Mount Rainier above forested ridges in Washington

Form 990-PFTax year 2025EIN 91-1307405

The Edgebrook Foundation

A private foundation in Seattle, WA. Its return for tax year 2025 lists 3 grants and $300,000 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $300,000

    Grants listed
    3
    Assets, end of year
    $1,515,691
  • Tax year 2024

    $380,000

    Grants listed
    2
    Assets, end of year
    $1,739,624
  • Tax year 2023

    $380,000

    Grants listed
    2
    Assets, end of year
    $1,933,807
  • Tax year 2022

    $360,000

    Grants listed
    1
    Assets, end of year
    $2,261,147
  • Tax year 2021

    $360,000

    Grants listed
    1
    Assets, end of year
    $2,556,820
  • Tax year 2020

    $360,000

    Grants listed
    1
    Assets, end of year
    $2,738,814
  • Tax year 2019

    $360,000

    Grants listed
    1
    Assets, end of year
    $3,116,354
  • Tax year 2018

    $535,500

    Grants listed
    5
    Assets, end of year
    $3,394,596

Grants paid in 2025

3 grants, largest first

As listed on the return.

  1. CrossmentoringNarbareth, PA

    To support charitable activities

    $180,000
  2. Maidstone Foundation IncNew York, NY

    To support charitable activities

    $90,000
  3. Wetlands InstituteStone Harbor, NJ

    To support charitable activities

    $30,000

Where the money goes

By State

Grants to organizations with a US address, latest year.

  1. Pennsylvania1 grant $180,000
  2. New York1 grant $90,000
  3. New Jersey1 grant $30,000

Officers, directors and trustees

3 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Jon TullisPRESIDENT Hours 1Pay $0
  • Mary Jo BowmanSECRETARY Hours 1Pay $0
  • Thomas BurnhamTREASURER Hours 1Pay $0

The return

More foundations

Other foundations in Washington

  1. R B and Ruth H Dunn Charitable FoundationKenmore, WA 1 grant Preselected only $300,000 giving
  2. William & Pamela Ayer FoundationBellevue, WA 1 grant Preselected only $300,000 giving
  3. The Trudy Scammon FoundationBattle Ground, WA 11 grants Preselected only $300,000 giving
  4. Davidson Family FoundationSpokane, WA 4 grants Preselected only $300,000 giving
  5. William H Cowles FoundationSpokane, WA 1 grant Preselected only $300,000 giving