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M S Grumbacher Foundation

Grantmaking foundation in Sebastapol, California · EIN 23-2697348

Grants itemized on the 990
$380KTax year 2025
Grants made
19Tax year 2025
Total assets
$7.5MLatest reported
Latest IRS filing
2025Form 990 / 990-PF

Giving by year

$350K2019
$360K2020
$400K2021
$390K2022
$340K2023
$290K2024
$380K2025

Totals by tax year, rounded to two significant figures. Years without a reported total show the sum of grants itemized on the filing.

Top recipients

RecipientAmountTax year
Education Through Music La$93K2025
Big City Mountaineers$88K2025
Scaling Student Success$45K2025
Homeboy Industries$25K2025
Common Sense Media$15K2025

Amounts are rounded. The full grantee list (19 grants in 2025) is available with a free account.

See the full profile. All grants with amounts and years, board and officers, contact details, giving patterns and your organization's fit score are available with a free GrantAuthority account.

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Source: IRS Form 990 and 990-PF filings, tax year 2025. Also see this organization on ProPublica Nonprofit Explorer.