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Massachusetts · Private foundation

Horizon Foundation Inc

Its FY2025 filing reports that it accepted unsolicited grant applications.

$1.3M
Granted FY2025(still arriving)
110
Grants FY2025
90
Organizations funded FY2024
30%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$20,000
Organizations funded a year
80 to 101
FY2021 to FY2024
States reached, FY2025
12
Total assets, FY2025
$32M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 30% of the organizations Horizon Foundation Inc funded were first-time grantees, receiving 20% of its grant dollars.

New vs renewed · share of each year

In FY2024, 80% of grant dollars renewed an existing relationship; $236k went to new ones.

50%100%’22’23’24
RenewedFirst-time

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

’22’23’24
Arts & CultureEnvironmentHuman ServicesYouth DevelopmentEducationRecreation & SportsOther
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 arriving108$1.3M32%
FY202490$1.2M30%
FY202397$1.2M58%
FY2022101$1.3M91%
FY202180$1.1Mn/a
99% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Environment$1.9MArts & Culture$1.0MHuman Services$608kYouth Development$603kEducation$582kRecreation & Sports$380kFood & Nutrition$336kHealth$167kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
VT
NH
ID
MT
MI
NY
MA
OR
NJ
CT
CA
CO
VA
DC
FL

Top grantees

Largest recipients by total granted, FY2021 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 255 grantees
All grantees of Horizon Foundation Inc by total granted
GranteeTotal grantedYearsShare of their budget
The Banner Lake Club Inc$75,00031%
Alliance to Protect Nantucket Sound Inc$62,50033%
Osterville Free Library Corporation$60,50042%
The Carver Inc$60,00030%
Bigelow Laboratory for Ocean Sciences$60,00040%
Midcoast Conservancy$60,00041%
Boys & Girls Club of Martin County$60,00030%
Project Lift Inc$55,00031%
Prosperityme$55,00031%
Higher Ground USA Inc$54,10030%
Portland Community Squash$50,00031%
Maine Audubon Society$50,00030%
Norwalkstamford Grassroots Tennis & Education Inc$50,00032%
Norwalk Land Trust Inc$50,000319%
Ecology Education Inc$50,00031%
Mill River Collaborative Inc$50,00031%
The Conservation Fund a Nonprofit Corporation$50,00030%
Maine Farmland Trust$45,00020%
Regional Young Men's Christian Association of Western Connecticut Inc$45,00030%
New England Forestry Foundation Inc$45,00030%
Locker Project$45,00031%
Three Bays Preservation Inc$44,00031%
Natural Resources Council of Maine Inc$43,00030%
Maine Environmental Education Association$43,00033%
My Place Teen Center Inc$43,00031%
Stamford Public Education Foundation Inc$42,50031%
Coastal Rivers Conservation Trust$42,00031%
Kieve Wavus Education Inc$40,00020%
Idaho Base Camp Inc$40,00021%
Barnstable Land Trust Inc$40,00022%
Portland Ovations$40,00032%
