Funders › MA › The Diomedes Foundation C/O John W Boynton IV Firehouse Capital › 2023
Grants paid by The Diomedes Foundation C/O John W Boynton IV Firehouse Capital, tax year 2023
EIN 46-1451480 · Concord, MA · Form 990-PF, Part XV · NTEE T20
In tax year 2023, The Diomedes Foundation C/O John W Boynton IV Firehouse Capital (EIN 46-1451480) reported 13 grants paid totaling $367,500. Dataset version 2026.09.0, built 2026-09-03.
Every grant, 2023
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2023 | Emerson Hospital Concord, MA | B | $110,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Harvard College Fund Boston, MA | U | $100,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Northeast Harbor Sailing School Northeast Harbor, ME | B | $50,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Harvard Varsity Club Inc Boston, MA | B | $25,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | California Community Foundation Los Angeles, CA | B | $15,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Mt Desert Community Development Corp Northeast Harbor, ME | U | $10,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Middlesex School Concord, MA | B | $10,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Trustees of Hamilton College Clinton, NY | B | $10,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Carnegie Initiative Lexington, MA | U | $10,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | American Promise Inc Concord, MA | B | $10,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | The Childrens Room Arlington, MA | D | $10,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Umbrella Arts Center Concord, MA | U | $5,000 | paid | CHARITABLE | 202420739349101207 |
| 2023 | Concord Fee Public Library Corp Concord, MA | D | $2,500 | paid | CHARITABLE | 202420739349101207 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF e-file XML. Dataset version 2026.09.0, built 2026-09-03. All years for this funder.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.