Private Foundation

THE DIOMEDES FOUNDATION C/O JOHN W BOYNTON IV FIREHOUSE CAPITAL

Based in CONCORD, MA, THE DIOMEDES FOUNDATION C/O JOHN W BOYNTON IV FIREHOUSE CAPITAL operates as a Private Foundation. The organization reported $192K in revenue, $2.3M in expenses, $941K in total assets for fiscal year 2025. Imperigo tracks 128 reported grants from this foundation totaling approximately $5.1M.

EIN: 461451480 CONCORD, MA Private Grantmaking Foundations NTEE: T20 Latest filing: 2025
Total Revenue$192K
Total Expenses$2.3M
Total Assets$941K
Grants Given128
Grant Total$5.1M
Filing Years2021–2025

Sample Grants Given

BOYNTON FMAILY FUND - FIDELITY CHARITABLE
CINCINNATI, OH · 2025
TO FUND THE RECIPIENT'S OPERATING BUDGET
$1,517,986
HARVARD UNIVERSITY
CAMBRIDGE, MA · 2025
TO FUND THE RECIPIENT'S OPERATING BUDGET
$292,000
EMERSON HEALTH
CONCORD, MA · 2025
TO FUND THE RECIPIENT'S OPERATING BUDGET
$130,350
MIDDLESEX SCHOOL
CONCORD, MA · 2025
TO FUND THE RECIPIENT'S OPERATING BUDGET
$95,000
RENAISSANCE CHARITABLE FOUNDATION INC - THEODORA PARK FUND
INDIANAPOLIS, IN · 2025
TO FUND THE RECIPIENT'S OPERATING BUDGET
$50,000

Showing up to 5 of 128 total records — full history available with membership.

Officers & Directors

TRUSTEE James E Gowen Ii
TRUSTEE Johnanna N Boynton
TRUSTEE John W Boynton Iv

Officer compensation and complete director data available with membership.

Top Grant Purposes

CHARITABLE
$2,813,287 110 grants
TO FUND THE RECIPIENT'S OPERATING BUDGET
$2,257,290 18 grants

Financial Trends

Year Revenue Expenses Assets
2025 $192K $2.3M $941K
2024 $328K $367K $2.1M
2023 $176K $374K $2.1M
2022 $72K $334K $2.3M
2021 $372K $504K $2.6M

Between 2021 and 2025, reported annual revenue declined from $372K to $192K (-48%), with total assets most recently reported at $941K.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in CA, CO, DC, FL, IN, MA, and 4 other states.

CACODCFLINMAMENHNYOH

Full geographic grant map with state-by-state breakdown available with membership.

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