The Arnold Garrison Foundation

Private foundation · Grantmaker Boston, MA EIN: 04-3216929

The Arnold Garrison Foundation is a private foundation, based in Boston, MA. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $5.1M in total assets. In 2025, it awarded 2 grants totaling $135K. Net investment income was $112K.

The Arnold Garrison Foundation at a glance

In short: The Arnold Garrison Foundation gave $135K across 2 grants in 2025 (avg $68K), mostly in New Hampshire. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$135,000
-3.6% vs 2024
Grants made (2025)
2
-75.0% vs 2024
Average grant
$67,500
+285.7% vs 2024
Median grant
$67,500
Total assets
$5,117,742
+5.7% vs 2024
Primary geography
New Hampshire (74% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated September 2026.

Who The Arnold Garrison Foundation funds

How this funder distributes its grants

Top Recipients

Top 2 recipients in 2025

John & Anna Newton Porter Foundation: $100KJohn & Anna Newton PorterFoundation$100KPan Massachusetts Challenge Trust: $35KPan Massachusetts ChallengeTrust$35K

The largest 2025 recipient was John & Anna Newton Porter Foundation ($100K). Together the top 2 received $135K.

Grant Size Distribution

28 grants across all recorded years

23<$50K4$50–100K1$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 23 grants of 28 (82%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

5states

Share of 2025 grant dollars across all 2 itemized grants.

Cities

BostonNeedham HeightsAlton BaySan AntonioConwayMedfieldRindgeDudleyPutneySomervilleSouth Wales

How The Arnold Garrison Foundation gives

  • Giving grew 29% from 2022 to 2025. Method
  • In 2025 it paid out 62% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

From the foundation's IRS Form 990-PF filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$50K$100K$150K$200K11 grants2021 7 grants2022 0 grants2023 8 grants2024 2 grants2025

From 2021 to 2025, annual grant giving ranged from $105K (2022) to $200K (2021). In 2025 it made 2 grants totaling $135K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
John & Anna Newton Porter Foundation Alton Bay, NHGeneral Purpose$100,000
Pan Massachusetts Challenge Trust Needham Heights, MAGeneral Purpose$35,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$5,117,742$135,511$168,436$135,0002$143,757$111,500$232,589
2024$4,842,891$141,428$170,011$140,0008$147,968$119,385$212,923
2023$4,430,908$112,251$27,662——$7,404$92,003$199,679
2022$3,748,646$59,541$135,564$105,0007$112,744$38,165$203,462
2021$4,264,690$353,687$236,785$200,00011—$334,102$188,690

Under IRS private-foundation payout rules, The Arnold Garrison Foundation reported a distributable amount of $233K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

The Arnold Garrison Foundation's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Kristin Abati

    Trustee

    On filings since 2021

    1 hr/week

    No compensation reported

  • Timothy P Garrison

    Trustee

    On filings since 2021

    1 hr/week

    No compensation reported

Former officers (1)
  • Former: John M Cornish (2021) — Trustee

Data from IRS Form 990 filings, 2021–2025. "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 Arnold Garrison Foundation

How much does The Arnold Garrison Foundation give each year?

The Arnold Garrison Foundation gave $135K across 2 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $140K across 8 grants.

How large is The Arnold Garrison Foundation?

The Arnold Garrison Foundation reported $5.1M in total assets on its 2025 IRS Form 990-PF. It paid out $144K in qualifying distributions that year, against a required minimum of $233K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

Where does The Arnold Garrison Foundation operate?

The Arnold Garrison Foundation has awarded grants in Massachusetts, New Hampshire, New York, Texas, Vermont.

What is The Arnold Garrison Foundation's EIN?

The Arnold Garrison Foundation's EIN (Employer Identification Number) is 04-3216929. IRS Form 990 filing data is available on this page for 2021–2025.

Data last updated September 2026. Sourced from IRS Form 990-PF filings.

Data update history

(1)

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2021–2025

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from The Arnold Garrison 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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