Illinois · Private foundation
Thomas O Brown Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
- $261k
- Granted FY2025(still arriving)
- 11
- Grants FY2025
- 11
- Organizations funded FY2024
- 9%
- First-time grantees FY2024
- Median grant, FY2025
- $25,000
- Largest grant, FY2025
- $60,000
- Organizations funded a year
- 11 to 16
- FY2018 to FY2024
- States reached, FY2025
- 9
- Total assets, FY2025
- $5.8M
- Applications
- Preselected organizations only
- Per its most recent filing; check its own site
How open it is to new grantees
In FY2024, 9% of the organizations Thomas O Brown Foundation funded were first-time grantees, receiving 12% of its grant dollars.
New vs renewed · share of each year
In FY2024, 88% of grant dollars renewed an existing relationship; $30k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2025still arriving | 11 | $261k | 9% |
| FY2024 | 11 | $250k | 9% |
| FY2023 | 13 | $263k | 0% |
| FY2022 | 14 | $279k | 7% |
| FY2021 | 12 | $266k | 0% |
| FY2020 | 14 | $287k | 0% |
| FY2019 | 16 | $263k | 13% |
| FY2018 | 14 | $273k | 21% |
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Where its grants go
Grant dollars by states, across the years we hold.
Which US states its grants reach
Top grantees
Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Glacier National Park Conservancy | $530,000 | 9 | 2% |
| National Parks Conservation Association | $240,000 | 9 | 0% |
| Greater Yellowstone Coalition | $236,000 | 9 | 1% |
| Public Lands Alliance | $165,000 | 8 | 4% |
| Palouse Land Trust Inc | $160,000 | 8 | 10% |
| Traverse Area Recreation & Transportation Trails Inc | $147,000 | 9 | 2% |
| Save the Redwoods League | $145,000 | 8 | 0% |
| Latah Trail Foundation Inc | $135,000 | 6 | 72% |
| Rocky Mountain Conservancy | $115,000 | 7 | 0% |
| Palouse-Clearwater Environmental Institute Inc | $76,000 | 4 | 2% |
Show all 19 grantees
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Glacier National Park Conservancy | $530,000 | 9 | 2% |
| National Parks Conservation Association | $240,000 | 9 | 0% |
| Greater Yellowstone Coalition | $236,000 | 9 | 1% |
| Public Lands Alliance | $165,000 | 8 | 4% |
| Palouse Land Trust Inc | $160,000 | 8 | 10% |
| Traverse Area Recreation & Transportation Trails Inc | $147,000 | 9 | 2% |
| Save the Redwoods League | $145,000 | 8 | 0% |
| Latah Trail Foundation Inc | $135,000 | 6 | 72% |
| Rocky Mountain Conservancy | $115,000 | 7 | 0% |
| Palouse-Clearwater Environmental Institute Inc | $76,000 | 4 | 2% |
| Washington's National Park Fund | $72,500 | 8 | 1% |
| Zion Natural History Association | $60,000 | 6 | 0% |
| Grand Teton National Park Foundation | $60,000 | 2 | 0% |
| Parks and Wildlife Foundation of Texas | $35,000 | 2 | 0% |
| The Ridges Sanctuary Inc | $10,000 | 1 | 1% |
| National Park Foundation | $9,000 | 9 | 0% |
| Friends of Whitefish Dunes | $5,500 | 2 | n/a |
| Ecology Project International | $2,000 | 1 | 0% |
| Washington State University Foundation | $1,000 | 1 | n/a |
What it could do for these grantees
Plus 3 recipients with no EIN on record ($198k), not named here.
Where it is load-bearing
Thomas O Brown Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 17 largest grantees; load-bearing ones sit top left.
Tap a dot to name the grantee.
How this is measured
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: National Park Foundation · Shell USA Company Foundation · Raymond James Charitable Endowment Fund · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · National Philanthropic Trust · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
About Thomas O Brown Foundation
- How much does Thomas O Brown Foundation give?
- Thomas O Brown Foundation reported 11 grants totaling $261,000 in its FY2025 IRS filing. It funded between 11 and 16 organizations a year over FY2018 to FY2024.
- What does Thomas O Brown Foundation fund?
- By grant dollars over FY2017 to FY2025, its largest causes are Environment (76%), Recreation & Sports (16%), Human Services (6%).
- Who are Thomas O Brown Foundation's largest grantees?
- By total granted over FY2017 to FY2025: Glacier National Park Conservancy ($530k), National Parks Conservation Association ($240k), Greater Yellowstone Coalition ($236k).
- Does Thomas O Brown Foundation fund new organizations?
- In FY2024, 9% of the organizations it funded were first-time grantees.
- Does Thomas O Brown Foundation accept unsolicited applications?
- Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
- Which funders back the same organizations as Thomas O Brown Foundation?
- Its strongest co-funders, measured against what their size predicts, include National Park Foundation, Shell USA Company Foundation, Raymond James Charitable Endowment Fund.
- Where is Thomas O Brown Foundation based?
- Thomas O Brown Foundation is based in IL.
Play a game based on Thomas O Brown’s filings →