Private Grantmaking FoundationAssets: $1M – $4.9M

Mattaini Family Foundation

Location
Bellevue, WA
EIN
91-1938648

How to apply, from its 2025 IRS return

How to ask
Letter will be accepted detailng charitable work of organization.
Deadlines
0630
Limits on who can apply
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.
Grants paid in 2025
$758,000, to organizations

This is what the foundation told the IRS on Form 990-PF. It isn’t a confirmed open grant round, and details may have changed, so contact the foundation before applying. Its mailing address is on the full return: see it on ProPublica’s Nonprofit Explorer.

No open grants listed from this funder right now

We don’t know of a website for it yet, so its IRS return above is the best guide.

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