The Horne Family Foundation logo

The Horne Family Foundation

Private foundation · Grantmaker Boston, MA EIN: 04-3104008 Website

The Horne Family Foundation is a private foundation based in Boston, Massachusetts. Its website describes two separate divisions: wildlife, environment, and animal welfare issues; and human services causes in Massachusetts’ Merrimack Valley and southern New Hampshire.

The Horne Family Foundation at a glance

In short: The Horne Family Foundation gave $789K across 49 grants in 2024 (avg $16K), top state Massachusetts. 65% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.

Annual giving (2024)
$789,321
+6.2% vs 2023
Grants made (2024)
49
-2.0% vs 2023
Average grant
$16,109
+8.4% vs 2023
Median grant
$15,000
Total assets
$9,867,025
-5.3% vs 2023
New grantees (estimate)
65% first-time grantees (32 of 49, 2024)
Primary geography
Massachusetts (23% of itemized 2024 grant dollars)
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to The Horne Family Foundation

How to Apply

The foundation’s 2023 filing says it does not restrict giving to preselected organizations and lists a grant application available on its website. The filing says award limitations are available on the website.

Review Cycle
The filing lists March 31 and September 30. These dates are past application cycles as of October 2, 2026. The foundation’s website also displays a March 31, 2017 application deadline, which is past.
Deadline
The filing lists March 31 and September 30.
Contact

Application contact: Tara V Horne
Mailing address: PO Box 272, Kittery, ME 03904
Phone: (207) 703-2919
Website: https://hornefamilyfoundation.org

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who The Horne Family Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Environmental Investigation Agency: $25KEnvironmental InvestigationAgency$25KIsland Press: $25KIsland Press$25KThe Story of Stuff: $25KThe Story of Stuff$25KNewhouse Wildlife Center: $25KNewhouse Wildlife Center$25KAmerican Society of Landscape Architects: $22KAmerican Society of LandscapeArchitects$22KKope Lion: $20KKope Lion$20KBoys and Girls Club of Souhegan Valley: $20KBoys and Girls Club ofSouhegan Valley$20KCenter for Biological Diversity: $20KCenter for BiologicalDiversity$20KCenter for Canine Behavior Studies: $20KCenter for Canine BehaviorStudies$20KClimate Finance Action: $20KClimate Finance Action$20K

The largest 2024 recipient was Environmental Investigation Agency ($25K). Together the top 10 received $221K.

Grant Size Distribution

296 grants across all recorded years

295<$50K1$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 295 grants of 296 (100%).

Geographic Focus

Where this funder awards grants

The foundation’s website identifies the Merrimack Valley in Massachusetts and southern New Hampshire as the region for its human-services division. In 2024, the largest shares of grant dollars by recipient state went to Massachusetts (23%) and New Hampshire (18%), followed by Washington, DC (9%), California (6%), and New York (5%).

Grant Distribution by State

31states

Share of 2024 grant dollars across all 49 itemized grants.

Cities

LawrenceWashingtonManchesterConcordPortsmouthBostonSan FranciscoLowellNew YorkNashuaAtlantaCambridgeExeterNewmarketAndoverBoulderBristolDanversRidgefieldSudbury

Is The Horne Family Foundation open to new grantees?

65%

first-time grantees, 2024

In 2024, 32 of 49 grantees (65%) were first-time recipients. First grants averaged $18K; repeat grants $13K. How we count

Medians: $20K first-time, $10K repeat.

  • 18% of 2024 grantees were also funded in 2023. Method
  • Giving held roughly steady from 2021 to 2024 (+7%). Method
  • In 2024 it paid out 132% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$250K$500K$750K$1M73 grants2020 68 grants2021 56 grants2022 50 grants2023 49 grants2024

From 2020 to 2024, annual grant giving ranged from $737K (2021) to $840K (2020). In 2024 it made 49 grants totaling $789K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Environmental Investigation Agency Washington, DCSupports General Activities$25,000
Island Press Washington, DCSupports General Activities$25,000
The Story of Stuff Berkeley, CASupports General Activities$25,000
Newhouse Wildlife Center Chelmsford, MASupports General Activities$24,781
American Society of Landscape Architects Washington, DCSupports General Activities$21,500
Kope Lion New York, NYSupports General Activities$20,200
Boys and Girls Club of Souhegan Valley Milford, NHSupports General Activities$20,000
Center for Biological Diversity Tucson, AZSupports General Activities$20,000
Center for Canine Behavior Studies Salisbury, CTSupports General Activities$20,000
Climate Finance Action Boston, MASupports General Activities$20,000
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Financial History

Multi-year comparison from IRS filings

The foundation files Form 990-PF.

