Funding search · EIN 461451480 · Concord, MA

The Diomedes Foundation

Name: The Diomedes Foundation grants, 2022–2025
Creator: PaperOrbit
License: https://www.irs.gov/charities-non-profits/exempt-organization-public-disclosure-and-availability-requirements

A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.

56
grants reported: $3.3M
total given: 2022–2025
filing years: $15,000
median grant

Based on grants this organization reported to the IRS for tax years 2022–2025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.

What they fund

budget recipient

Full IRS filings ↗How this is built Report an error

Funding pattern

What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.

Top recipients

Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.

Boynton Fmaily Fund - Fidelity Charitable1 grant · $1.5M
Harvard University1 grant · $292,000
Emerson Hospital2 grants · $210,000
Middlesex School3 grants · $136,135
Emerson Health1 grant · $130,350
Emerson Health Foundation1 grant · $115,000
Northeast Harbor Sailing School2 grants · $100,000
Harvard College Fund1 grant · $100,000
President and Fellow of Harvard College1 grant · $75,000
Harvard Varsity Club3 grants · $75,000

Giving over time

$318,985

2022

$367,500

2023

$360,500

2024

$2.3M

2025

Grant history

All 56 reported grants, largest first.

$1.5M
Boynton Fmaily Fund - Fidelity Charitable · Cincinnati, OH · 2025
To fund the recipient's operating budget
$292,000
Harvard University · Cambridge, MA · 2025
To fund the recipient's operating budget
$130,350
Emerson Health · Concord, MA · 2025
To fund the recipient's operating budget
$115,000
Emerson Health Foundation · Concord, MA · 2024
Charitable
$110,000
Emerson Hospital · Concord, MA · 2023
Charitable
$100,000
Harvard College Fund · Boston, MA · 2023
Charitable
$100,000
Emerson Hospital · Concord, MA · 2022
Charitable
$95,000
Middlesex School · Concord, MA · 2025
To fund the recipient's operating budget
$75,000
President and Fellow of Harvard College · Cambridge, MA · 2022
Charitable
$50,000
Renaissance Charitable Foundation Inc - Theodora Park Fund · Indianapolis, IN · 2025
To fund the recipient's operating budget
$50,000
Northeast Harbor Sailing School · Northeast Harbor, ME · 2024
Charitable
$50,000
Northeast Harbor Sailing School · Northeast Harbor, ME · 2023
Charitable
$35,000
Trustees of Hamilton College · Clinton, NY · 2024
Charitable
$31,135
Middlesex School · Concord, MA · 2022
Charitable
$26,100
Concord Carlisle Foundation · Concord, MA · 2025
To fund the recipient's operating budget
$25,000
Island Housing Trust · Mount Desert, ME · 2025
To fund the recipient's operating budget
$25,000
Concord250 · Concord, MA · 2024
Charitable
$25,000
Harvard Varsity Club · Boston, MA · 2024
Charitable
$25,000
Island Housing Trust · Vineyard Haven, MA · 2024
Charitable
$25,000
Harvard Varsity Club · Boston, MA · 2023
Charitable
$25,000
Harvard Varsity Club · Boston, MA · 2022
Charitable
$25,000
Island Housing Trust · Mount Desert, ME · 2022
Charitable
$25,000
Wonmen'S Sport Foundation · New York, NY · 2022
Charitable
$22,500
California Community Foundation · Los Angeles, CA · 2025
To fund the recipient's operating budget
$20,000
Concord Free Public Library Corp · Concord, MA · 2024
Charitable
$15,500
California Community Foundation · Los Angeles, CA · 2024
Charitable
$15,000
Mount Desert Nursing Association · Northeast Harbor, ME · 2025
To fund the recipient's operating budget
$15,000
The Umbrella Arts Center · Concord, MA · 2025
To fund the recipient's operating budget
$15,000
California Community Foundation · Los Angeles, CA · 2023
Charitable
$15,000
California Community Foundation · Los Angeles, CA · 2022
Charitable
$13,000
The Trustees of Hamilton College · Clinton, NY · 2025
To fund the recipient's operating budget
$10,000
St Paul'S School · Concord, NH · 2025
To fund the recipient's operating budget
$10,000
The Concord Bridge · Concord, MA · 2025
To fund the recipient's operating budget
$10,000
Thoreau'S Backyard · Concord, MA · 2025
To fund the recipient's operating budget
$10,000
Ubuntu Global Connections · Concord, MA · 2025
To fund the recipient's operating budget
$10,000
Axium Education · 2024
Charitable
$10,000
Concord Center for the Visual Arts · Concord, MA · 2024
Charitable
$10,000
St Paul'S School · Concord, NH · 2024
Charitable
$10,000
The Childrens Room · Arlington, MA · 2024
Charitable
$10,000
American Promise · Concord, MA · 2023
Charitable
$10,000
Carnegie Initiative · Lexington, MA · 2023
Charitable
$10,000
Middlesex School · Concord, MA · 2023
Charitable
$10,000
Mt Desert Community Development Corp · Northeast Harbor, ME · 2023
Charitable
$10,000
The Childrens Room · Arlington, MA · 2023
Charitable
$10,000
Trustees of Hamilton College · Clinton, NY · 2023
Charitable
$10,000
The Childrens Room · Arlington, MA · 2022
Charitable
$8,354
Concord Free Public Library · Concord, MA · 2025
To fund the recipient's operating budget
$5,000
The Robbins House · Concord, MA · 2025
To fund the recipient's operating budget
$5,000
Deaconess Abundant Life Communities · Concord, MA · 2024
Charitable
$5,000
The Neighborhood House · San Diego, CA · 2024
Charitable
$5,000
Umbrella Arts Center · Concord, MA · 2023
Charitable
$5,000
Positive Coaching Alliance · Okland, CA · 2022
Charitable
$5,000
Ubuntu Global Connections · Concord, MA · 2022
Charitable
$2,850
Sports Museum of Ne · Boston, MA · 2022
Charitable
$2,500
Concord Fee Public Library Corp · Concord, MA · 2023
Charitable
$2,000
The Neighborhood House · Northeast Harbor, ME · 2025
To fund the recipient's operating budget

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Source: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.