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Form 990-PFTax year 2024EIN 23-2867116

Horizon Foundation Inc

A private foundation in Rockport, MA. Its return for tax year 2024 lists 110 grants and $1.3 million paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

Tax year 2024 (period ending Jun 30, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact
Horizon Foundation
PO Box 816
Rockport, MA 01966
(207) 773-5101
[email protected]
Form and materials
Horizon Foundation has shifted to an invite-only application process. If your organization received funding in the fall of 2023 or earlier you will be considered. Please visit the website for further information: https://www.horizonfoundation.org/how-to-apply
Deadlines
In October 2025 we will invite organizations to apply. Application deadline is November 3, 2025.
Restrictions
Horizon generally will make grants in the $5,000 to $20,000 range, with an average grant size of about $12,500. The Foundation does not fund or consider applications for: Annual, building, capital, or endowment fund drives; Colleges and universities; Emergency requests; Health/mental health programs; Individuals; International or foreign programs; Public and private schools; Religious projects; and/or State agencies. Additionally, past grantees must wait at least two years before reapplying.

Assets and giving by year

5 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2024

    $1,335,013

    Grants listed
    110
    Assets, end of year
    $32,023,639

  • Tax year 2023

    $1,184,554

    Grants listed
    91
    Assets, end of year
    $30,030,083

  • Tax year 2022

    $1,215,000

    Grants listed
    99
    Assets, end of year
    $26,791,548

  • Tax year 2021

    $1,290,152

    Grants listed
    106
    Assets, end of year
    $24,987,883

  • Tax year 2020

    $1,135,000

    Grants listed
    81
    Assets, end of year
    $29,351,529

Grants paid in 2024

110 grants, largest first

As listed on the return.

