Horizon Foundation Inc is a private family foundation established in 1997 and based in Rockport, Massachusetts. The foundation is designated as a 501(c)(3) public foundation and has been tax-exempt since December 1996. It supports nonprofit organizations in select geographic regions where its trustees live and work, with a focus on building organizational and community-wide effectiveness and creating sustainable, vibrant, and resilient communities.
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$32.0M
+6.6% YoY
Annual Giving
$1.3M
+12.7% YoY
Grant Count
110
+20.9% YoY
Avg Grant Size
$12K
-6.8% YoY
Under IRS private-foundation payout rules, Horizon Foundation Inc reported a distributable amount of $1.5M for 2025 — the minimum it must pay out in qualifying distributions.
Mission & Focus Areas
The foundation's mission is to support nonprofit organizations that aspire to create and maintain sustainable, vibrant and resilient communities by:
- Enabling children and adults to lead their communities in creative, healthy and thoughtful ways
- Educating citizens to be good stewards of the environment
- Conserving land and water resources
- Encouraging service to others
- Promoting visual arts and music
- Teaching appreciation of and preserving historic assets
Primary funding areas include:
- Environment: Programs teaching environmental stewardship, conservation of natural resources, renewable energy, forest and farmland conservation, and energy efficiency. In Maine specifically, environmental funding largely supports organizations implementing climate action strategies.
- Community Development and Human Services: Grants enabling children and adults to be creative, healthy, and thoughtful; educating and motivating people to become strong leaders; organizations promoting service to others; food security and assistance for vulnerable populations
- Arts and Music: Visual arts and music programs
- Historic Preservation: Teaching appreciation of and preserving historic assets
- Education: Educational and leadership development opportunities
Grantmaking
Average Grant
of approximately $12,500.
Review Cycle
per year with a decision timeline of approximately 6-8 weeks from invitation.
Invitation Only
**: Invitation-only. The foundation operates two grant cycles per year with a decision timeline of approximately 6-8 weeks from invitation.
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Geographic Focus
Where this funder awards grants
The foundation's giving is aligned with the geographic and programmatic interests of its trustees. Organizations must be based in or primarily serve one or more of the following communities:
- Connecticut: Fairfield County
- Florida: Martin and Palm Beach Counties
- Idaho: Blaine County
- Maine: Cumberland, Lincoln, Franklin, and York Counties
- Massachusetts: Barnstable County
- Montana: Gallatin County
- New Hampshire: Rockingham County
- New Jersey: Mercer County
In Maine, the foundation will support organizations serving children, providing arts, enrichment, educational and leadership development opportunities, and those assuring food security and assistance for vulnerable populations.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
Total Assets: $32,023,639 (2025)
Total Revenues: $2,974,708 (2025)
Total Expenses: $1,615,853 (2025)
Total Liabilities: $0 (2024)
Annual Giving: $1,335,013 (2024)
Staffing: 1 employee
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $32,023,639 | $30,030,083 | $26,791,548 |
| Revenue | $2,974,708 | $3,492,075 | $1,265,706 |
| Expenses | $1,615,853 | $1,467,435 | $1,486,427 |
| Qualifying Distributions | $1,469,891 | $1,320,517 | $1,375,128 |
| Net Investment Income | $2,865,043 | $3,392,204 | $1,174,230 |
| Distributable Amount | $1,504,405 | $1,321,760 | $1,248,251 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
Grant Size Distribution
250 grants across all recorded years
Open Grants
1 open opportunity from Horizon Foundation Inc
Giving History
Grant recipients and amounts by year
Among its reported 2025 grants, the largest include 3S Artspace ($20,000), Banner Lake Club Inc ($20,000), Boys & Girls Club of Martin County Inc ($20,000).
