The Donald and Maureen Green Foundation

Private foundation · Grantmaker Santa Rosa, CA EIN: 91-1811432

The Donald and Maureen Green Foundation is a private foundation based in Santa Rosa, California. It reported 16 grants totaling $426,632 in 2024, supporting organizations working in areas including conservation, education, food assistance, music, and wildlife rescue.

The Donald and Maureen Green Foundation at a glance

In short: The Donald and Maureen Green Foundation gave $427K across 16 grants in 2024 (avg $27K), mostly in California. Source: 2024 IRS Form 990-PF.

Annual giving (2024)
$426,632
-11.0% vs 2023
Grants made (2024)
16
+6.7% vs 2023
Average grant
$26,665
-16.5% vs 2023
Median grant
$22,883
Total assets
$10,982,065
-1.0% vs 2023
Primary geography
California (84% of itemized 2024 grant dollars)
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated October 2026.

How to apply to The Donald and Maureen Green Foundation

How to Apply

Contact Thomas H. Birdsall and request the board’s grant-proposal guidelines.

Review Cycle
The filing states there are no submission deadlines.
Deadline
The filing states there are no submission deadlines.
Contact

Application contact: Thomas H Birdsall
Mailing address: 225 Mountain Meadow Lane, Santa Rosa, CA 95404
Phone: (415) 730-8174

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who The Donald and Maureen Green Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Wildlife Conservation Network: $135KWildlife Conservation Network$135KSonoma State University: $32KSonoma State University$32KSanta Rosa Memorial Hospice: $25KSanta Rosa Memorial Hospice$25KPepperwood Foundation: $25KPepperwood Foundation$25KLewa Wildlife Conservancy USA: $25KLewa Wildlife Conservancy USA$25KSonoma Bach: $25KSonoma Bach$25KOcean Conservancy: $25KOcean Conservancy$25KRedwood Empire Food Bank: $25KRedwood Empire Food Bank$25KThe Bird Rescue Center: $21KThe Bird Rescue Center$21KNational Philanthropic Trust: $20KNational Philanthropic Trust$20K

The largest 2024 recipient was Wildlife Conservation Network ($135K). Together the top 10 received $358K.

Grant Size Distribution

43 grants across all recorded years

41<$50K$50–100K2$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 41 grants of 43 (95%).

Geographic Focus

Where this funder awards grants

In 2024, 84% of grant dollars went to recipients in California, 6% to New York, 6% to the District of Columbia, and 5% to Pennsylvania. The listed recipients show substantial support for organizations in California, including several in Sonoma County.

Grant Distribution by State

5states

Share of 2024 grant dollars across all 16 itemized grants.

Cities

Santa RosaSan FranciscoRohnert ParkNew YorkCotatiSebastopolWashingtonJenkintownMadisonNapa

How The Donald and Maureen Green Foundation gives

  • 69% of 2024 grantees were also funded in 2023. Method
  • Giving grew 1069% from 2021 to 2024. Method
  • In 2024 it paid out 80% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$200K$400K$600K2 grants2020 3 grants2021 7 grants2022 15 grants2023 16 grants2024

From 2020 to 2024, annual grant giving ranged from $7K (2020) to $479K (2023). In 2024 it made 16 grants totaling $427K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Wildlife Conservation Network San Francisco, CAOperational Needs$135,330
Sonoma State University Rohnert Park, CAOperational Needs$32,036
Santa Rosa Memorial Hospice Santa Rosa, CAOperational Needs$25,000
Pepperwood Foundation Santa Rosa, CAOperational Needs$25,000
Lewa Wildlife Conservancy USA New York, NYOperational Needs$25,000
Sonoma Bach Cotati, CAOperational Needs$25,000
Ocean Conservancy Washington, DCOperational Needs$25,000
Redwood Empire Food Bank Santa Rosa, CAOperational Needs$25,000
The Bird Rescue Center Santa Rosa, CAOperational Needs$20,766
National Philanthropic Trust Jenkintown, PAOperational Needs$20,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2024$10,982,065$394,044$508,315$426,63216$431,672$320,375$538,046
2023$11,096,336$263,021$534,045$479,11115$479,111$221,118$479,507
2022$11,367,360$338,346$156,967$107,6907$107,690$290,313$477,172
2021$11,185,981$11,121,174$48,603$36,5003$36,500$142,697$68,679
2020$113,410$4,771$8,026$6,7502—$1,584$5,553

Under IRS private-foundation payout rules, The Donald and Maureen Green Foundation reported a distributable amount of $538K for 2024 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No foundation mission statement is provided. Its 2024 grantees included organizations with varied missions. For example, Wildlife Conservation Network says it connects conservationists and supporters and deploys resources to the field; Redwood Empire Food Bank says it works to feed neighbors in need and lead the community to end hunger; and Sonoma Bach says it promotes the performance and enjoyment of early and classical music in Sonoma County. Other grantees included Sonoma State University, Pepperwood Foundation, Ocean Conservancy, Lewa Wildlife Conservancy USA, and The Bird Rescue Center.

