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Harrison Foundation at a glance

· Private foundation

Harrison Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$207k
Granted FY2025still arriving
23
Grants FY2025still arriving
8
States reached
$36k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0196% classified

What it funded, over time

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

Environment$441kPhilanthropy$324kInternational$92kEducation$77kFood & Nutrition$41kHousing & Shelter$27kAnimals$25kArts & Culture$9kOther$0
02FY2025 · 23 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k18 grants · $71k
  • $10k–50k5 grants · $136k
$5,000
Median grant
8
States reached
$2.0M
Total assets
Largest grants
RecipientAmount
PRECIOUS PROJECT INC$36,000
THE NATURE CONSERVANCY IN MAINE$32,500
Individual grant recipient$30,000
FOREST SOCIETY OF MAINE$27,500
DIRECT RELIEF$10,000
WOODWELL CLIMATE RESEARCH CENTER$7,500
LOON ECHO LAND TRUST$5,000
AMERICARES$5,000
GILMORE$5,000
DOCTOR'S WITHOUT BORDERS$5,000
HOMEWARD BOUND OF MARIN$5,000
BUCK CENTER FOR RESEARCH ON AGING$5,000
LAKES ENVIRONMENTAL ASSOICATION$5,000
MAINE TREE FOUNDATION$5,000
UNIVERSITY OF NEW ENGLAND$5,000
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 (FY17–25) land where the poverty rate runs at 8%, against an area that typically sits at 8%. 30% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 8%PRECIOUS PROJECT: $49k → 7%WOODWELL CLIMATE RESEARCH CENTER: $8k → 8%PRECIOUS PROJECT: $27k → 8%BUCK CENTER FOR RESEARCH ON AGING: $5k → 8%Community Foundation of Sonoma County: $8k → 9%THE REDWOODS LEAGUE: $5k → 10%DIRECT RELIEF: $15k → 14%NORTH VALLEY COMMUNITY FOUNDATION: $5k → 18%DOCTOR'S WITHOUT BORDERS: $5k → 17%The Gilmore Mailing: $10k → 12%AMERICARES: $5k → 9%THE NATURE CONSERVANCY: $38k → 7%CONWAY HUMANE SOCIETY: $8k → 9%THE NATURE CONSERVANCY IN MAINE: $33k → 7%University of New England: $5k → 9%MAINE TREE FOUNDATION: $5k → 12%PRECIOUS PROJECT: $48k → 7%PRECIOUS PROJECT: $21k → 8%HOMEWARD BOUND OF MARIN: $5k → 8%COMMUNITY FOUNDATION OF SONOMA COUNTY: $5k → 9%DIRECT RELIEF: $10k → 14%DOCTORS WITHOUT BORDERS: $5k → 17%GILMORE: $5k → 12%THE NATURE CONSERVANCY: $30k → 7%LOON ECHO LAND TRUST: $10k → 7%UNIVERSITY OF NEW ENGLAND: $5k → 9%FOREST SOCIETY OF MAINE: $28k → 15%PRECIOUS PROJECT: $32k → 7%Precious Project: $7k → 8%HOMEWARD BOUND OF MARIN: $5k → 8%DIRECT RELIEF: $8k → 14%DOCTORS WITHOUT BORDERS: $5k → 17%THE NATURE CONSERVANCY: $30k → 7%LOON ECHO LAND TRUST: $8k → 7%FOREST SOCIETY OF MAINE: $25k → 15%PRECIOUS PROJECT: $29k → 7%THE NATURE CONSERVANCY: $30k → 7%PRECIOUS PROJECT: $29k → 7%THE NATURE CONSERVANCY: $30k → 7%PRECIOUS PROJECT INC: $36k → 7%THE NATURE CONSERVANCY: $28k → 7%The Nature Conservancy: $7k → 7%MOUNTAIN PLAY: $30k → 8%MOUNTAIN PLAY: $30k → 8%San Francisco Marin Food Bank: $7k → 8%San Francisco Marin Food Bank: $7k → 8%Maine Community Foundation: $7k → 7%CAMP ARCADIA SCHOLARSHIP FOUNDATION: $16k → 7%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.

Which US states its grants reach

ME
VT
NH
MI
NY
MA
CT
RI
CA
VA
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 21% of Harrison Foundation’s grant dollars are earmarked for a different county than the recipient’s own address.

