Boynton Fmaily Fund - Fidelity Charitable
CINCINNATI, OH
$1.5MTax year 2025
Grant purpose
To fund the recipient's operating budget
Foundation directory
The Diomedes Foundation C/O John W Boynton IV Firehouse Capital Grants
Private foundation · EIN 46-1451480 · IRS 990-PF filings through tax year 2025
How to apply
This foundation reports on its 990-PF that it only makes contributions to preselected organizations and does not accept unsolicited applications.
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Original filing text
Reported organization name: THE DIOMEDES FOUNDATION C/O JOHN W BOYNTON IV FIREHOUSE CAPITAL
Giving by tax year
Year-level totals across every reported grant in this profile — a summary, not a filter. The awards further down are the largest individual grants across all years, not each year's complete list.
| Tax year | Grants paid | Amount |
|---|---|---|
| 2025 | 18 | $2.3M |
| 2024 | 14 | $360.5K |
Where The Diomedes Foundation C/O John W Boynton IV Firehouse Capital gives
States of grant recipients reported on the foundation's 990-PF filings, by dollars received.
Largest reported grants
Historical awards reported to the IRS. These are examples of past giving, not open opportunities.
Harvard University
CAMBRIDGE, MA
$292KTax year 2025
Grant purpose
To fund the recipient's operating budget
Emerson Health
CONCORD, MA
$130.4KTax year 2025
Grant purpose
To fund the recipient's operating budget
Emerson Health Foundation
CONCORD, MA
$115KTax year 2024
Grant purpose
Charitable
Middlesex School
CONCORD, MA
$95KTax year 2025
Grant purpose
To fund the recipient's operating budget
Showing 5 of the 25 largest grants (32 reported in all).
See all 32 grants from The Diomedes Foundation C/O John W Boynton IV Firehouse Capital: sort and filter by purpose, state and year.
Create free accountAbout this data
Figures are aggregated from The Diomedes Foundation C/O John W Boynton IV Firehouse Capital's IRS Form 990-PF electronic filings (2 filings on file, most recent tax year 2025). Totals reflect grants the foundation reported as paid, and can lag the current year because foundations file annually and often on extension. Source: IRS 990-PF filing on ProPublica. Raw e-file archive (ZIP) — a large IRS yearly archive download.
Other foundations giving in Ohio
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New to this? Start with how to write a grant proposal, section by section. This profile is built from IRS 990-PF filings — read how the directory was assembled, or see what GrantCue does and what it costs.