Quercus Symbiosis Foundation
Quercus Symbiosis Foundation is a private foundation focused on Environment & Animals, based in Potter Valley, CA. IRS filing data is available from 2024 through 2025. As of 2025, the organization holds $387K in total assets. In 2025, it awarded 3 grants totaling $34K. Net investment income was $13K.
Key facts about Quercus Symbiosis Foundation
In short: Quercus Symbiosis Foundation gave $34K across 3 grants in 2025 (avg $11K), mostly in California. Source: 2025 IRS Form 990-PF.
- EIN
- 93-4869850
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $34,000
- Grants made (2025)
- 3
- Average grant
- $11,333
- Median grant
- $6,500
- Total assets
- $386,553
- Primary geography
- California (100% of itemized 2025 grant dollars)
Data from IRS Form 990-PF, 2025; updated September 2026.
Quick answers about Quercus Symbiosis Foundation
How much does Quercus Symbiosis Foundation give each year?
Quercus Symbiosis Foundation gave $34K across 3 grants in 2025, according to its 2025 IRS Form 990-PF.
What is Quercus Symbiosis Foundation's typical grant size?
Quercus Symbiosis Foundation's median grant in 2025 was $6,500, and its average grant was $11,333, across 3 grants on its 2025 IRS Form 990-PF.
Where does Quercus Symbiosis Foundation give grants?
Quercus Symbiosis Foundation gives mostly in California: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there.
Does Quercus Symbiosis Foundation give general operating support?
Not in 2025: none of the 3 grants with a stated purpose on Quercus Symbiosis Foundation's 2025 IRS Form 990-PF were described as general or operating support.
Next steps with Quercus Symbiosis Foundation
- How to evaluate Quercus Symbiosis Foundation as a funder
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Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$387K
+29.4% YoY
Annual Giving
$34K
Grant Count
3
Avg Grant Size
$11K
About Quercus Symbiosis Foundation
Based on IRS filings
Quercus Symbiosis Foundation is a private foundation focused on Environment & Animals, based in Potter Valley, CA. IRS filing data is available from 2024 through 2025. As of 2025, the organization holds $387K in total assets. In 2025, it awarded 3 grants totaling $34K. Net investment income was $13K.
Focus Areas
Ready to take the next step with Quercus Symbiosis Foundation?
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 3 itemized 2025 grant dollars.
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 |
|---|---|---|
| Total Assets | $386,553 | $298,746 |
| Revenue | $138,421 | $304,845 |
| Expenses | $50,612 | $6,099 |
| Qualifying Distributions | $35,960 | $2,436 |
| Net Investment Income | $13,421 | $4,845 |
| Distributable Amount | — | — |
Data update history
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2024–2025
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 3 recipients in 2025
Grant Size Distribution
3 grants across all recorded years
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| HOPLAND RESEARCH & EXTENSION CENTER Hopland, CA | RESEARCH & EDUCATIONAL | $22,500 |
| MISCELLANEOUS Various, CA | ENVIRONMENTAL | $6,500 |
| POTTER VALLEY COMMUNITY & YOUTH CTR Potter Valley, CA | YOUTH EMPOWERMENT & EDUCATION | $5,000 |
Leadership & Key People
Officers and directors from IRS filings
Quercus Symbiosis Foundation's only listed officer is Martin Vogt, Executive Tr on every filing since 2024 (uncompensated).
Officers on the 2025 filing
Martin Vogt
Executive Tr
On filings since 2024
15 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2024–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is Quercus Symbiosis Foundation?
Quercus Symbiosis Foundation is a private foundation focused on Environment & Animals, based in Potter Valley, CA. It holds $387K in total assets as of 2025.
How large is Quercus Symbiosis Foundation?
As of 2025, Quercus Symbiosis Foundation holds $387K in total assets with $138K in annual revenue. It awarded 3 grants totaling $34K in 2025.
What is Quercus Symbiosis Foundation's EIN?
Quercus Symbiosis Foundation's EIN (Employer Identification Number) is 93-4869850. IRS Form 990 filing data is available on this page for 2024–2025.
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Data last updated September 2026. Sourced from IRS Form 990-PF filings.