Mattaini Family Foundation
Accepts applications
Mattaini Family Foundation is a private foundation in Bellevue, Washington. In tax year 2025 it gave $758,000 in 12 grants; the typical grant was $35,500 and the largest $300,000. It accepts applications; its filing gives the instructions below.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$758,000
- Number of grants12
- Typical grant$35,500
- Largest grant$300,000
- Assets$0
- New grantees25%
Giving in 2025 was up from $119,500 the year before.
25% of its 2025 grantees had not received a grant from it the year before, a mix of repeat and new grantees.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $108,500 | 13 | $673,396 |
| 2024 | $119,500 | 13 | $664,843 |
| 2025 | $758,000 | 12 | $0 |
How to apply
| Contact | Barry Mattaini 91 Cascade Key, Bellevue, WA 98006 |
|---|---|
| Phone or email | (206) 920-6657 |
| What to submit | Letter will be accepted detailng charitable work of organization. |
| Deadlines | 0630 |
| Restrictions | The foundation limits benefits to beneficiares that are public charities which have received a letter of exemption under sectios 501(c)(3) of the code. The foundation will contemplate grants to other organizations & individuals upon implementation of expenditure responsibility. |
What Mattaini Family Foundation funds
Where it gives
Its grants went to recipients in 3 states, the most to Washington.
| State | Grants | Amount |
|---|---|---|
| Washington | 10 | $653,000 |
| Tennessee | 1 | $100,000 |
| California | 1 | $5,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Virginia Mason Foundation | Same | $300,000 |
| Alzheimer's Assoc | 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 contributons from the taxpayer are tax exempt organizations qualified under section 501(c)(3) of the code. | $100,000 |
| St Judes Research Hospital | Same | $100,000 |
| Fred Hutchinson Cancer Research | Same | $100,000 |
| Individual | Same | $40,000 |
| Union Gospel Mission | Same | $36,000 |
| Individual | Same | $35,000 |
| Individual | Same | $25,000 |
| Individual | Same | $10,000 |
| Eisenhower Medical Foundation | Same | $5,000 |
| UW Medicine Memory Brain Wellness | Same | $5,000 |
| UW Foundation | Same | $2,000 |
Officers and trustees
- Barry Mattaini
- Nancy Mattaini
Questions people ask
Does Mattaini Family Foundation accept grant applications?
Yes. Its latest IRS filing says it accepts applications, with this on deadlines: 0630.
How much does Mattaini Family Foundation give?
$758,000 in tax year 2025, across 12 grants, with a typical grant of $35,500.
Who runs Mattaini Family Foundation?
Its 2025 filing lists Barry Mattaini (President) and Nancy Mattaini (Vice President).
What does Mattaini Family Foundation fund?
Based on its grants, mainly health, science and research and faith communities.