Data / Foundation grants / The Diomedes Foundation
The Diomedes Foundation: 18 grants to organizations, $2.3 million (tax year ended December 2025)
The Diomedes Foundation, a private foundation in Concord, MA, paid 18 grants to organizations totaling $2,257,290 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on May 12, 2026. The largest was $1,517,986 to Boynton Fmaily Fund - Fidelity Charitable in Cincinnati, OH for to fund the recipient's operating budget.
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- EIN
- 461451480
- Based in
- Concord, MA
- Assets
- $930,551
- Grants paid
- $2,257,290
- Tax year ended
- December 2025
Grants paid, tax year ended December 2025
From the Form 990-PF filed May 12, 2026, IRS object ID 202641329349104589. It reported $2,257,290 in grants paid; 18 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Boynton Fmaily Fund - Fidelity Charitable | Cincinnati, OH | To fund the recipient's operating budget | $1,517,986 | apps.irs.gov | |
| Harvard University | Cambridge, MA | To fund the recipient's operating budget | $292,000 | apps.irs.gov | |
| Emerson Health | Concord, MA | To fund the recipient's operating budget | $130,350 | apps.irs.gov | |
| Middlesex School | Concord, MA | To fund the recipient's operating budget | Education | $95,000 | apps.irs.gov |
| Renaissance Charitable Foundation Inc - Theodora Park Fund | Indianapolis, IN | To fund the recipient's operating budget | $50,000 | apps.irs.gov | |
| Concord Carlisle Foundation | Concord, MA | To fund the recipient's operating budget | Philanthropy, voluntarism and grantmaking foundations | $26,100 | apps.irs.gov |
| Island Housing Trust | Mount Desert, ME | To fund the recipient's operating budget | Housing and shelter | $25,000 | apps.irs.gov |
| California Community Foundation | Los Angeles, CA | To fund the recipient's operating budget | Philanthropy, voluntarism and grantmaking foundations | $22,500 | apps.irs.gov |
| Mount Desert Nursing Association | Northeast Harbor, ME | To fund the recipient's operating budget | Health care | $15,000 | apps.irs.gov |
| The Umbrella Arts Center | Concord, MA | To fund the recipient's operating budget | $15,000 | apps.irs.gov | |
| The Trustees of Hamilton College | Clinton, NY | To fund the recipient's operating budget | Education | $13,000 | apps.irs.gov |
| St Paul's School | Concord, NH | To fund the recipient's operating budget | $10,000 | apps.irs.gov | |
| The Concord Bridge | Concord, MA | To fund the recipient's operating budget | $10,000 | apps.irs.gov | |
| Thoreau's Backyard | Concord, MA | To fund the recipient's operating budget | $10,000 | apps.irs.gov | |
| Ubuntu Global Connections | Concord, MA | To fund the recipient's operating budget | International, foreign affairs and national security | $10,000 | apps.irs.gov |
| Concord Free Public Library | Concord, MA | To fund the recipient's operating budget | Education | $8,354 | apps.irs.gov |
| The Robbins House | Concord, MA | To fund the recipient's operating budget | Arts, culture and humanities | $5,000 | apps.irs.gov |
| The Neighborhood House | Northeast Harbor, ME | To fund the recipient's operating budget | $2,000 | apps.irs.gov |
Grants paid, tax year ended December 2024
From the Form 990-PF filed March 3, 2025, IRS object ID 202540629349100329. It reported $360,500 in grants paid; 14 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Emerson Health Foundation | Concord, MA | Charitable | $115,000 | apps.irs.gov | |
| Northeast Harbor Sailing School | Northeast Harbor, ME | Charitable | Recreation and sports | $50,000 | apps.irs.gov |
| Trustees of Hamilton College | Clinton, NY | Charitable | Education | $35,000 | apps.irs.gov |
| Concord250 | Concord, MA | Charitable | Arts, culture and humanities | $25,000 | apps.irs.gov |
| Harvard Varsity Club Inc | Boston, MA | Charitable | Education | $25,000 | apps.irs.gov |
| Island Housing Trust | Vineyard Haven, MA | Charitable | $25,000 | apps.irs.gov | |
| Concord Free Public Library Corp | Concord, MA | Charitable | Education | $20,000 | apps.irs.gov |
| California Community Foundation | Los Angeles, CA | Charitable | Philanthropy, voluntarism and grantmaking foundations | $15,500 | apps.irs.gov |
| Axium Education | Zithulele, SF | Charitable | $10,000 | apps.irs.gov | |
| Concord Center for the Visual Arts | Concord, MA | Charitable | $10,000 | apps.irs.gov | |
| St Paul's School | Concord, NH | Charitable | $10,000 | apps.irs.gov | |
| The Childrens Room | Arlington, MA | Charitable | $10,000 | apps.irs.gov | |
| Deaconess Abundant Life Communities | Concord, MA | Charitable | $5,000 | apps.irs.gov | |
| The Neighborhood House | San Diego, CA | Charitable | $5,000 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Education | $196,354 |
| Philanthropy, voluntarism and grantmaking foundations | $64,100 |
| Recreation and sports | $50,000 |
| Arts, culture and humanities | $30,000 |
| Housing and shelter | $25,000 |
| Health care | $15,000 |
| International, foreign affairs and national security | $10,000 |
States funded
| Recipient state | Granted |
|---|---|
| Ohio | $1,517,986 |
| Massachusetts | $836,804 |
| Maine | $92,000 |
| Indiana | $50,000 |
| New York | $48,000 |
| California | $43,000 |
| New Hampshire | $20,000 |
Also on SpecStream
- Who funds education in Massachusetts
- Who funds recreation and sports in Maine
- Who funds education in New York
- Who funds philanthropy, voluntarism and grantmaking foundations in California
- Who funds arts, culture and humanities in Massachusetts
- Who funds philanthropy, voluntarism and grantmaking foundations in Massachusetts
Updated May 12, 2026. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.