Funding search · EIN 911938648 · Bellevue, WA
Mattaini Family 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.
- 48
- grants reported
- $1.1M
- total given
- 2022–2025
- filing years
- $7,500
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
Full IRS filings ↗How this is builtReport an error
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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Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Virginia Mason Foundation4 grants · $415,000
- Alzheimer'S Assoc4 grants · $170,000
- St Judes Research Hospital4 grants · $147,500
- Fred Hutchinson Cancer Research4 grants · $122,500
- Salvation Army4 grants · $57,500
- Sound Generations3 grants · $50,000
- Union Gospel Mission3 grants · $48,500
- Northwest Harvest3 grants · $32,500
- Medic One4 grants · $32,500
- Eisenhower Medical Foundation4 grants · $17,500
Giving over time
Grant history
All 48 reported grants, largest first.
- $300,000
Virginia Mason Foundation · Seattle, WA · 2025
Same
- $100,000
Alzheimer'S Assoc · Seattle, WA · 2025
To support general charitable activities carried on by each charitable organization such as religious, scientific, literary, and educational activities. All charitable organizations who receive grants and/or contributon… read allTo support general charitable activities carried on by each charitable organization such as religious, scientific, literary, and educational activities. All charitable organizations who receive grants and/or contributons from the taxpayer are tax exempt organizations qualified under section 501(c)(3) of the code. less
- $100,000
Fred Hutchinson Cancer Research · Seattle, WA · 2025
Same
- $100,000
St Judes Research Hospital · Memphis, TN · 2025
Same
- $75,000
Virginia Mason Foundation · Seattle, WA · 2022
Same
- $40,000
Sound Generations · Seattle, WA · 2025
Same
- $36,000
Union Gospel Mission · Seattle, WA · 2025
Same
- $35,000
Salvation Army · Seattle, WA · 2025
Same
- $25,000
Northwest Harvest · Seattle, WA · 2025
Same
- $25,000
Alzheimer'S Assoc · Seattle, WA · 2024
To support general charitable activities carried on by each charitable organization such as religious, scientific, literary, and educational activities. All charitable organizations who receive grants and/or contributon… read allTo support general charitable activities carried on by each charitable organization such as religious, scientific, literary, and educational activities. All charitable organizations who receive grants and/or contributons from the taxpayer are tax exempt organizations qualified under section 501(c)(3) of the code. less
- $25,000
Alzheimer'S Assoc · Seattle, WA · 2023
To support general charitable activities carried on by each charitable organization such as religious, scientific, literary, and educational activities. All charitable organizations who receive grants and/or contributon… read allTo support general charitable activities carried on by each charitable organization such as religious, scientific, literary, and educational activities. All charitable organizations who receive grants and/or contributons from the taxpayer are tax exempt organizations qualified under section 501(c)(3) of the code. less
- $25,000
Virginia Mason Foundation · Seattle, WA · 2023
Same
- $20,000
St Judes Research Hospital · Memphis, TN · 2024
Same
- $20,000
Alzheimer'S Assoc · Seattle, WA · 2022
To support general charitable activities carried on by each charitable organization such as religious, scientific, literary, and educational activities. All charitable organizations who receive grants and/or contributon… read allTo support general charitable activities carried on by each charitable organization such as religious, scientific, literary, and educational activities. All charitable organizations who receive grants and/or contributons from the taxpayer are tax exempt organizations qualified under section 501(c)(3) of the code. less
- $15,000
Virginia Mason Foundation · Seattle, WA · 2024
Same
- $15,000
St Judes Research Hospital · Memphis, TN · 2023
Same
- $12,500
St Judes Research Hospital · Memphis, TN · 2022
Same
- $10,000
Medic One · Seattle, WA · 2025
Same
- $10,000
Fred Hutchinson Cancer Research · Seattle, WA · 2024
Same
- $10,000
Medic One · Seattle, WA · 2024
Same
- $10,000
Salvation Army · Seattle, WA · 2024
Same
- $7,500
Union Gospel Mission · Seattle, WA · 2024
Same
- $7,500
Fred Hutchinson Cancer Research · Seattle, WA · 2023
Same
- $7,500
Medic One · Seattle, WA · 2023
Same
- $7,500
Salvation Army · Seattle, WA · 2023
Same
- $5,000
Eisenhower Medical Foundation · Rancho Mirage, CA · 2025
Same
- $5,000
Uw Medicine Memory Brain Wellness · Seattle, WA · 2025
Same
- $5,000
Eisenhower Medical Foundation · Rancho Mirage, CA · 2024
Same
- $5,000
Northwest Harvest · Seattle, WA · 2024
Same
- $5,000
Sound Generations · Seattle, WA · 2024
Same
- $5,000
Eisenhower Medical Foundation · Rancho Mirage, CA · 2023
Same
- $5,000
Sound Generations · Seattle, WA · 2023
Same
- $5,000
Union Gospel Mission · Seattle, WA · 2023
Same
- $5,000
Fred Hutchinson Cancer Research · Seattle, WA · 2022
Same
- $5,000
Medic One · Seattle, WA · 2022
Same
- $5,000
Salvation Army · Seattle, WA · 2022
Same
- $3,000
Ps Pet Food Bank · Tacoma, WA · 2024
Same
- $2,500
Veterans of Foreign Wars · Milford, NH · 2024
Same
- $2,500
Northwest Harvest · Seattle, WA · 2023
Same
- $2,500
Eisenhower Medical Foundation · Rancho Mirage, CA · 2022
Same
- $2,000
Uw Foundation · Seattle, WA · 2025
Same
- $1,500
Uso · Washington, DC · 2024
Same
- $1,500
Ronald McDonald House Charities · Seattle, WA · 2023
Same
- $1,000
Uso · Washington, DC · 2023
Same
- $1,000
Veterans of Foreign Wars · Milford, NH · 2023
Same
- $1,000
Boys and Girls Club of Coachella Va · Palm Desert, CA · 2022
Same
- $1,000
Ronald McDonald House Charities · Seattle, WA · 2022
Same
- $250
Disabled Vets · Seattle, WA · 2022
Same
Who else funds this kind of work
Same state
- Bill & Melinda Gates Foundation13,441 grants · $18.24B
- Pivotal Philanthropies Foundation202 grants · $534.9M
Similar purposes
- The John Lazarich Foundation68 grants · $1.5M
- Alexander Charitable Foundationinc216 grants · $3.0M
- Keyes Foundation72 grants · $5.9M
Similar grant size
- The US Charitable Gift Trust12,013 grants · $406.6M
- Paypal Charitable Giving Fund32,081 grants · $1.40B
- Seattle Foundation14,012 grants · $457.3M
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: 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.

