Ironwood Foundation

Private foundation · Grantmaker Groton, MA EIN: 81-0875655

Ironwood Foundation is a private foundation, based in Groton, MA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $133K in total assets. In 2024, it awarded 3 grants totaling $73K. Net investment income was $10.

Ironwood Foundation at a glance

In short: Ironwood Foundation gave $73K across 3 grants in 2024 (avg $24K), mostly in Massachusetts. Source: 2024 IRS Form 990-PF.

Annual giving (2024)
$72,500
-77.3% vs 2023
Grants made (2024)
3
-50.0% vs 2023
Average grant
$24,167
-54.7% vs 2023
Median grant
$10,000
Total assets
$132,786
-35.6% vs 2023
Primary geography
Massachusetts (83% of itemized 2024 grant dollars)
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated September 2026.

Who Ironwood Foundation funds

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2024

Trivium School: $60KTrivium School$60KThomas Aquinas College: $10KThomas Aquinas College$10KCardinal Kung Academy: $3KCardinal Kung Academy$3K

The largest 2024 recipient was Trivium School ($60K). Together the top 3 received $73K.

Grant Size Distribution

14 grants across all recorded years

7<$50K3$50–100K4$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 7 grants of 14 (50%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

4states

Share of 2024 grant dollars across all 3 itemized grants.

Cities

LancasterLa CrosseSanta PaulaWakefieldBraintreePeabodySouth BostonStamfordWaltham

How Ironwood Foundation gives

  • Giving fell 40% from 2021 to 2024. Method
  • In 2024 it paid out 832% of its IRS minimum distribution (the 5% rule). 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$100K$200K$300K$400K1 grant2020 2 grants2021 2 grants2022 6 grants2023 3 grants2024

From 2020 to 2024, annual grant giving ranged from $15K (2020) to $320K (2023). In 2024 it made 3 grants totaling $73K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Trivium School Lancaster, MASupport the school inteaching a rigorous courseof pre-liberal arts disciplines.$60,000
Thomas Aquinas College Santa Paula, CASupport college in providinga liberal education underthe catholic faith$10,000
Cardinal Kung Academy Stamford, CTSupport college in providinga classical liberal arts educationin the classical catholic faith$2,500
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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
2024$132,786$10$80,378$72,5003$72,500$10$8,719
2023$206,214$3$328,218$320,0006$320,000$3$14,849
2022$535,195$6$169,813$160,0002$160,000$6$31,212
2021$698,321$125,006$129,883$120,0002$120,000$6$30,459
2020$709,917$250,012$25,110$15,0001—$12$23,791

Under IRS private-foundation payout rules, Ironwood Foundation reported a distributable amount of $9K for 2024 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Ironwood Foundation's 2024 filing lists 2 officers; none of the 2 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Gregory M. Guinee

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

  • John J. Guinee

    Trustee

    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 Ironwood Foundation

How much does Ironwood Foundation give each year?

Ironwood Foundation gave $73K across 3 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $320K across 6 grants.

What is Ironwood Foundation's typical grant size?

Ironwood Foundation's median grant in 2024 was $10,000, and its average grant was $24,167, across 3 grants on its 2024 IRS Form 990-PF.

Where does Ironwood Foundation give grants?

Ironwood Foundation gives mostly in Massachusetts: 83% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest state was California (14%).

Does Ironwood Foundation give general operating support?

Not in 2024: none of the 3 grants with a stated purpose on Ironwood Foundation's 2024 IRS Form 990-PF were described as general or operating support.

How large is Ironwood Foundation?

Ironwood Foundation reported $133K in total assets on its 2024 IRS Form 990-PF. It paid out $73K in qualifying distributions that year, against a required minimum of $9K (roughly 5% of its investment assets).

What is Ironwood Foundation's EIN?

Ironwood Foundation's EIN (Employer Identification Number) is 81-0875655. IRS Form 990 filing data is available on this page for 2020–2024.

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 2020–2024

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Cite this profile

Grantable. (2026). Ironwood Foundation funder profile. GrantGraph. Retrieved October 24, 2026, from https://grantable.co/funders/ironwood-foundation-morg_deff9154154040e0a027128911b17334

BibTeX
@misc{grantable_810875655_2026,
  author       = {{Grantable}},
  title        = {{Ironwood Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/ironwood-foundation-morg_deff9154154040e0a027128911b17334},
  note         = {Accessed 2026-10-24. 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 Ironwood 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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