Mount Rainier above forested ridges in Washington
Foundation Lookup

Private foundations Sammamish, WAtax years 2024 to 2025

Private foundations in Sammamish, WA

15 private foundations based in Sammamish, WA filed a 990-PF in the last two years. In their latest returns they gave $6.2 million in 131 grants, and 3 say they accept applications.

See which foundations fund work like yours Matching by cause, place and grant size

Foundations with a return in the last two years, each by its latest return (tax years 2024 to 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

Largest givers

By grants paid, latest return
  1. Simperman-Corette FoundationSammamish, WA · tax year 2025 7 grants Accepts applications $2,850,416 giving
  2. The Wren FoundationSammamish, WA · tax year 2025 8 grants Accepts applications $1,893,208 giving
  3. The Horwitz Family Memorial FoundationSammamish, WA · tax year 2024 36 grants Preselected only $954,250 giving
  4. Wright FoundationSammamish, WA · tax year 2025 13 grants Preselected only $266,412 giving
  5. The Kaplita Family FoundationSammamish, WA · tax year 2025 24 grants Preselected only $93,400 giving
  6. Reuben B Robertson FoundationSammamish, WA · tax year 2025 30 grants Accepts applications $52,000 giving
  7. Oosterhof Foundation IncSammamish, WA · tax year 2025 6 grants Preselected only $32,475 giving
  8. Chun Geng FoundationSammamish, WA · tax year 2025 2 grants Preselected only $23,100 giving
  9. One Gives HopeSammamish, WA · tax year 2025 1 grant Preselected only $19,000 giving
  10. Chen & Yanwen FoundationSammamish, WA · tax year 2025 2 grants Preselected only $921 giving
  11. Twim Booster ClubSammamish, WA · tax year 2025 2 grants Preselected only $240 giving

Foundations that accept applications

Largest first

The return gives an application contact and does not check the preselected-only box.

  1. Simperman-Corette FoundationSammamish, WA · tax year 2025 7 grants Accepts applications $2,850,416 giving
  2. The Wren FoundationSammamish, WA · tax year 2025 8 grants Accepts applications $1,893,208 giving
  3. Reuben B Robertson FoundationSammamish, WA · tax year 2025 30 grants Accepts applications $52,000 giving

Giving by cause

Grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education4 foundations $1,485,41687% of the total
  2. International aid3 foundations $74,7504% of the total
  3. Human services3 foundations $30,5502% of the total
  4. Youth development2 foundations $30,0002% of the total
  5. Philanthropy and grantmaking2 foundations $26,5002% of the total
  6. Arts and culture2 foundations $23,0501% of the total
  7. 7 other causes $35,5702% of the total

Most active small givers

Foundations with under $1 million in assets, by the number of grants they listed.

  1. Reuben B Robertson FoundationSammamish, WA · tax year 2025 30 grants Accepts applications $52,000 giving
  2. The Wren FoundationSammamish, WA · tax year 2025 8 grants Accepts applications $1,893,208 giving
  3. Chen & Yanwen FoundationSammamish, WA · tax year 2025 2 grants Preselected only $921 giving
  4. Twim Booster ClubSammamish, WA · tax year 2025 2 grants Preselected only $240 giving
  5. One Gives HopeSammamish, WA · tax year 2025 1 grant Preselected only $19,000 giving