  1. 3S ArtspacePortsmouth, NH

    General Support

    $20,000
  2. Banner Lake Club IncHobe Sound, FL

    General Support

    $20,000
  3. Boys & Girls Club of Martin County IncHobe Sound, FL

    General Support

    $20,000
  4. Carver Foundation of Norwalk CTNorwalk, CT

    General Support

    $20,000
  5. Higher GroundKetchum, ID

    General Support

    $20,000
  6. House of HopeStuart, FL

    General Support

    $20,000
  7. Kieve Wavus EducationNobleboro, ME

    General Support

    $20,000
  8. New Canaan Country SchoolNew Canaan, CT

    Horizons Student Enrichment Program

    $20,000
  9. Osterville Village LibraryOsterville, MA

    General Support

    $20,000
  10. Portland Community SquashPortland, ME

    General Support

    $20,000
  11. ProsperityMEPortland, ME

    General Support

    $20,000
  12. Rangeley Lakes Heritage TrustRangeley, ME

    General Support

    $20,000
  13. The Ecology SchoolSaco, ME

    General Support

    $20,000
  14. The Everglades FoundationPalmetto Bay, FL

    General Support

    $20,000
  15. The Nature ConservancyArlington, VA

    The Nature Conservancy in Idaho

    $20,000
  16. Wood River Land TrustHailey, ID

    General Support

    $20,000
  17. Alliance to Protect Nantucket SoundHyannis, MA

    General Support

    $17,500
  18. Spaulding Rehabilitation Hospital CorporationCharlestown, MA

    General Support

    $17,500
  19. Arts Foundation of Cape CodHyannis, MA

    General Support

    $15,000
  20. Barnstable Clean Water CoalitionOsterville, MA

    General Support

    $15,000
  21. Camp Boggy CreekEustis, FL

    General Support

    $15,000
  22. Conservation Law FoundationBoston, MA

    General Support

    $15,000
  23. Maine AudubonFalmouth, ME

    General Support

    $15,000
  24. Maltz Jupiter TheatreJupiter, FL

    General Support

    $15,000
  25. Massachusetts Audubon SocietyLincoln, MA

    General Support

    $15,000
  26. Mill River Park CollaborativeStamford, CT

    General Support

    $15,000
  27. New Hampshire Charitable FoundationConcord, NH

    General Support

    $15,000
  28. Norwalk Grassroots Tennis & EducationNorwalk, CT

    General Support

    $15,000
  29. Preservation Foundation of Palm BeachPalm Beach, FL

    General Support

    $15,000
  30. Project LIFT IncHobe Sound, FL

    General Support

    $15,000
  31. The Maine Center for Public Interest ReportingHallowell, ME

    General Support

    $15,000
  32. Chebeague & Cumberland Land TrustCumberland, ME

    General Support

    $13,000
  33. Cultivating CommunityPortland, ME

    General Support

    $13,000
  34. HRDCBozeman, MT

    General Support

    $13,000
  35. Natural Resources Council of MaineAugusta, ME

    General Support

    $13,000
  36. Portland Parks ConservancyPortland, ME

    General Support

    $13,000
  37. Preble StreetPortland, ME

    General Support

    $13,000
  38. The Dirt Concern DBA Southwest Montana Mountain Bike AssociationBozeman, MT

    General Support

    $13,000
  39. Tinworks ArtBozeman, MT

    General Support

    $13,000
  40. Youth Full MaineBiddeford, ME

    General Support

    $13,000
  41. Cape Cod Maritime MuseumHyannis, MA

    General Support

    $12,500
  42. Connecticut Zoological Society IncBridgeport, CT

    General Support

    $12,500
  43. Girl Scouts of Eastern MassachusettsWaltham, MA

    General Support

    $12,500
  44. High Peaks AllianceFarmington, ME

    General Support

    $12,500
  45. The Westport Library AssociationWestport, CT

    General Support

    $12,500
  46. Truro Center for the Arts at Castle HillTruro, MA

    General Support

    $12,500
  47. YMCA Cape CodHyannis, MA

    General Support

    $12,500
  48. Coastal Rivers Conservation TrustDamariscotta, ME

    General Support

    $12,000
  49. RippleffectPortland, ME

    General Support

    $12,000
  50. West End House Girls CampParsonsfield, ME

    General Support

    $12,000
  51. A Company of GirlsPortland, ME

    General Support

    $10,000
  52. American Saltwater Guides AssociationFloral Park, NY

    General Support

    $10,000
  53. Big Brothers Big Sisters Mid MaineCamden, ME

    General Support

    $10,000
  54. Bigelow Laboratory for Ocean SciencesEast Boothbay, ME

    General Support

    $10,000
  55. Blue Scholars InitiativePinecrest, FL

    General Support

    $10,000
  56. Bozeman Bike KitchenBozeman, MT

    General Support

    $10,000
  57. Cape Arts and EntertainmentW Barnstable, MA

    General Support

    $10,000
  58. Central Lincoln County YMCAFarms at the YDamariscotta, ME

    General Support

    $10,000
  59. Defend Our HealthPortland, ME

    General Support

    $10,000
  60. Eagle Mount BozemanBozeman, MT

    General Support

    $10,000
  61. Friends of the Gallatin National Forest Avalanche CenterBozeman, MT