Grantmaking

In 2024, the foundation gave 16 grants totaling $426,632. Grants ranged from $3,500 to $135,330, with a median grant of $22,883. The largest award was $135,330 to Wildlife Conservation Network. Other notable grants included $32,036 to Sonoma State University; $25,000 each to Santa Rosa Memorial Hospice, Pepperwood Foundation, Lewa Wildlife Conservancy USA, Sonoma Bach, Ocean Conservancy, and Redwood Empire Food Bank; and $20,766 to The Bird Rescue Center. The filing listed the purpose of these grants as “operational needs.”

The foundation’s 2024 filing states that it does not restrict giving to preselected organizations. Applicants are required to follow grant-proposal guidelines designed by the board and may request a copy from the board. The board determines an appropriate award amount based on the application received; the filing states there are no restrictions on awards.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists Rebecca Green as president, Duncan Green as treasurer and CFO, Thomas H. Birdsall as secretary and executive director, and Daysi Green as director.

The Donald and Maureen Green Foundation is led by Rebecca Green, President since 2021 (on filings since 2020); none of the 4 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Rebecca Green

    President

    CFO & Secretary → President, 2021

    On filings since 2020

    5 hrs/week

    No compensation reported

  • Thomas H. Birdsall

    Secretary & Executive Director

    Director & Executive Director → Secretary & Executive Director, 2021

    On filings since 2020

    4 hrs/week

    No compensation reported

  • Daysi Green

    Director

    On filings since 2020

    2 hrs/week

    No compensation reported

  • Duncan Green

    Treasurer & CFO

    Director → Treasurer & CFO, 2021

    On filings since 2020

    2 hrs/week

    No compensation reported

Former officers (1)
  • Former: Donald Green (2020) — President

Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about The Donald and Maureen Green Foundation

How much does The Donald and Maureen Green Foundation give each year?

The Donald and Maureen Green Foundation gave $427K across 16 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $479K across 15 grants.

What is The Donald and Maureen Green Foundation's typical grant size?

The Donald and Maureen Green Foundation's median grant in 2024 was $22,883, and its average grant was $26,665, across 16 grants on its 2024 IRS Form 990-PF.

Where does The Donald and Maureen Green Foundation give grants?

The Donald and Maureen Green Foundation gives mostly in California: 84% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were New York (6%) and District of Columbia (6%). The most frequent recipient cities were Santa Rosa, CA (8 grants) and San Francisco, CA (2 grants).

Does The Donald and Maureen Green Foundation give general operating support?

Yes: 100% of The Donald and Maureen Green Foundation's 2024 grants with a stated purpose (16 of 16) were for general or operating support, per its 2024 IRS Form 990-PF.

Who are The Donald and Maureen Green Foundation's largest grantees?

The Donald and Maureen Green Foundation's largest 2024 grantees include Wildlife Conservation Network ($135,330), Sonoma State University ($32,036) and Santa Rosa Memorial Hospice ($25,000), according to its 2024 IRS Form 990-PF. Together they received 45% of its itemized 2024 grant dollars.

How large is The Donald and Maureen Green Foundation?

The Donald and Maureen Green Foundation reported $11.0M in total assets on its 2024 IRS Form 990-PF. It paid out $432K in qualifying distributions that year, against a required minimum of $538K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does The Donald and Maureen Green Foundation fund?

No foundation mission statement is provided. Its 2024 grantees included organizations with varied missions. See mission & focus areas ↑

How do I apply for a grant from The Donald and Maureen Green Foundation?

Contact Thomas H. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is The Donald and Maureen Green Foundation's EIN?

The Donald and Maureen Green Foundation's EIN (Employer Identification Number) is 91-1811432. IRS Form 990 filing data is available on this page for 2020–2024.

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(1)

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

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Cite this profile

Grantable. (2026). The Donald and Maureen Green Foundation funder profile. GrantGraph. Retrieved October 24, 2026, from https://grantable.co/funders/the-donald-and-maureen-green-foundation-morg_e57dcd86c9c24427b736315af623d154

BibTeX
@misc{grantable_911811432_2026,
  author       = {{Grantable}},
  title        = {{The Donald and Maureen Green Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-donald-and-maureen-green-foundation-morg_e57dcd86c9c24427b736315af623d154},
  note         = {Accessed 2026-10-24. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from The Donald and Maureen Green Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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