Defend Our Health$40,00031%
Snake River Waterkeeper Inc$40,00026%
Jobs for Maine's Graduates Inc$40,00030%
Rangeley Lakes Heritage Trust Inc$40,00020%
Person to Person Inc$40,00020%
New Canaan Mounted Troop Inc$40,00022%
Association to Preserve Cape Cod Inc$38,50021%
Wood River Land Trust Co$38,00020%
The Trust for Public Land$37,50020%
Maine Conservation Alliance$37,50033%
Mass General Brigham Incorporated$37,5002n/a
Bonefish & Tarpon Trust Inc$37,00030%
Youth Full Maine$36,00034%
Learningworks$35,00031%
Full Plates Full Potential$35,00022%
Cranberry Sunset Farm Inc$35,00024%
Center at 353 Inc$35,00021%
Boys & Girls Club of Greenwich$35,00020%
Maine Public Broadcasting Corporation$35,00020%
Island Institute$35,00020%
Hurricane Island Outward Bound School$34,50020%
Rowayton Arts Center$34,00025%
The New Canaan Library Inc$34,00020%
Lee Pesky Learning Center Inc$34,00021%
Connecticut Zoological Societyinc$32,50020%
Maine Island Trail Association$32,50031%
Appalachian Mountain Club$32,50020%
Princeton First Aid and Rescue Squad$32,40031%
Silvermine Guild of Artists Inc$30,00021%
Pihcintu$30,000221%
Stepping Stones Museum for Children Inc$30,00020%
Maine Coast Heritage Trust$30,00020%
The Arts Foundation of Cape Cod$30,00022%
The Trustees of Reservations$30,00020%
Portland Maine Symphony Orchestra$30,00020%
Young Mens Christian Association of Princeton$30,00021%
Gulf of Maine Research Institute$30,00020%
Experience Camps$30,00020%
A Company of Girls$30,00036%
Trout Unlimited Inc$30,00020%
Portland Museum of Art$30,00020%
Family Centers Inc$30,00020%
Historical Society of Martin County Inc$30,00021%
Patrons of the Trumbull Nature & Arts Center$30,000213%
Boys & Girls Clubs of Southern Maine$30,00020%
Cultivating Community$28,00021%
Preble Street$28,00020%
Chebeague & Cumberland Land Trust$28,00023%
317 Main St Community Center Inc$27,50021%
Good Shepherd Food Bank$27,50020%
Girl Scouts of Eastern Massachusetts Inc$27,50020%
Mayo Street Arts$25,00023%
Great Bay Stewards Inc$25,00043%
Olympia Snowe Women's Leadership Institute$25,00021%
Massachusetts Audubon Society Inc$25,00020%
Northern Forest Center Inc$25,00030%
Ketcha Outdoors$25,00021%
Indigo Arts Alliance$25,00021%
Teens to Trails$25,00026%
Side x Side Inc$25,00023%
Growsmart Maine$25,00027%
Friends of Casco Bay$25,00021%
West End House Girls Camp Inc$24,50023%
Freeport Conservation Trust$24,00034%
High Peaks Alliance$22,50023%
New Canaan Nature Center Association Inc$20,78021%
Gather$20,50020%
Portland Parks Conservancy$20,50023%
The Dunbar Center Inc$20,00011%
The Window Dressers Inc$20,00024%
Sierra Club Foundation$20,00020%
Cape Cod Maritime Museuminc$20,00021%
Meetinghouse Arts$20,00024%
Horizons National Student Enrichment Program Inc$20,00010%
Fabien Cousteau Ocean Learning Center I Nc$20,0001n/a