    General Support

    $10,000
  62. Greater Franklin Food CouncilFarmington, ME

    General Support

    $10,000
  63. GrowSmart MaineAugusta, ME

    General Support

    $10,000
  64. Hardy GirlsWaterville, ME

    General Support

    $10,000
  65. Indigo Arts AlliancePortland, ME

    General Support

    $10,000
  66. Jobs for Maine's Graduates IncAugusta, ME

    General Support

    $10,000
  67. LearningWorksPortland, ME

    General Support

    $10,000
  68. Locker ProjectPortland, ME

    General Support

    $10,000
  69. Maine Environmental Education AssociationBrunswick, ME

    General Support

    $10,000
  70. Maine Island Trail AssociationPortland, ME

    General Support

    $10,000
  71. Maine State Music TheatreBrunswick, ME

    General Support

    $10,000
  72. Midcoast ConservancyWaldoboro, ME

    General Support

    $10,000
  73. Montana Conservation CorpsBozeman, MT

    General Support

    $10,000
  74. My Place Teen CenterWestbrook, ME

    General Support

    $10,000
  75. NAMI Wood River Valley (NAMI-WRV)Hailey, ID

    General Support

    $10,000
  76. New Hampshire Philharmonic Orchestra IncConcord, NH

    General Support

    $10,000
  77. Northern Forest CenterConcord, NH

    General Support

    $10,000
  78. Palaver Strings IncPortland, ME

    General Support

    $10,000
  79. Penikese Island School IncWoods Hole, MA

    General Support

    $10,000
  80. Plimoth Patuxet MuseumsPlymouth, MA

    General Support

    $10,000
  81. Portland OvationsPortland, ME

    General Support

    $10,000
  82. Portland Public LibraryPortland, ME

    General Support

    $10,000
  83. Portland TrailsPortland, ME

    General Support

    $10,000
  84. Portsmouth Historical SocietyPortsmouth, NH

    General Support

    $10,000
  85. Princeton First Aid & Rescue SquadPrinceton, NJ

    General Support

    $10,000
  86. REACH Western ConnecticutBrookfield, CT

    General Support

    $10,000
  87. Regional YMCA of Western CTBrookfield, CT

    General Support

    $10,000
  88. Roots Family CollaborativeBozeman, MT

    General Support

    $10,000
  89. Seacoast Science Center IncRye, NH

    General Support

    $10,000
  90. Sierra Club FoundationOakland, CA

    Sierra Club, Maine Chapter

    $10,000
  91. Silvermine Arts CenterNew Canaan, CT

    General Support

    $10,000
  92. Stamford Public Education FoundationStamford, CT

    General Support

    $10,000
  93. Stratford Library AssociationStratford, CT

    General Support

    $10,000
  94. Teens to TrailsBrunswick, ME

    General Support

    $10,000
  95. The Granite YMCAManchester, NH

    General Support

    $10,000
  96. Vigorous TendernessPortland, ME

    General Support

    $10,000
  97. Apex Youth ConnectionBiddeford, ME

    General Support

    $8,000
  98. Comic KidsMiami, FL

    General Support

    $7,500
  99. SubcircleBiddeford, ME

    General Support

    $7,500
  100. Wayside Food ProgramsPortland, ME

    General Support

    $7,500
  101. Westrick Music AcademyPrinceton JCT, NJ

    General Support

    $7,000
  102. 7 Lakes AllianceBelgrade LKS, ME

    General Support

    $6,513
  103. Stamford HospitalStamford, CT

    General Support

    $5,500
  104. Coastal Kids PreschoolDamariscotta, ME

    General Support

    $5,000
  105. Daniel Webster Council Boy Scouts of AmericaManchester, NH

    General Support

    $5,000
  106. Delray Beach Children's Garden IncDelray Beach, FL

    General Support

    $5,000
  107. Help Center IncBozeman, MT

    General Support

    $5,000
  108. LoveYourBrain FoundationNorwich, VT

    General Support

    $5,000
  109. Sugarloaf Ski ClubCarabaset Vly, ME

    General Support

    $5,000
  110. The Mather Homestead FoundationStamford, CT

    General Support

    $5,000

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Environment19 grants $241,01326% of the total
  2. Arts and culture21 grants $225,00024% of the total
  3. Youth development8 grants $107,50012% of the total
  4. Human services8 grants $96,00010% of the total
  5. Food and agriculture5 grants $53,5006% of the total
  6. Education4 grants $52,5006% of the total
  7. 8 other causes14 grants $152,50016% of the total

By State

Grants to organizations with a US address, latest year.

  1. Maine46 grants $526,013
  2. Massachusetts14 grants $195,000
  3. Florida11 grants $162,500
  4. Connecticut13 grants $155,500
  5. Montana9 grants $94,000
  6. New Hampshire8 grants $90,000
  7. Idaho3 grants $50,000
  8. Virginia1 grant $20,000
  9. New Jersey2 grants $17,000
  10. California1 grant $10,000

Officers, directors and trustees

12 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Margaret B ChadbourneAsst Treasurer/Exec Dir. Hours 40Pay $93,250
  • Alexander K Buck JrDirector Hours 1Pay $0
  • Alexander K Buck IIIDirector (start 11/2024) Hours 1Pay $0
  • Anne E BuckDirector Hours 1Pay $0
  • Allie W BuckDirector (end 11/2024) Hours 1Pay $0
  • Mallory N BuckDirector (end 5/2025) Hours 1Pay $0
  • Norman Harrison BuckDirector Hours 1Pay $0
  • John A OgdenDirector Hours 1Pay $0
  • Nancy B BuckCo-President/Director Hours 5Pay $0
  • Sarah M BuckCo-President/Director Hours 5Pay $0
  • Callie BuckTreasurer/Director Hours 1Pay $0
  • Johnny P RitzoVice President/Secretary Hours 1Pay $0

The return

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