATION: $2k → 11%AGAMENTICUS YACHT CLUB: $5k → 9%YORK FIRE DEPARTMENT: $2k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

83%of every dollar goes to organizations it has funded before.
$95k · 20 repeat orgs$19k to everyone else

Grantees it renews have grown median revenue +10% since the first grant, against -30% for those funded once.

20 repeat relationships: 9 still active in FY2026, 11 since wound down; 2 grantees were first funded in FY2026 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

20
11

Total granted

$95k
$15k

Median revenue growth · since first grant

+10%
-30%

Still filing today

50%
27%

New vs renewed · share of each year

In FY2026, 69% of grant dollars renewed an existing relationship; $4k went to new ones.

50%100%’17’19’21’22’23’24’25’26
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’19’21’22’23’24’25’26
EducationEnvironmentRecreation & SportsArts & CultureHousing & ShelterFood & NutritionOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • AY
    AGAMENTICUS YACHT CLUB INC
    8× · 2017–2026 · $15k · revenue +80%
  • SB
    SWEET BRIAR INSTITUTE
    7× · 2017–2025 · $13k · revenue +2%
  • SV
    ST VINCENT HEALTHCARE FOUNDATION INC
    4× · 2021–2024 · $8k · revenue +107%

Funded once

  • IG
    Individual grant recipient
    one grant, 2019 · $5k
  • YR
    YELLOWSTONE RECREATIONS FOUNDATION
    one grant, 2017 · $2k · revenue -100%
  • PT
    PEAKS TO CONGA CANCER
    one grant, 2019 · $2k
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.

04Its field

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.

1
Kennebunk Land Trust

Kennebunk Land Trust's mission is to permanently conserve and steward land to benefit natural and human communities.

Environment
2
Somerset Woods Trustees

To conserve lands with significant ecological or cultural resources and manage them in a sustainable way for public benefit.

Environment
3
Islesboro Islands Trust

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…

Philanthropy
4
Wyoming Outdoor Council

The wyoming outdoor council's mission is to protect wyoming's environment and quality of life now and for future generations.

Environment
5
Midcoast Conservancy

The mission of Midcoast Conservancy is to protect vital lands and waters on a scale that matters and to inspire wonder and action on behalf of all species and the Earth.

Environment
6
Coastal Mountains Land Trust

We conserve land permanently to benefit the natural and human communities of western the Penobscot Bay region.

Environment
7
Massachusetts Land Conservation Trust

Conservation and preservation of land.

Environment
8
Maine Appalachian Trail Land Trust

To preserve and protect land surrounding the appalachian trail in maine for public benefit.

Environment
9
Wildlands Trust Inc

The wildlands trust works throughout southeastern massachusetts to conserve and permanently protect native habitats, farmland, and lands of high ecologic and scenic value that serve to keep our communities healthy and our residents…

Environment
10
Fallbrook Land Conservancy

To acquire, protect, and manage open space in perpetuity for the benefit of wildlife and the community.

Environment
11
Adirondack Mountain Club Inc

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…

Environment
12
The Montana Land Reliance

The mission of the montana land reliance (mlr) is to partner with landowners to provide permanent protection for private lands that are significant for agricultural production, fish and wildlife habitat, and open space.

Environment
How this is measured
The grantee most central to the portfolio’s shape is St Vincent Healthcare Foundation Inc; 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.
04the grantee network

16 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 16 of the 34 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.

0
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
16/16
Grantees still filing
10/16
Grew since first funded