Heart of Biddeford$20,00023%
Sun Valley Ski Education Foundation Inc$20,00011%
Intempo Organization Inc$20,00022%
The New Canaan Country School Incorporated$20,00010%
Human Services Council Inc$20,00011%
Maine Mountain Collaborative$20,00026%
Penikese Island School Inc$20,00023%
Maine State Music Theatre$20,00020%
The Everglades Foundation Inc$20,00010%
Acadia Center$20,00021%
Palaver Strings Inc$20,00022%
Darien Library Inc$19,50010%
Westrick Music Academy Inc$19,00021%
Centerville Public Library Association Inc$18,00013%
Blue Scholars Initiative Inc$18,00027%
Sail Maine$17,50021%
Our Climate Common$17,50027%
Truro Center for the Arts at Castle Hill Inc$17,50020%
Tempoart$17,500210%
Cotuit Center for the Arts Inc$17,10511%
Maine Academy of Modern Music$17,00021%
Darien Community Young Men's Christian Association Inc$15,00010%
Maine GearShare$15,00018%
The Granite Young Men's Christian Association$15,00020%
Maltz Jupiter Theatre Inc$15,00010%
Manomet Inc$15,00010%
Friends of Katahdin Woods & Waters$15,00010%
Maine Mathematics & Science Alliance$15,00010%
Engine Inc$15,00013%
Wild Seed Project$15,00013%
Maine Center for Public Interest Reporting$15,00011%
Heritage Museums and Gardens Inc$15,00010%
Hobe Sound Child Care Center Inc$15,00011%
New Hampshire Philharmonic Orchestra Incorporated$15,00025%
Big Brothers Big Sisters of Southern ME$15,000110%
Subcircle Inc$15,000211%
Foodcorps Inc$15,00010%
Love Live Local Inc$15,00023%
The Boggy Creek Gang Inc$15,0001n/a
Roots Family Collaborative$15,00025%
Wayside Food Programs$15,00021%
Maine People's Resource Center$15,00011%
Greens Ledge Light Preservation Society Inc$15,00012%
Boys & Girls Club of Cape Cod Inc$15,00011%
Girl Scouts of Connecticut Inc$15,00010%
The Preservation Foundation of Palm Beach Inc$15,00010%
Conservation Law Foundation Inc$15,00010%
Coastal Maine Botanical Gardens Inc$14,96710%
Falmouth Conservation Trust Dba Falmouth Land Trust$14,50012%
Tinworks Art$13,0001n/a
Westport Library Association Inc$12,50010%
Seacoast Science Center Inc$12,50020%
Portsmouth Historical Society$12,50020%
Junior Achievement of Maine Inc$12,50012%
Illustration Institute$12,50012%
Friends of Seabrook Community$12,00012%
Junior Art & Music Inc$12,00017%
Rotary Club of Falmouth Cape Cod$12,000110%
Rippleffect Inc$12,00011%
The Stamford Hospital$11,00020%
Big Brothers Big Sisters of Mid-Maine$10,0001n/a
Vigorous Tenderness$10,0001n/a
Environmental & Energy Technology Council of Maine$10,00016%
Rangeley Friends of the Performing Arts Inc$10,00014%
Big Sky Youth Empowerment Project Inc$10,00011%
Nami-Wood River Valley Inc$10,0001n/a
Montana Conservation Corps Inc$10,00010%
Bozeman Bike Kitchen$10,0001n/a
Waterway Advocates Inc$10,0001n/a
passivhausMAINE$10,0001n/a
Momentum Conservation$10,00014%
Maine Charitable Mechanic Association$10,00013%
