Donald B Tanklage and Carole F Tanklage Foundation
DONALD B TANKLAGE AND CAROLE F TANKLAGE is a public charity based in Novato, California. Its 2019 filing is marked as a final return, indicating that the foundation has terminated or is winding down.
Donald B Tanklage and Carole F Tanklage Foundation at a glance
In short: Donald B Tanklage and Carole F Tanklage Foundation gave $15.4M across 30 grants in 2020 (avg $514K), mostly in California. Source: 2020 IRS Form 990.
- Annual giving (2020)
- $15,409,350
- Grants made (2020)
- 30
- Average grant
- $513,645
- Median grant
- $23,750
- Primary geography
- California (100% of itemized 2020 grant dollars)
- Latest 990 filing
- Form 990, 2020 View filing
Data from IRS Form 990, 2020; updated September 2026.
How to apply to Donald B Tanklage and Carole F Tanklage Foundation
- Contact
Mailing address: 5 Hamilton Landing No 200, Novato, CA 94949
Phone: (415) 464-2500
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Donald B Tanklage and Carole F Tanklage Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2020
The largest 2020 recipient was Marin Community Foundation ($7.8M). Together the top 10 received $15.1M.
Organizations only. It also paid 1 individual scholarship ($25,000), which are not listed by name.
Grant Size Distribution
30 grants across all recorded years
The most common grant size was under $50K: 28 grants of 30 (93%).
Geographic Focus
Where this funder awards grants
The 2020 grant dollars went overwhelmingly to California recipients: the filing reports 99% for California, with Maine, Tennessee, Kansas, and Maryland each listed at 0% (rounded shares). The listed grants include recipients in California and Maine.
Grant Distribution by State
Share of 2020 grant dollars across all 30 itemized grants.
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
In 2020 it made 30 grants totaling $15.4M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Marin Community Foundation Novato, CA | Provide Operating Support | $7,779,318 |
| MCF Gift Fund Inc Novato, CA | Provide Operating Support | $6,995,032 |
| Direct Relief Santa Barbara, CA | Medical relief in the bahamas due to hurricane dorian | $45,000 |
| MGVP Inc Davis, CA | Provide Operating Support | $45,000 |
| Ocean Voyages Institute Sausalito, CA | Provide Operating Support | $45,000 |
| Amazon Watch Oakland, CA | Assist Environmental Crisis Due to Amazon Fires | $35,000 |
| Performing Animal Welfare Society Galt, CA | Operating Support to the San Andreas Sanctuary | $35,000 |
| Thrive with Horses Martinez, CA | Provide Operating Support | $35,000 |
| Coastside Opportunity Center El Granada, CA | General Operations and the Food Pantry | $30,000 |
| Beyond Barriers Athlectic Foundation Redwood City, CA | Provide Operating Support | $25,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|
| 2020 | $160,782 | $15,484,652 | $15,409,350 | 30 | $88,418 |
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation’s stated mission is to engage in charitable activities consistent with MCF’s charitable purposes. MCF’s mission, as quoted by the foundation, is to encourage and apply philanthropic contributions to improve the human condition, embrace diversity, promote a humane and democratic society, and enhance community quality of life for current and future generations.
Its 2020 grants included support for a range of organizations. For example, Direct Relief describes its mission as improving the health and lives of people affected by poverty or emergencies. Amazon Watch describes its work as protecting the rainforest and advancing the rights of Indigenous peoples in the Amazon Basin. The Performing Animal Welfare Society says it provides shelter and permanent homes for abused, abandoned, and retired exotic animals. Other grantees included organizations working in education, food assistance, animal rescue, and ocean preservation.
Grantmaking
Separately, the foundation’s filing narrative says it awarded 30 grants totaling $15,409,350 during the fiscal year ended June 30, 2020; these reported totals differ.
The largest listed 2020 grant was $7,779,318 to Marin Community Foundation for operating support. Other notable grants included $45,000 to Direct Relief for medical relief in the Bahamas due to Hurricane Dorian; $45,000 each to MGVP Inc. and Ocean Voyages Institute for operating support; and $35,000 each to Amazon Watch for assistance related to the Amazon fires and to the Performing Animal Welfare Society for operating support to the San Andreas Sanctuary.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2020 filing lists Carole F. Tanklage as chairperson. Directors listed are Lynne Tanklage, Kristin Tanklage Murphy, Jackson Inde Murphy, Marguerite Rose Murphy, Lani Alo, Ebony Marshall, Heather Johnson, Linda Sweeney, and Alexandra Derby.