Harrison Foundationlessmore of its giving
Placed by recipient address
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

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

93%of every dollar goes to organizations it has funded before.
$793k · 23 repeat orgs$57k to everyone else

23 repeat relationships: 14 still active in FY2025, 9 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

23
9

Total granted

$793k
$34k

Median revenue growth · since first grant

+98%
+108%

Still filing today

70%
56%

New vs renewed · share of each year

In FY2025, 86% of grant dollars renewed an existing relationship; $24k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
EnvironmentInternationalEducationAnimalsArts & CulturePhilanthropyOther
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

  • PP
    PRECIOUS PROJECT INC
    9× · 2017–2025 · $279k · revenue +340%
  • DIRECT RELIEF
    9× · 2017–2025 · $56k · revenue +94%
  • University of New England
    9× · 2017–2025 · $45k · revenue +24%

Funded once

  • MO
    MARIN OPEN SPACE TRUST
    one grant, 2024 · $10k · revenue -91%
  • IG
    Individual grant recipient
    one grant, 2023 · $10k
  • CH
    CONWAY HUMANE SOCIETY
    one grant, 2018 · $8k
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
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
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
Maine Farmland Trust

Maine Farmland Trust protects farmland, supports farmers, and advances the future of farming.

Food & Nutrition
4
Coastal Mountains Land Trust

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

Environment
5
Kennebunk Land Trust

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

Environment
6
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
7
Maine Appalachian Trail Land Trust

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

Environment
8
Nantucket Conservation Foundation Inc

The nantucket conservation foundation owns, protects, and stewards over 9,000 acres of land and coastal shoreline, conserves nantucket's rare and significant natural resources, and engages in impactful ecological research to inform…

Environment
9
Connecticut Farmland Trust Inc

Protect Connecticuts farmland for agricultural use by purchasing and accepting donations of agricultural conservation easements

Food & Nutrition
10
Land Conservancy of West Michigan

Our mission is conserving West Michigans ecologically critical land. We protect land by creating public nature preserves, providing support to communities and local governments in creating natural areas, and helping private landowners…

Environment
11
Maine Cancer Foundation

Maine Cancer Foundation is dedicated to reducing cancer incidence and mortality rates in Maine. 100% of funds raised by the Foundation are used to benefit the people of Maine.

Health
12
Sustainable Conservation

Sustainable Conservation advances the collaborative stewardship of Californias land, air, and water for the benefit of nature and people. For over three decades, Sustainable Conservation has built coalitions of people with different…

Environment
How this is measured
The grantee most central to the portfolio’s shape is North Valley Community Foundation; the most unlike its peers is San Francisco Food Bank. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

30 grantees tracked through their own filings, 2017–2025.

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 30 of the 44 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)
11
Early backer (in before they grew)
30/30
Grantees still filing
21/30
Grew since first funded

Where the money sits, by cause and then by grantee

THE NATURE CONSERVANCY: $229,200 · OtherTHE NATURE CONSERVANCYIndividual grant recipient: $63,000 · OtherIndividual grant recipientSAN FRANCISCO FOOD BANK: $20,500 · OtherCAMP ARCADIA SCHOLARSHIP FOUNDATION: $20,000 · OtherGood Shepard Food Bank of Maine: $17,500 · Other+19 more: $81,700 · Other+19 morePRECIOUS PROJECT INC: $279,000 · PhilanthropyPRECIOUS PROJECT INCMaine Community Foundation Inc: $22,000 · PhilanthropyMaine Community Foundation IncSONOMA COUNTY COMMUNITY FOUNDATION: $13,000 · Philanthropy+2 more: $10,000 · PhilanthropyForest Society of Maine: $78,000 · EnvironmentForest Society of …Loon Echo Land Trust Inc: $37,500 · EnvironmentLoon Echo Land Tru…LAKES ENVIRONMENTAL ASSOCIATION: $27,000 · EnvironmentLAKES ENVIRONMENTA…MAINE TREE FOUNDATION: $16,300 · EnvironmentMAINE TREE FOUNDAT…AMMONOOSUC CONSERVATION TRUST: $16,000 · EnvironmentAMMONOOSUC CONSERV…MARIN OPEN SPACE TRUST: $10,000 · EnvironmentMARIN OPEN SPACE T…+1 more: $2,500 · EnvironmentDIRECT RELIEF: $55,500 · InternationalDIRECT RE…MEDECINS SANS FRONTIERES USA INC: $31,000 · InternationalMEDECINS …AMERICARES FOUNDATION INC: $5,000 · InternationalAMERICARE…University of New England: $45,000 · Education+1 more: $500 · EducationHomeward Bound of Marin: $26,500 · Housing & ShelterTHE NORMAN BIRD SANCTUARY TRUST: $15,500 · AnimalsCONWAY AREA HUMANE SOCIETY: $2,000 · Animals
Other$431,900Philanthropy$324,000Environment$187,300International$91,500Education$45,500Housing & Shelter$26,500Animals$17,500