Plimoth Patuxet Museums Inc$10,0001n/a
American Saltwater Guides Alliance Inc$10,0001n/a
Freeport Community Services$10,00011%
Greater Franklin Food Council$10,0001n/a
Love Your Brain Foundation Inc$10,00020%
Maine Philanthropy Center$10,00012%
Cape Arts & Entertainment Inc$10,00010%
Friends of the Gallatin National Forest$10,00013%
The Climate Initiative$10,00010%
Portland Trails$10,0001n/a
Maine Historical Society$10,00011%
The Allagash Wilderness Waterway Foundation$10,00014%
Greater Portland Council of Governments$10,0001n/a
Boy Scouts of America 330 Daniel Webster Council Inc$10,00020%
Eagle Mount$10,00010%
Stratford Library Association$10,00010%
Millhill Child & Family Development Corporation$10,00010%
Cook and Grow$10,0001n/a
Coastal Kids Preschool$10,00020%
Blaine County Hunger Coalition Inc$10,00010%
Sugarloaf Ski Club$10,00022%
Portland Public Library$10,00010%
Isles Inc$10,00010%
Speak About It$10,00013%
Fairgate Farm Inc$10,0001n/a
Falmouth Historical Society Inc$10,00012%
Maine Coast Fishermens Assn$9,50010%
Apex Youth Connection$8,00012%
White Pine Programs$8,00011%
Bowdoin International Music Festival$8,00010%
The Warner House Association$8,00014%
Maine Huts & Trails$7,50011%
Our Place Portland Inc$7,50014%
Rural Aspirations Project$7,50012%
Nobleboro Historical Society$7,500111%
Maine Foodscapes Inc$7,5001n/a
240 Strings$7,500110%
A Climate to Thrive$7,50012%
Comic Kids Inc$7,500126%
Greater Portland Immigrant Welcome Center$7,50011%
Project Music Inc$7,50012%
American National Red Cross & Its Constituent Chapters and Branches$7,50010%
Living Soil Network$7,5001n/a
Girls on the Run - Maine$7,50013%
7 Lakes Alliance Inc$6,5131n/a
The Greenwich Land Trust Inc$5,50011%
Sea Change Yoga$5,40012%
Speedwell Projects$5,00013%
Boys & Girls Clubs of Mercer County Inc$5,00010%
Friends of Congress Square Park$5,00012%
Maine Writers and Publishers Allian$5,00011%
Frank Knight Foundation$5,0001n/a
Hobe Sound Nature Center Inc$5,00011%
EVERY CHILD VALUED A NJ NonProfit Corporation$5,00012%
Mather Homestead Foundation$5,00011%
The Carpenters Boat Shop$5,00011%
Passion for Life$5,0001n/a
United Way of Tri Vally Area$5,00012%
The Susan L Curtis Foundation$5,00011%
Rowayton Civic Association Inc$5,00011%
SPACE Gallery$5,00010%
Hearty Roots Inc$5,00011%
Help Center Inc$5,00010%
Happiness Is Camping$5,00010%
The Dennis Conservation Land Trust$5,00011%
Maine Needs Inc$5,00011%
New Jersey Seeds Inc$5,00010%
Arts Are Elementary$5,000112%
Delray Beach Children's Garden Inc Christina Nicodemou$5,00012%
Emerson Center for the Arts and Culture$5,00010%
Peregrine Corporation$3,65410%
Sonshine Soup Kitchen$3,50011%
Rangeley Lakes Region Historical Society$3,00012%
Biscayne Bay Waterkeeper Inc$3,00020%
Ocean First Institute$2,50010%
Friends of the Commodore Trail Inc$2,50011%
Port City Makerspace$2,50012%