The foundation’s filing states that its board had two classes of directors: MCF-class directors and donor-class directors. It says MCF-class directors held a majority of board seats and that the MCF class of directors were employees of MCF, identified as the foundation’s successor and supported organization.
Donald B Tanklage and Carole F Tanklage Foundation is led by Thomas Peters PhD, President & CEO on the 2020 filing; none of the 14 officers listed in 2020 report compensation.
Officers on the 2020 filing
Thomas Peters PhD
President & CEO
New on the 2020 filing
0.1 hrs/week
No compensation reported
Carole F. Tanklage
Chairperson
New on the 2020 filing
5 hrs/week
No compensation reported
Alexandra Derby
Director
New on the 2020 filing
0.5 hrs/week
No compensation reported
Ebony Marshall
Director
New on the 2020 filing
0.1 hrs/week
No compensation reported
Heather Johnson
Director
New on the 2020 filing
0.1 hrs/week
No compensation reported
Jackson Inde Murphy
Director
New on the 2020 filing
0.1 hrs/week
No compensation reported
Kristin Tanklage Murphy
Director
New on the 2020 filing
0.1 hrs/week
No compensation reported
Lani Alo
Director
New on the 2020 filing
0.2 hrs/week
No compensation reported
Linda Sweeney
Director
New on the 2020 filing
0.1 hrs/week
No compensation reported
Lynne Tanklage
Director
New on the 2020 filing
0.1 hrs/week
No compensation reported
Marguerite Rose Murphy
Director
New on the 2020 filing
0.1 hrs/week
No compensation reported
Vikki Garrod
Director
New on the 2020 filing
0.1 hrs/week
No compensation reported
Ashley Smith
Secretary
New on the 2020 filing
0.1 hrs/week
No compensation reported
Sa Hartman
CFO
New on the 2020 filing
0.1 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020. "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 Donald B Tanklage and Carole F Tanklage Foundation
How much does Donald B Tanklage and Carole F Tanklage Foundation give each year?
Donald B Tanklage and Carole F Tanklage Foundation gave $15.4M across 30 grants in 2020, according to its 2020 IRS Form 990.
What is Donald B Tanklage and Carole F Tanklage Foundation's typical grant size?
Donald B Tanklage and Carole F Tanklage Foundation's median grant in 2020 was $23,750, and its average grant was $513,645, across 30 grants on its 2020 IRS Form 990.
Where does Donald B Tanklage and Carole F Tanklage Foundation give grants?
Donald B Tanklage and Carole F Tanklage Foundation gives mostly in California: 100% of the grant dollars itemized on its 2020 IRS Form 990 went to recipients there. The most frequent recipient cities were San Francisco, CA (4 grants), Novato, CA (2 grants) and Oakland, CA (2 grants).
Does Donald B Tanklage and Carole F Tanklage Foundation give general operating support?
Yes: 80% of Donald B Tanklage and Carole F Tanklage Foundation's 2020 grants with a stated purpose (24 of 30) were for general or operating support, per its 2020 IRS Form 990.
Who are Donald B Tanklage and Carole F Tanklage Foundation's largest grantees?
Donald B Tanklage and Carole F Tanklage Foundation's largest 2020 grantees include Marin Community Foundation ($7,779,318), MCF Gift Fund Inc ($6,995,032) and Direct Relief ($45,000), according to its 2020 IRS Form 990. It also paid 1 individual scholarship ($25,000), which are not listed by name. Together they received 96% of its itemized 2020 grant dollars.
What does Donald B Tanklage and Carole F Tanklage Foundation fund?
The foundation’s stated mission is to engage in charitable activities consistent with MCF’s charitable purposes. See mission & focus areas ↑
How do I apply for a grant from Donald B Tanklage and Carole F Tanklage Foundation?
Donald B Tanklage and Carole F Tanklage Foundation has no public application process in the sources Grantable reviewed. Contact the foundation directly before submitting a request.
What is Donald B Tanklage and Carole F Tanklage Foundation's EIN?
Donald B Tanklage and Carole F Tanklage Foundation's EIN (Employer Identification Number) is 20-0089179. IRS Form 990 filing data is available on this page for 2020.
Data last updated September 2026. Sourced from IRS Form 990 filings. Research dossier generated September 2026.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS May 15, 2021)
- IRS filings on file for fiscal year 2020
Live grants for the work Donald B Tanklage and Carole F Tanklage Foundation funds
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