Data / Foundation grants / Thomas O Brown Foundation
Thomas O Brown Foundation: 11 grants to organizations, $261,000 (tax year ended December 2025)
Thomas O Brown Foundation, a private foundation in Warrenville, IL, paid 11 grants to organizations totaling $261,000 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on August 14, 2026. The largest was $60,000 to Glacier National Park Conservancy in Columbia Falls, MT for preservation of park lands.
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- EIN
- 223894171
- Based in
- Warrenville, IL
- Assets
- $6,247,248
- Grants paid
- $261,000
- Tax year ended
- December 2025
Grants paid, tax year ended December 2025
From the Form 990-PF filed August 14, 2026, IRS object ID 202602269349101010. It reported $261,000 in grants paid; 11 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Glacier National Park Conservancy | Columbia Falls, MT | Preservation of park lands | Recreation and sports | $60,000 | apps.irs.gov |
| Grand Teton National Park Foundation | Moose, WY | Park preservation | Philanthropy, voluntarism and grantmaking foundations | $30,000 | apps.irs.gov |
| Greater Yellowstone Coalition | Bozeman, MT | Preservation of land/wildlife | Environment | $30,000 | apps.irs.gov |
| Public Land Alliance | Washington, DC | National parks preservation | $30,000 | apps.irs.gov | |
| Friends of Whitefish Dunes State Park | Sturgeon Bay, WI | Conservation and promotion of whitefish dunes state park. | $25,000 | apps.irs.gov | |
| National Parks Conservation Association | Washington, DC | Preservation of land/wildlife | Environment | $25,000 | apps.irs.gov |
| Palouse Land Trust | Moscow, ID | Land conservation of the palouse region | Environment | $25,000 | apps.irs.gov |
| Rocky Mountain Conservancy | Estes Park, CO | National parks preservation | Recreation and sports | $20,000 | apps.irs.gov |
| Washington's National Park Fund | Seattle, WA | Preservation of mt. rainier, north cascades, and olympic national parks | $10,000 | apps.irs.gov | |
| Tart Trails | Traverse City, MI | Enrich the traverse region by providing a network of trails, bikeways, and pedestrian ways | $5,000 | apps.irs.gov | |
| National Park Foundation | Baltimore, MD | National parks preservation | $1,000 | apps.irs.gov |
Grants paid, tax year ended December 2024
From the Form 990-PF filed May 12, 2025, IRS object ID 202511329349101186. It reported $249,500 in grants paid; 11 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Glacier National Park Conservancy | Columbia Falls, MT | Preservation of park lands | Recreation and sports | $60,000 | apps.irs.gov |
| National Parks Conservation Association | Washington, DC | Preservation of land/wildlife | Environment | $40,000 | apps.irs.gov |
| Grand Teton National Park Foundation | Moose, WY | Park preservation | Philanthropy, voluntarism and grantmaking foundations | $30,000 | apps.irs.gov |
| Greater Yellowstone Coalition | Bozeman, MT | Preservation of land/wildlife | Environment | $30,000 | apps.irs.gov |
| Rocky Mountain Conservancy | Estes Park, CO | National parks preservation | Recreation and sports | $20,000 | apps.irs.gov |
| Washington's National Park Fund | Seattle, WA | Preservation of mt. rainier, north cascades, and olympic national parks | $20,000 | apps.irs.gov | |
| Save the Redwoods League | San Francisco, CA | Protect and conserve redwood trees | Environment | $15,000 | apps.irs.gov |
| Tart Trails | Traverse City, MI | Enrich the traverse region by providing a network of trails, bikeways, and pedestrian ways | $13,500 | apps.irs.gov | |
| Palouse Land Trust | Moscow, ID | Land conservation of the palouse region | Environment | $10,000 | apps.irs.gov |
| Public Land Alliance | Washington, DC | National parks preservation | $10,000 | apps.irs.gov | |
| National Park Foundation | Baltimore, MD | National parks preservation | $1,000 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Environment | $175,000 |
| Recreation and sports | $160,000 |
| Philanthropy, voluntarism and grantmaking foundations | $60,000 |
States funded
| Recipient state | Granted |
|---|---|
| Montana | $180,000 |
| District of Columbia | $105,000 |
| Wyoming | $60,000 |
| Colorado | $40,000 |
| Idaho | $35,000 |
| Washington | $30,000 |
| Wisconsin | $25,000 |
| Michigan | $18,500 |
Also on SpecStream
- Who funds recreation and sports in Montana
- Who funds environment in District of Columbia
- Who funds philanthropy, voluntarism and grantmaking foundations in Wyoming
- Who funds environment in Montana
- Who funds recreation and sports in Colorado
- Who funds environment in Idaho
Updated August 14, 2026. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.