Where the money sits, by cause and then by grantee

AGAMENTICUS YACHT CLUB INC: $14,500 · OtherAGAMENTICUS YACHT CLUB INCST VINCENT HEALTHCARE FOUNDATION INC: $7,500 · OtherST VINCENT HEALTHCARE FOUNDATION INCIndividual grant recipient: $6,000 · OtherIndividual grant recipientPSIA-AASI NORTHERN ROCKY MOUNTAIN: $5,000 · OtherPSIA-AASI NORTHERN ROCKY MOUNTAINIndividual grant recipient: $5,000 · OtherIndividual grant recipientYORK VOLUNTEER FIRE DEPARTMENT INC: $4,000 · OtherYORK VOLUNTEER FIRE DEPARTMENT INCHURRICANE ISLAND CENTER FOR SCIENCE AND LEADERSHIP: $3,500 · OtherHURRICANE ISLAND CENTER FOR SCIENCE AND LEADERSHIPMONTANA STATE PARK ASSOCIATION: $3,500 · OtherMONTANA STATE PARK ASSOCIATIONIndividual grant recipient: $3,000 · Other+11 more: $13,250 · Other+11 moreMaine Community Foundation Inc: $23,000 · PhilanthropyMaine Community Fou…SWEET BRIAR INSTITUTE: $12,500 · EducationSWEET BRIAR INST…THE CHARLES RIVER SCHOOL INC: $4,750 · EducationTHE CHARLES RIVE…White Pine Programs: $1,500 · EducationWhite Pine Progr…ALLEN-CHASE FOUNDATION DBA EAGLEBROOK SCHOOL: $1,000 · EducationWOOD ISLAND LIFE SAVING STATION ASSOCIATION: $6,000 · EnvironmentWOOD ISLAND L…FRANKLIN LAND TRUST INC: $5,000 · EnvironmentFRANKLIN LAND…YORK LAND TRUST: $5,000 · EnvironmentYORK LAND TRU…CODY COUNTRY ART LEAGUE: $5,000 · Arts & CultureYELLOWSTONE RECREATIONS FOUNDATION: $2,000 · Recreation & SportsMONTANA SKATEPARK ASSOCIATION: $1,000 · Recreation & SportsAGAWAM COUNCIL: $1,000 · Recreation & SportsPOVERELLO CENTER INC: $2,000 · Housing & ShelterVERMONT FOODBANK: $2,000 · Food & Nutrition
Other$65,250Philanthropy$23,000Education$19,750Environment$16,000Arts & Culture$5,000Recreation & Sports$4,000Housing & Shelter$2,000Food & Nutrition$2,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMaine Community Foundation Inc: $23,000 over 8y, 0.0% of budgetAGAMENTICUS YACHT CLUB INC: $14,500 over 8y, 1.9% of budgetSWEET BRIAR INSTITUTE: $12,500 over 7y, 0.0% of budgetST VINCENT HEALTHCARE FOUNDATION INC: $7,500 over 4y, 0.0% of budgetWOOD ISLAND LIFE SAVING STATION ASSOCIATION: $6,000 over 6y, 0.2% of budgetCODY COUNTRY ART LEAGUE: $5,000 over 5y, 0.7% of budgetFRANKLIN LAND TRUST INC: $5,000 over 6y, 0.1% of budgetYORK LAND TRUST: $5,000 over 7y, 0.1% of budgetTHE CHARLES RIVER SCHOOL INC: $4,750 over 5y, 0.0% of budgetYELLOWSTONE RECREATIONS FOUNDATION: $2,000 over 1y, 0.3% of budgetWhite Pine Programs: $1,500 over 3y, 0.1% of budgetALLEN-CHASE FOUNDATION DBA EAGLEBROOK SCHOOL: $1,000 over 1y, 0.0% of budgetMONTANA SKATEPARK ASSOCIATION: $1,000 over 2y, 0.2% of budgetAGAWAM COUNCIL: $1,000 over 1y, 0.0% of budget
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 Maine Community Foundation Inc ↗
  • Who funds AGAMENTICUS YACHT CLUB INC ↗
  • Who funds SWEET BRIAR INSTITUTE ↗
  • Who funds ST VINCENT HEALTHCARE FOUNDATION INC ↗
  • Who funds WOOD ISLAND LIFE SAVING STATION ASSOCIATION ↗
  • Who funds CODY COUNTRY ART LEAGUE ↗
  • Who funds FRANKLIN LAND TRUST INC ↗
  • Who funds YORK LAND TRUST ↗
  • Who funds THE CHARLES RIVER SCHOOL INC ↗
  • Who funds POVERELLO CENTER INC ↗
  • Who funds YELLOWSTONE RECREATIONS FOUNDATION ↗
  • Who funds VERMONT FOODBANK ↗
  • Who funds White Pine Programs ↗
  • Who funds ALLEN-CHASE FOUNDATION DBA EAGLEBROOK SCHOOL ↗
  • Who funds MONTANA SKATEPARK ASSOCIATION ↗
  • Who funds AGAWAM COUNCIL ↗

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.

New Hampshire Charitable FoundationNH13× affinity4 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization The Harbor Foundation funds: left to right is the share of its income from government, bottom to top the share from The Harbor Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%0%1%3%5%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 7%
  • Franklin Land Trust Inc: 7% of income from government
no gov moneyreceives it· size = income
2get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–40%
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 34 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2026, released 2026. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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