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Maine · Public charity

Island Institute

We boldly navigate climate and economic change with island and coastal communities to expand opportunities and deliver solutions.

$704k
Granted FY2025(still arriving)
13
Itemized grants FY2025
13
Organizations funded FY2024
38%
First-time grantees FY2024
Read the full brief
Itemized, FY2025
$442k
The rest is grants the schedule does not break out
Median grant, FY2025
$15,000
Largest grant, FY2025
$180,811
Organizations funded a year
12 to 16
FY2018 to FY2024
States reached, FY2025
1
Total assets, FY2025
$42M

How open it is to new grantees

In FY2024, 38% of the organizations Island Institute funded were first-time grantees, receiving 33% of its grant dollars.

New vs renewed · share of each year

In FY2024, 67% of grant dollars renewed an existing relationship; $65k went to new ones.

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

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

’19’20’21’22’23’24
EnvironmentEducationPublic BenefitHuman ServicesAnimalsOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving12$442k50%
FY202413$197k38%
FY202316$1.2M25%
FY202212$510k50%
FY202114$923k57%
FY202015$176k73%
FY201912$100k92%
FY201814$137kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Food & Nutrition$2.2MEnvironment$513kCommunity Improvement$348kYouth Development$289kPublic Benefit$156kArts & Culture$50kEducation$46kMembership Benefit$40kOther$0

Top grantees

Largest recipients by total granted, FY2018 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Luke's Lobster Holding LLC$2,425,1365n/a
Monhegan Plantation$82,4626n/a
Town of Isle Au Haut$77,5003n/a
Eastport Energy Committee$55,2293n/a
Town of Swans Island$52,0004n/a
Town of Frenchboro$50,4613n/a
Town of Roque Bluffs$46,6803n/a
Hancock County Planning Commission$43,00048%
Pendleton Yacht Yard$40,0001n/a
Town of Islesboro$40,0004n/a
Show all 63 grantees
All grantees of Island Institute by total granted
GranteeTotal grantedYearsShare of their budget
Luke's Lobster Holding LLC$2,425,1365n/a
Monhegan Plantation$82,4626n/a
Town of Isle Au Haut$77,5003n/a
Eastport Energy Committee$55,2293n/a
Town of Swans Island$52,0004n/a
Town of Frenchboro$50,4613n/a
Town of Roque Bluffs$46,6803n/a
Hancock County Planning Commission$43,00048%
Pendleton Yacht Yard$40,0001n/a
Town of Islesboro$40,0004n/a
Frenchboro Congregational Church$37,8832n/a
Town of Vinalhaven$32,0003n/a
Maine Ocean Farms LLC$30,0001n/a
Town of Brooksville$30,0003n/a
Town of Southport$27,5003n/a
National Lead for America Inc$26,66710%
Axiom Education & Training Center$25,0001n/a
Midcoast Council of Governments$24,5003n/a
National Audubon Society Inc$23,00030%
Town of Georgetown$20,5632n/a
Town of North Haven$20,0002n/a
Arrowsic Broadband Authority$20,0002n/a
Momentum Conservation$20,00024%
Biddeford Internet Corp$20,0001n/a
Matinicus Isle Plantation$20,0001n/a
Town of Damariscotta$19,9052n/a
FB Environmental Associates$19,7401n/a
Town of Stonington$15,0001n/a
Axiom Education & Training Center$15,00012%
Greater Portland Council of Governments$15,0001n/a
Town of Bristol$15,0001n/a
Town of Tremont$15,0001n/a
Foundation for a Strong Maine Economy$15,0001n/a
Wells National Estuarine$15,0001n/a
Vinalhaven Fish Co-op$13,0001n/a
Town of Chebeague Island$12,7002n/a
Hylan and Brown Boat Builders$10,0001n/a
Town of Camden$10,0001n/a
Peaks Environmental Action Team$10,0001n/a
Long Island Civic Association$10,0001n/a
Town of Phippsburg$10,0001n/a
Coalition for the Common Good$10,00010%
Swans Island$10,0001n/a
Town of South Thomaston$10,0001n/a
Penobscot$10,0001n/a
Greenhead Lobster LLC$10,0001n/a
Town of Cumberland$9,6171n/a
Kennebec Estuary Land Trust$9,32211%
Harpswell$9,2451n/a
Town of Gouldsboro$8,9571n/a
Stgeorge Community Development Corp$8,00013%
Town of Brunswick$7,9301n/a
Town of Wiscasset$7,5001n/a
Lincolnville Public Schools$6,2501n/a
Town of Searsport$6,2501n/a
City of Biddeford Maine$6,0001n/a
Machiasport$6,0001n/a
Town of Waldoboro$6,0001n/a
Downeast Salmon Federation$6,00011%
Milbridge Public Library$6,0001n/a
Frenchboro Historical Society$5,8181n/a
Long Island$5,0001n/a
Sustainable Cliff Island$5,0001n/a

Plus 2 recipients with no EIN on record ($15k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Island Institute supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetHancock County Planning Commission: $43,000 over 4y, 7.8% of budgetNational Lead for America Inc: $26,667 over 1y, 0.3% of budgetNational Audubon Society Inc: $23,000 over 3y, 0.0% of budgetMomentum Conservation: $20,000 over 2y, 4.0% of budgetAxiom Education & Training Center: $15,000 over 1y, 1.5% of budgetCoalition for the Common Good: $10,000 over 1y, 0.0% of budgetKennebec Estuary Land Trust: $9,322 over 1y, 0.6% of budgetStgeorge Community Development Corp: $8,000 over 1y, 2.7% of budgetDowneast Salmon Federation: $6,000 over 1y, 0.6% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 9.

Nonprofits that may fit its grantmaking

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 Foundation IncME37× affinity20 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: Maine Community Foundation Inc · Center for Technology and Civic Life · Maine Coast Heritage Trust · Elmina B Sewall Foundation · Davis Conservation Foundation · Onion Foundation · National Fish and Wildlife Foundation · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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.

Compare Island Institute with peer funders

About Island Institute

How much does Island Institute give?
Island Institute reported 13 itemized grants totaling $442,040, out of $704,475 in total grant expense reported on the return in its FY2025 IRS filing. It funded between 12 and 16 organizations a year over FY2018 to FY2024.
What does Island Institute fund?
By grant dollars over FY2018 to FY2025, its largest causes are Food & Nutrition (59%), Environment (14%), Community Improvement (9%).
Who are Island Institute's largest grantees?
By total granted over FY2018 to FY2025: Luke's Lobster Holding LLC ($2.4M), Monhegan Plantation ($82k), Town of Isle Au Haut ($78k).
Does Island Institute fund new organizations?
In FY2024, 38% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Island Institute?
Its strongest co-funders, measured against what their size predicts, include Maine Community Foundation Inc, Center for Technology and Civic Life, Maine Coast Heritage Trust.
Where is Island Institute based?
Island Institute is based in ME.

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 65 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 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

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