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.

Key facts about Ironwood Foundation

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

EIN
81-0875655
Latest 990 filing
Form 990-PF, 2024
Annual giving (2024)
$72,500
Grants made (2024)
3
Average grant
$24,167
Median grant
$10,000
Total assets
$132,786
Primary geography
Massachusetts (83% of itemized 2024 grant dollars)

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

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$133K

-35.6% YoY

Annual Giving

$73K

-77.3% YoY

Grant Count

3

-50.0% YoY

Avg Grant Size

$24K

-54.7% YoY

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.

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.

Your AI grants department

Ready to take the next step with Ironwood Foundation?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

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

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.

Grant Insights

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%).

Giving History

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

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$100K$200K$300K$400K2020 2021 2022 2023 2024
Metric202420232022
Total Assets$132,786$206,214$535,195
Revenue$10$3$6
Expenses$80,378$328,218$169,813
Qualifying Distributions$72,500$320,000$160,000
Net Investment Income$10$3$6
Distributable Amount$8,719$14,849$31,212

Data update history

When this profile's IRS filing data changed on Grantable

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

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.

Your AI grants department

Here's the math on researching Ironwood Foundation by hand.

Explore Open Grants

Browse active grant opportunities in Ironwood Foundation's focus areas in our free grants database

Similar Funders

Funders that support many of the same organizations

IBM International Foundation

Armonk, NY

The IBM International Foundation funds education and workforce programs that build 21st-century and technology job skills, including initiatives for underserved students and job seekers. Its 2024 grants ranged from $10,000 to $8.48 million, with a median of $100,000, and went to organizations across several U.S. states, especially Delaware and Massachusetts. It funds only preselected organizations and does not accept unsolicited requests.

Assets

$357.7M

Grants

16

Total Given

$11.7M

The Flatley Foundation

Braintree, MA

The Flatley Foundation supports in-house cystic fibrosis research and a broad range of health, human-services, education, and community organizations. Its 2024 grants ranged from $1,000 to $5 million, with a median of $100,000; most funding went to Massachusetts, with additional grants in Connecticut, California, Georgia, and Washington, D.C. It funds only preselected charities and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$691.0M

Grants

159

Total Given

$32.8M

Saeman Family Foundation a Charitable Trust

Denver, CO

The Saeman Family Foundation supports educational, health-care, and charitable organizations, with 2025 grants ranging from $1,000 to $312,373 and a median of $25,000. Its 2025 grants went to organizations in Colorado, Pennsylvania, California, Iowa, and Washington, D.C. It funds only preselected organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$5.4M

Grants

15

Total Given

$1.1M

The Tito and Sandra Tiberti Foundation

Las Vegas, NV

The Tito and Sandra Tiberti Foundation funds arts, education, health, and public-policy organizations, with most of its giving in Nevada. In 2025, grants ranged from $1,000 to $63,500, with a median of $3,250. It gives only to preselected organizations and does not accept unsolicited requests.

Assets

$2.2M

Grants

46

Total Given

$341K

Fritz B Burns Foundation

Woodland Hills, CA

The foundation supports schools and colleges, religious organizations, health organizations, and other charities, primarily in California, with some giving in Utah. Its 2025 grants ranged from $25,000 to $3 million, with a median of $250,000. It accepts requests by letter from eligible 501(c)(3) charities that are not private foundations; the stated deadline is September 30.

Assets

$204.1M

Grants

34

Total Given

$13.8M

Helen & Robert Cahill Foundation Inc

New York, NY

The foundation supports charitable, educational, and community organizations; recent grants ranged from $1,000 to $15,000, with a median of $5,000. Its recent giving was concentrated in Washington, DC, and New York, with smaller grants in Maryland, Connecticut, and California. It gives only to preselected organizations and does not accept unsolicited requests.

Assets

$845K

Grants

13

Total Given

$71K

KLM Foundation

Los Angeles, CA

KLM Foundation supports schools, universities, community groups, and other charitable organizations, with most of its grant funding going to California. In 2024, it made 253 grants ranging from $250 to $1 million, with a median grant of $5,000. It gives only to preselected organizations and does not accept unsolicited requests.

Assets

$113.9M

Grants

253

Total Given

$5.1M

Carrie Estelle Doheny Foundation

Los Angeles, CA

The foundation funds Greater Los Angeles nonprofits in social welfare, health and wellness, education, and religion, with a focus guided by Catholic values. In 2024, grants ranged from $196 to $425,000, with a median of $25,000. It accepts applications through its website from eligible nonprofits; organizations may apply once per year.

Assets

$215.3M

Grants

263

Total Given

$9.2M

Boston Foundation Inc

Boston, MA

The Boston Foundation funds nonprofits and community initiatives focused on equity and opportunity, including child well-being, economic opportunity, community wealth, and community leadership, primarily in Greater Boston. Its 2025 grants had a median of $25,000, while specific programs offer amounts such as $50,000; whether it accepts unsolicited requests is not stated.

Assets

$2.1B

Grants

2,375

Total Given

$228.4M

Eastern Bank Foundation

Wakefield, MA

Eastern Bank Foundation supports economic inclusion and mobility, including small businesses, early childhood development, affordable housing, and workforce development. Its 2025 grants ranged from $50 to $2,002,500, with a median of $2,500, primarily in Massachusetts and also in New Hampshire and Rhode Island. It accepts online applications and does not limit giving to preselected organizations.

Assets

$266.7M

Grants

1,786

Total Given

$19.0M

Barr Foundation

Boston, MA

The Barr Foundation funds arts and creativity, climate, education, and New England’s social sector, primarily through long-term support for organizations in New England. Its 2024 grants ranged from $100 to $3.275 million, with a median of $80,000. Its filing says it accepts only requests from preselected organizations and does not accept unsolicited requests, though its website describes program-page inquiries and occasional open calls.

Assets

$1.9B

Grants

903

Total Given

$123.2M

More Funders in Massachusetts

Ironwood Foundation down — hundreds of funders to go?

Want AI to do this for you?