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 budgetPRECIOUS PROJECT INC: $279,000 over 9y, 5.1% of budgetTHE NATURE CONSERVANCY: $229,200 over 9y, 0.0% of budgetForest Society of Maine: $78,000 over 9y, 0.9% of budgetDIRECT RELIEF: $55,500 over 9y, 0.0% of budgetUniversity of New England: $45,000 over 9y, 0.0% of budgetLoon Echo Land Trust Inc: $37,500 over 9y, 1.5% of budgetMEDECINS SANS FRONTIERES USA INC: $31,000 over 9y, 0.0% of budgetLAKES ENVIRONMENTAL ASSOCIATION: $27,000 over 9y, 0.5% of budgetHomeward Bound of Marin: $26,500 over 7y, 0.0% of budgetMaine Community Foundation Inc: $22,000 over 6y, 0.0% of budgetSAN FRANCISCO FOOD BANK: $20,500 over 4y, 0.0% of budgetCAMP ARCADIA SCHOLARSHIP FOUNDATION: $20,000 over 2y, 9.6% of budgetMAINE TREE FOUNDATION: $16,300 over 7y, 0.6% of budgetAMMONOOSUC CONSERVATION TRUST: $16,000 over 9y, 0.6% of budgetTHE NORMAN BIRD SANCTUARY TRUST: $15,500 over 9y, 0.2% of budgetSONOMA COUNTY COMMUNITY FOUNDATION: $13,000 over 2y, 0.0% of budgetMARIN OPEN SPACE TRUST: $10,000 over 1y, 0.7% of budgetWoodwell Climate Research Center Inc: $8,500 over 2y, 0.0% of budgetTHE SUMMER CAMP INC: $7,000 over 3y, 0.7% of budgetAMERICARES FOUNDATION INC: $5,000 over 1y, 0.0% of budgetMARIN COMMUNITY FOUNDATION: $5,000 over 1y, 0.0% of budgetGood Shepherd Food Bank: $3,000 over 1y, 0.0% of budgetSAVE THE REDWOODS LEAGUE: $2,500 over 1y, 0.0% of budgetCONWAY AREA HUMANE SOCIETY: $2,000 over 2y, 0.2% of budgetThe Susan L Curtis Foundation: $1,200 over 1y, 0.1% of budgetEnriching Lives Through Music: $1,000 over 1y, 0.1% of budgetNORTHERN FOREST CANOE TRAIL INC: $1,000 over 1y, 0.3% of budgetYes The Ross Valley Schools Foundation: $500 over 1y, 0.0% of budgetDAY ONE: $500 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 PRECIOUS PROJECT INC ↗
  • Who funds THE NATURE CONSERVANCY ↗
  • Who funds Forest Society of Maine ↗
  • Who funds DIRECT RELIEF ↗
  • Who funds University of New England ↗
  • Who funds Loon Echo Land Trust Inc ↗
  • Who funds MEDECINS SANS FRONTIERES USA INC ↗
  • Who funds LAKES ENVIRONMENTAL ASSOCIATION ↗
  • Who funds Homeward Bound of Marin ↗
  • Who funds Maine Community Foundation Inc ↗
  • Who funds SAN FRANCISCO FOOD BANK ↗
  • Who funds CAMP ARCADIA SCHOLARSHIP FOUNDATION ↗
  • Who funds MAINE TREE FOUNDATION ↗
  • Who funds AMMONOOSUC CONSERVATION TRUST ↗
  • Who funds THE NORMAN BIRD SANCTUARY TRUST ↗
  • Who funds SONOMA COUNTY COMMUNITY FOUNDATION ↗
  • Who funds MARIN OPEN SPACE TRUST ↗
  • Who funds Woodwell Climate Research Center Inc ↗
  • Who funds THE SUMMER CAMP INC ↗
  • Who funds AMERICARES FOUNDATION INC ↗
  • Who funds MARIN COMMUNITY FOUNDATION ↗
  • Who funds NORTH VALLEY COMMUNITY FOUNDATION ↗
  • Who funds Good Shepherd Food Bank ↗
  • Who funds SAVE THE REDWOODS LEAGUE ↗
  • Who funds CONWAY AREA HUMANE SOCIETY ↗
  • Who funds The Susan L Curtis Foundation ↗
  • Who funds Enriching Lives Through Music ↗

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.

Maine Community Found…Davis Conservation Fo…Onion FoundationElmina B Sewall Found…The Nature ConservancyMarin Community Found…Fidelity FoundationNew Hampshire Charita…The Bank of America C…American Endowment Fo…Morgan Stanley Global…National Philanthropi…
Maine Community Foundation IncME20.5× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Maine Community Foundation Inc · Davis Conservation Foundation · Onion Foundation · Elmina B Sewall Foundation · The Nature Conservancy · Marin Community Foundation · Fidelity Foundation · New Hampshire Charitable Foundation · The Bank of America Charitable Foundation Inc · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust

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 Harrison Foundation funds: left to right is the share of its income from government, bottom to top the share from Harrison Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%1%3%6%10%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 4%
  • Woodwell Climate Research Center Inc: 11% of income from government
  • Northern Forest Canoe Trail Inc: 4% of income from government
  • Americares Foundation Inc: 0% of income from government
no gov moneyreceives it· size = income
2get no government money at all
9report 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 Harrison Foundation?

Find your warmest path to Harrison 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 44 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Harrison’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home