Funding search · EIN 223894171 · Warrenville, IL

Thomas O Brown Foundation

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

38
grants reported
$791,000
total given
2022–2024
filing years
$17,500
median grant

Based on grants this organization reported to the IRS for tax years 20222024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.

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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.

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Grant history

All 38 reported grants, largest first.

  • $60,000

    Glacier National Park Conservancy · Columbia Falls, MT · 2024

    Preservation of park lands

  • $50,000

    Glacier National Park Conservancy · Columbia Falls, MT · 2023

    Preservation of park lands

  • $50,000

    Glacier National Park Conservancy · Columbia Falls, MT · 2022

    Preservation of park lands

  • $40,000

    National Parks Conservation Association · Washington, DC · 2024

    Preservation of land/wildlife

  • $30,000

    Grand Teton National Park Foundation · Moose, WY · 2024

    Park preservation

  • $30,000

    Greater Yellowstone Coalition · Bozeman, MT · 2024

    Preservation of land/wildlife

  • $30,000

    Greater Yellowstone Coalition · Bozeman, MT · 2023

    Preservation of land/wildlife

  • $30,000

    Palouse Land Trust · Moscow, ID · 2023

    Land conservation of the palouse region

  • $30,000

    Greater Yellowstone Coalition · Bozeman, MT · 2022

    Preservation of land/wildlife

  • $26,500

    Tart Trails · Traverse City, MI · 2023

    Enrich the traverse region by providing a network of trails, bikeways, and pedestrian ways

  • $25,000

    Grand Teton Nat Park Fdn · Moose, WY · 2023

    Park preservation

  • $25,000

    National Parks Conservation Assn · Washington, DC · 2023

    Preservation of land/wildlife

  • $25,000

    Grand Teton Nat Park Fdn · Moose, WY · 2022

    Park preservation

  • $25,000

    National Parks Conservation Assn · Washington, DC · 2022

    Preservation of land/wildlife

  • $25,000

    Public Land Alliance · Washington, DC · 2022

    National parks preservation

  • $20,000

    Rocky Mountain Conservancy · Estes Park, CO · 2024

    National parks preservation

  • $20,000

    Washington'S National Park Fund · Seattle, WA · 2024

    Preservation of mt. Rainier, north cascades, and olympic national parks

  • $20,000

    Tart Trails · Traverse City, MI · 2022

    Enrich the traverse region by providing a network of trails, bikeways, and pedestrian ways

  • $20,000

    Texas Parks and Wildlife Foundation · Dallas, TX · 2022

    National parks preservation

  • $15,000

    Save the Redwoods League · San Francisco, CA · 2024

    Protect and conserve redwood trees

  • $15,000

    Rocky Mountain Conservancy · Estes Park, CO · 2023

    National parks preservation

  • $15,000

    Save the Redwoods League · San Francisco, CA · 2023

    Protect and conserve redwood trees

  • $15,000

    Texas Parks and Wildlife Foundation · Dallas, TX · 2023

    National parks preservation

  • $15,000

    Palouse Land Trust · Moscow, ID · 2022

    Land conservation of the palouse region

  • $15,000

    Rocky Mountain Conservancy · Estes Park, CO · 2022

    National parks preservation

  • $15,000

    Save the Redwoods League · San Francisco, CA · 2022

    Protect and conserve redwood trees

  • $15,000

    Zion National Park Forever Project · Springdale, UT · 2022

    To promote enviromental conservation

  • $13,500

    Tart Trails · Traverse City, MI · 2024

    Enrich the traverse region by providing a network of trails, bikeways, and pedestrian ways

  • $13,000

    Washington'S National Park Fund · Seattle, WA · 2022

    Preservation of mt. Rainier, north cascades, and olympic national parks

  • $10,000

    Palouse Land Trust · Moscow, ID · 2024

    Land conservation of the palouse region

  • $10,000

    Public Land Alliance · Washington, DC · 2024

    National parks preservation

  • $10,000

    Public Land Alliance · Washington, DC · 2023

    National parks preservation

  • $10,000

    Washington'S National Park Fund · Seattle, WA · 2023

    Preservation of mt. Rainier, north cascades, and olympic national parks

  • $10,000

    Zion National Park Forever Project · Springdale, UT · 2023

    To promote enviromental conservation

  • $10,000

    Latah Trail Foundation · Moscow, ID · 2022

    Promote safe non-motorized transportation in latah county

  • $1,000

    National Park Foundation · Baltimore, MD · 2024

    National parks preservation

  • $1,000

    National Park Foundation · Washington, DC · 2023

    National parks preservation

  • $1,000

    National Park Foundation · Washington, DC · 2022

    National parks preservation

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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.