What it could do for these grantees

Plus 35 recipients with no EIN on record ($618k), not named here.

Where it is load-bearing

Horizon Foundation Inc supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 200 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Banner Lake Club Inc: $75,000 over 3y, 1.0% of budgetAlliance to Protect Nantucket Sound Inc: $62,500 over 3y, 2.5% of budgetOsterville Free Library Corporation: $60,500 over 4y, 2.2% of budgetThe Carver Inc: $60,000 over 3y, 0.3% of budgetBigelow Laboratory for Ocean Sciences: $60,000 over 4y, 0.1% of budgetMidcoast Conservancy: $60,000 over 4y, 0.7% of budgetBoys & Girls Club of Martin County: $60,000 over 3y, 0.2% of budgetProject Lift Inc: $55,000 over 3y, 0.8% of budgetProsperityme: $55,000 over 3y, 1.1% of budgetHigher Ground USA Inc: $54,100 over 3y, 0.4% of budgetPortland Community Squash: $50,000 over 3y, 0.8% of budgetMaine Audubon Society: $50,000 over 3y, 0.4% of budgetNorwalkstamford Grassroots Tennis & Education Inc: $50,000 over 3y, 1.5% of budgetNorwalk Land Trust Inc: $50,000 over 3y, 19% of budgetEcology Education Inc: $50,000 over 3y, 0.7% of budgetMill River Collaborative Inc: $50,000 over 3y, 0.6% of budgetThe Conservation Fund a Nonprofit Corporation: $50,000 over 3y, 0.0% of budgetMaine Farmland Trust: $45,000 over 2y, 0.4% of budgetRegional Young Men's Christian Association of Western Connecticut Inc: $45,000 over 3y, 0.3% of budgetNew England Forestry Foundation Inc: $45,000 over 3y, 0.3% of budgetLocker Project: $45,000 over 3y, 1.3% of budgetThree Bays Preservation Inc: $44,000 over 3y, 1.2% of budgetNatural Resources Council of Maine Inc: $43,000 over 3y, 0.4% of budgetMaine Environmental Education Association: $43,000 over 3y, 2.9% of budgetMy Place Teen Center Inc: $43,000 over 3y, 1.3% of budgetStamford Public Education Foundation Inc: $42,500 over 3y, 1.0% of budgetCoastal Rivers Conservation Trust: $42,000 over 3y, 0.6% of budgetKieve Wavus Education Inc: $40,000 over 2y, 0.2% of budgetIdaho Base Camp Inc: $40,000 over 2y, 1.0% of budgetBarnstable Land Trust Inc: $40,000 over 2y, 1.7% of budgetPortland Ovations: $40,000 over 3y, 1.6% of budgetDefend Our Health: $40,000 over 3y, 1.0% of budgetSnake River Waterkeeper Inc: $40,000 over 2y, 5.5% of budgetJobs for Maine's Graduates Inc: $40,000 over 3y, 0.1% of budgetRangeley Lakes Heritage Trust Inc: $40,000 over 2y, 0.3% of budgetPerson to Person Inc: $40,000 over 2y, 0.1% of budgetNew Canaan Mounted Troop Inc: $40,000 over 2y, 1.6% of budgetAssociation to Preserve Cape Cod Inc: $38,500 over 2y, 1.1% of budgetWood River Land Trust Co: $38,000 over 2y, 0.4% of budgetThe Trust for Public Land: $37,500 over 2y, 0.0% of budgetMaine Conservation Alliance: $37,500 over 3y, 2.5% of budgetBonefish & Tarpon Trust Inc: $37,000 over 3y, 0.5% of budgetYouth Full Maine: $36,000 over 3y, 3.5% of budgetLearningworks: $35,000 over 3y, 0.6% of budgetFull Plates Full Potential: $35,000 over 2y, 1.7% of budgetCranberry Sunset Farm Inc: $35,000 over 2y, 3.8% of budgetCenter at 353 Inc: $35,000 over 2y, 1.3% of budgetBoys & Girls Club of Greenwich: $35,000 over 2y, 0.3% 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 200.

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.

Onion FoundationME135.6× affinity72 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Onion Foundation · Maine Community Foundation Inc · Sam L Cohen Foundation · Elmina B Sewall Foundation · Morton-Kelly Charitable Trust · Davis Family Foundation · Fisher Charitable Foundation · Davis Conservation Foundation · Stephen & Tabitha King Foundation Inc · Quimby Family Foundation · Leonard C & Mildred F Ferguson Foundation · Bangor Savings Bank 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 Horizon Foundation Inc with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Horizon Foundation Inc?

Find your warmest path to Horizon Foundation Inc 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.

About Horizon Foundation Inc

How much does Horizon Foundation Inc give?
Horizon Foundation Inc reported 110 grants totaling $1,335,013 in its FY2025 IRS filing. It funded between 80 and 101 organizations a year over FY2021 to FY2024.
What does Horizon Foundation Inc fund?
By grant dollars over FY2021 to FY2025, its largest causes are Environment (31%), Arts & Culture (16%), Human Services (10%).
Who are Horizon Foundation Inc's largest grantees?
By total granted over FY2021 to FY2025: The Banner Lake Club Inc ($75k), Alliance to Protect Nantucket Sound Inc ($63k), Osterville Free Library Corporation ($61k).
Does Horizon Foundation Inc fund new organizations?
In FY2024, 30% of the organizations it funded were first-time grantees.
Does Horizon Foundation Inc accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Horizon Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include Onion Foundation, Maine Community Foundation Inc, Sam L Cohen Foundation.
Where is Horizon Foundation Inc based?
Horizon Foundation Inc is based in MA.

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 293 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

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