| Recipient | Purpose | Amount |
|---|---|---|
| 3S Artspace Portsmouth, NH | General Support | $20,000 |
| 7 Lakes Alliance Belgrade Lakes, ME | General Support | $6,513 |
| A Company of Girls Portland, ME | General Support | $10,000 |
| Alliance to Protect Nantucket Sound Hyannis, MA | General Support | $17,500 |
| American Saltwater Guides Association Floral Park, NY | General Support | $10,000 |
| Apex Youth Connection Biddeford, ME | General Support | $8,000 |
| Arts Foundation of Cape Cod Hyannis, MA | General Support | $15,000 |
| Banner Lake Club Inc Hobe Sound, FL | General Support | $20,000 |
| Barnstable Clean Water Coalition Osterville, MA | General Support | $15,000 |
| Big Brothers Big Sisters Mid Maine Camden, ME | General Support | $10,000 |
Leadership & Key People
Leadership team and compensation from IRS filings
Margaret B Chadbourne serves as Executive Director (as of 2024).
Compensation Overview
From 2025 IRS filing
From 2025 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Margaret B Chadbourne | Asst Treasurer/Exec Dir. | 40 | $93,250 |
| Alexander K Buck Jr | Director | 1 | — |
| Alexander K Buck III | Director (start 11/2024) | 1 | — |
| Anne E Buck | Director | 1 | — |
| Allie W Buck | Director (end 11/2024) | 1 | — |
| Mallory N Buck | Director (end 5/2025) | 1 | — |
| Norman Harrison Buck | Director | 1 | — |
| John A Ogden | Director | 1 | — |
| Nancy B Buck | Co-President/Director | 5 | — |
| Sarah M Buck | Co-President/Director | 5 | — |
| Callie Buck | Treasurer/Director | 1 | — |
| Johnny P Ritzo | Vice President/Secretary | 1 | — |
Contact Information
Address: PO Box 816, Rockport, MA 01966-0916
Phone: 978-675-5359 or 207-773-5101
Email: info@horizonfoundation.org
Website: horizonfoundation.org
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What does Horizon Foundation Inc fund?
The foundation's mission is to support nonprofit organizations that aspire to create and maintain sustainable, vibrant and resilient communities by: • Enabling children and adults to lead their communities in creative, healthy and thoughtful ways • Educating citizens to be good stewards of the environment • Conserving land and water resources • Encouraging service to others • Promoting visual arts and music • Teaching appreciation of and preserving historic assets Primary funding areas include:…
How do I apply for a grant from Horizon Foundation Inc?
**Grant Amounts**: Typical awards range from $5,000 to $40,000, with an average grant of approximately $12,500. **Annual Giving**: Approximately $1.2 million to $1.3 million annually, with 81-100 grants awarded per year. **Application Process**: Invitation-only. The foundation operates two grant cycles per year with a decision timeline of approximately 6-8 weeks from invitation. **Recent Grant Activity**: In 2024, the foundation made 91 awards totaling $1,184,554. Recent grantees include Boys a…
Where does Horizon Foundation Inc make grants?
The foundation's giving is aligned with the geographic and programmatic interests of its trustees. Organizations must be based in or primarily serve one or more of the following communities: • **Connecticut**: Fairfield County • **Florida**: Martin and Palm Beach Counties • **Idaho**: Blaine County • **Maine**: Cumberland, Lincoln, Franklin, and York Counties • **Massachusetts**: Barnstable County • **Montana**: Gallatin County • **New Hampshire**: Rockingham County • **New Jersey**: Mercer Cou…
What size grants does Horizon Foundation Inc award?
In 2025, Horizon Foundation Inc awarded 110 grants totaling $1.3M — an average of about $12K per grant, based on its IRS Form 990 filings.
How much is Horizon Foundation Inc required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2025, Horizon Foundation Inc reported a distributable amount of $1.5M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Horizon Foundation Inc's EIN?
Horizon Foundation Inc's EIN (Employer Identification Number) is 23-2867116. IRS Form 990 filing data is available on this page for 2021–2025.
Explore Open Grants
Browse active grant opportunities in Horizon Foundation Inc's focus areas in our free grants database
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Data last updated June 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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