Brothers Brook Foundation
At a glance
This funder does not accept unsolicited applications. The foundation chooses the organisations it funds itself.
Key takeaways
- Brothers Brook Foundation says it does not accept unsolicited requests and works by invitation only, so a cold application is not a route to it; approach it only if you already have an invitation.
- If your work fits its themes of poverty and economic mobility, chronic disease treatment, open space, environmental protection or non-partisan policy research, check that fit first.
- Its typical grants fall between $10,000 and $150,000, and half of its grants to organisations across its recent filings were $50,000 or less, so a modest request is a realistic size, although its largest grant was $325,000.
- In its most recent filing, 91% of grant dollars to organisations went to groups it had also funded in one of its two earlier filings, so the foundation leans strongly towards existing relationships.
- No geographic focus is stated, and the filing shows grants mainly in Connecticut, New York, Massachusetts and District of Columbia, so do not treat that as a limit on who may apply.
Overview
Brothers Brook Foundation is a US private foundation based in Denver, CO.
What they fund
Profile derived from the foundation's IRS Form 990-PF filings (TY2025, TY2024, TY2023) and its website, with every statement checked against those sources. Sources read on 7 October 2026.
Priority Areas
The Brothers Brook Foundation supports organisations that fight poverty and promote economic mobility, seek treatments for chronic diseases, preserve open space, protect the environment, and conduct non-partisan policy research. Its stated priorities span economic mobility, health, conservation and public policy, with support directed to organisations working in those fields. The foundation describes its support at the level of organisations, but does not set out further eligibility criteria, a geographic focus or a public route for unsolicited applications. It says it is unable to respond to unsolicited grant applications, so an unsolicited request is not an application route.
Themes
- Poverty and economic mobility
- Chronic disease treatment
- Open space
- Environmental protection
- Non-partisan policy research
Geographic Focus
No geographic focus is stated; the filings show grants mainly in Connecticut, New York, Massachusetts and District of Columbia.
How to apply
The foundation states that it does not accept unsolicited requests.
Application success factors
- Repeat giving: In its TY2025 filing, 91% of its grant dollars to organisations went to organisations it had also funded in its TY2023 or TY2024 filing.
- Grant size: Across its TY2023, TY2024 and TY2025 filings, half of its 162 grants to organisations were $50,000 or less.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2023–2025.
Grant dollars by state
6 other states: 4%
- The largest single recipient received 7% of grant dollars to organisations.
- In tax year 2025, 91% of grant dollars went to organisations Brothers Brook Foundation had funded in earlier filings.
- No grants were paid directly to organisations outside the US.
- 5% of grant dollars went to intermediaries that regrant to other organisations.
Grants
How much do they typically give?
Share of 54 grants in tax year 2025 by size
Median $50,000 (tax year 2025)
The largest grants to organisations in the foundation’s latest filing:
- Fidelity Investments Charitable Gift Fund · Quality of life in local & other communities$275,0002025 tax year
- Nature Conservancy · Create or preserve open space$200,0002025 tax year
- Family Centers · Fight poverty / education$195,0002025 tax year
- Brookings Institution · Non-partisan public policy research$195,0002025 tax year
- Part of the Solution · Fight poverty / education$160,0002025 tax year
- St Lawrence University · Non-partisan public policy research$152,0002025 tax year
- Women in Need · Fight poverty / education$150,0002025 tax year
- Waterside School · Fight poverty / education$150,0002025 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Jeffery H Boyd Jr — Treasurer
- Teresa Boyd — Vice President
- Jeffery Boyd — President
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2023 tax year | $3,867,522 | $3,566,610 | $78,646,554 | Filing for 2023 tax year |
| 2024 tax year | $3,968,444 | $3,492,700 | $90,869,357 | Filing for 2024 tax year |
| 2025 tax year | $4,224,418 | $3,691,000 | $104,195,280 | Filing for 2025 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
Registers and filings
Other sources
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At a glance
Applying to Brothers Brook Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- Denver, CO
- brothersbrook.org
Applying to Brothers Brook Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- Denver, CO
- brothersbrook.org