The California State Capitol

Form 990-PFTax year 2025EIN 81-0740828

The Shinemaker Foundation

A private foundation in Mill Valley, CA. Its return for tax year 2025 lists 17 grants and $444,838 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact
Richard Solimine
10 E Blithedale Ave
Mill Valley, CA 94941
(415) 384-8696
[email protected]
Form and materials
No specific form is required at this time
Deadlines
No specific deadlines at this time
Restrictions
None at this time

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $444,838

    Grants listed
    17
    Assets, end of year
    $3,132,838
  • Tax year 2024

    $340,345

    Grants listed
    13
    Assets, end of year
    $3,687,708
  • Tax year 2023

    $409,130

    Grants listed
    16
    Assets, end of year
    $3,811,444
  • Tax year 2022

    $315,334

    Grants listed
    17
    Assets, end of year
    $3,217,578
  • Tax year 2021

    $336,505

    Grants listed
    21
    Assets, end of year
    $3,353,820
  • Tax year 2020

    $342,485

    Grants listed
    17
    Assets, end of year
    $3,472,307
  • Tax year 2019

    $384,128

    Grants listed
    17
    Assets, end of year
    $3,570,333
  • Tax year 2018

    $311,221

    Grants listed
    24
    Assets, end of year
    $3,942,563

Grants paid in 2025

17 grants, largest first

As listed on the return.

  1. Every Mother CountsNew York, NY

    General donation to public charity

    $90,000
  2. Eb Research PartnershipNew York, NY

    General donation to public charity

    $50,000
  3. The Etheridge FoundationEncino, CA

    General donation to public charity

    $50,000
  4. Road Recovery FoundationNew York, NY

    General donation to public charity

    $30,000
  5. Northern Light SchoolOakland, CA

    General donation to public charity

    $25,219
  6. Back to Earth Nature Connection IncBerkeley, CA

    General donation to public charity

    $25,000
  7. Community Foundation of Jackson HoleJackson, WY

    General donation to public charity

    $25,000
  8. Global Forest GenerationArlington, VA

    General donation to public charity

    $25,000
  9. Wild Tomorrow FundNew York, NY

    General donation to public charity

    $25,000
  10. MarinlinkSan Rafael, CA

    General donation to public charity

    $20,000
  11. Our Children's TrustEugene, OR

    General donation to public charity

    $20,000
  12. Valentino Achak Deng FoundationSan Francisco, CA

    General donation to public charity

    $20,000
  13. Believe Ranch and RescueSanta Ynez, CA

    General donation to public charity

    $12,071
  14. Magic Theatre IncSan Francisco, CA

    General donation to public charity

    $10,286
  15. Earth Law CenterDurango, CO

    General donation to public charity

    $7,500
  16. Jackson Hole WritersJackson, WY

    General donation to public charity

    $5,113
  17. The Foundation for TomorrowCharlotte, NC

    General donation to public charity

    $4,649

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Health2 grants $140,00033% of the total
  2. Mental health2 grants $80,00019% of the total
  3. Environment2 grants $45,00011% of the total
  4. International aid2 grants $45,00011% of the total
  5. Arts and culture2 grants $35,2868% of the total
  6. Education3 grants $34,9818% of the total
  7. 3 other causes3 grants $44,57110% of the total

By State

Grants to organizations with a US address, latest year.

  1. New York4 grants $195,000
  2. California7 grants $162,576
  3. Wyoming2 grants $30,113
  4. Virginia1 grant $25,000
  5. Oregon1 grant $20,000
  6. Colorado1 grant $7,500
  7. North Carolina1 grant $4,649

Officers, directors and trustees

5 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Tiffanie L DebartoloDIRECTOR/PRESIDENT Hours 0Pay $0
  • Scott D SchumakerDIRECTOR/VP/CFO/SECRETARY Hours 0Pay $0
  • Kira SiebertDIRECTOR Hours 0Pay $0
  • David S MallitzASSISTANT SECRETARY Hours 0Pay $0
  • Richard SolimineEXECUTIVE DIRECTOR Hours 40Pay $0

The return

More foundations

Similar foundations

Same main cause (health), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. Rosenbluth Family FoundationMill Valley, CA 22 grants Accepts applications $295,000 giving
  2. Lenore B & Frank M Heffernan Family Foundation IncRoss, CA 10 grants Accepts applications $453,000 giving
  3. Dave and Roma McCoy Family FoundationBishop, CA 2 grants Preselected only $435,716 giving
  4. The Harry and Estelle Soicher FoundationLos Angeles, CA 8 grants Preselected only $425,642 giving
  5. Harrington Family FoundationLos Altos, CA 30 grants Preselected only $469,373 giving