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2024$9,867,025$433,316$1,008,454$789,32149$789,321$64,183$597,978
2023$10,423,196$556,335$927,044$743,16250$743,162$222,453$564,834
2022$10,855,431$1,423,477$910,997$745,00056$745,000$199,829$566,078
2021$10,296,222$548,937$894,733$737,00068—$299,614$595,685
2020$10,368,132$867,303$973,119$839,50073—$681,320$581,022

Under IRS private-foundation payout rules, The Horne Family Foundation reported a distributable amount of $598K for 2024 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated October 2026.

Mission & Focus Areas

The foundation’s website identifies wildlife, environment, and animal welfare issues as one division, and human services causes as the other. It lists education, healthcare, human services, and arts in its website title.

The grantees’ own descriptions show the range of organizations supported. Island Press says it creates and promotes ideas and solutions to improve environmental practices and policies. The Environmental Investigation Agency describes work to protect the global climate, forests, wildlife, and natural environment through research, advocacy, and investigation. Veterinarians International says it provides veterinary aid and education to improve animal and community well-being. The Boys and Girls Club of Souhegan Valley describes its work as helping young people reach their potential.

Grantmaking

In 2024, the foundation made 49 grants totaling $789,321. Grants ranged from $5,000 to $25,000, with a median of $15,000.

Among the largest listed grants were $25,000 each to Island Press and the Environmental Investigation Agency, and $21,500 to the American Society of Landscape Architects. Other 2024 grants included $20,000 to Veterinarians International, Environmental Health Sciences, and Earth Law Center.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists Timothy P. Horne as manager, president, treasurer, and director, and Walter J. Flowers as clerk.

The Horne Family Foundation is led by Timothy P. Horne, Manager, President, Treasurer & Director on every filing since 2020; none of the 2 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Timothy P. Horne

    Manager, President, Treasurer & Director

    On filings since 2020

    1 hr/week

    No compensation reported

  • Walter J. Flowers

    Clerk

    On filings since 2020

    2 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about The Horne Family Foundation

How much does The Horne Family Foundation give each year?

The Horne Family Foundation gave $789K across 49 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $743K across 50 grants.

What is The Horne Family Foundation's typical grant size?

The Horne Family Foundation's median grant in 2024 was $15,000, and its average grant was $16,109, across 49 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from The Horne Family Foundation that year got $18K on average.

Where does The Horne Family Foundation give grants?

The Horne Family Foundation's top state is Massachusetts, with 23% of the grant dollars itemized on its 2024 IRS Form 990-PF. The next largest states were New Hampshire (18%) and District of Columbia (9%). The most frequent recipient cities were Portsmouth, NH (4 grants), Washington, DC (3 grants), Lawrence, MA (3 grants) and New York, NY (2 grants).

Does The Horne Family Foundation give general operating support?

Yes: 100% of The Horne Family Foundation's 2024 grants with a stated purpose (49 of 49) were for general or operating support, per its 2024 IRS Form 990-PF.

Who are The Horne Family Foundation's largest grantees?

The Horne Family Foundation's largest 2024 grantees include Environmental Investigation Agency ($25,000), Island Press ($25,000) and The Story of Stuff ($25,000), according to its 2024 IRS Form 990-PF. Together they received 10% of its itemized 2024 grant dollars.

How large is The Horne Family Foundation?

The Horne Family Foundation reported $9.9M in total assets on its 2024 IRS Form 990-PF. It paid out $789K in qualifying distributions that year, against a required minimum of $598K (roughly 5% of its investment assets).

What does The Horne Family Foundation fund?

The foundation’s website identifies wildlife, environment, and animal welfare issues as one division, and human services causes as the other. It lists education, healthcare, human services, and arts in its website title. See mission & focus areas ↑

How do I apply for a grant from The Horne Family Foundation?

The foundation’s 2023 filing says it does not restrict giving to preselected organizations and lists a grant application available on its website. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is The Horne Family Foundation's EIN?

The Horne Family Foundation's EIN (Employer Identification Number) is 04-3104008. IRS Form 990 filing data is available on this page for 2020–2024.

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated October 2026.

Data update history

(1)

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

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Cite this profile

Grantable. (2026). The Horne Family Foundation funder profile. GrantGraph. Retrieved October 13, 2026, from https://grantable.co/funders/the-horne-family-foundation-morg_4f5b9c9a02844afea5bf72cd0ec9a101

BibTeX
@misc{grantable_043104008_2026,
  author       = {{Grantable}},
  title        = {{The Horne Family Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-horne-family-foundation-morg_4f5b9c9a02844afea5bf72cd0ec9a101},
  note         = {Accessed 2026-10-13. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from The Horne Family Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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