Quercus Symbiosis Foundation

POTTER VALLEY, CA EIN: 93-4869850

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.

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.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

1states

States

Cities

HoplandPotter ValleyVarious

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$84K$168K$251K$335K20242025
Metric20252024
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

Giving Over Time

Total grant dollars and number of grants per year

$0$9K$17K$26K$34K0 grants20243 grants2025

Grant Insights

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2025

HOPLAND RESEARCH & EXTEN…$23KMISCELLANEOUS$7KPOTTER VALLEY COMMUNITY …$5K

Grant Size Distribution

3 grants across all recorded years

3<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

Among its reported 2025 grants, the largest include Hopland Research & Extension Center ($22,500), Miscellaneous ($6,500), Potter Valley Community & Youth Ctr ($5,000).

RecipientPurposeAmount
MISCELLANEOUS VARIOUS, CAENVIRONMENTAL$6,500
HOPLAND RESEARCH & EXTENSION CENTER HOPLAND, CARESEARCH & EDUCATIONAL$22,500
POTTER VALLEY COMMUNITY & YOUTH CTR POTTER VALLEY, CAYOUTH EMPOWERMENT & EDUCATION$5,000

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2025 IRS filing

From 2025 filing

NameTitleHoursCompensation
MARTIN VOGTEXECUTIVE TR15

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.

Where does Quercus Symbiosis Foundation operate?

Quercus Symbiosis Foundation has awarded grants in California.

What size grants does Quercus Symbiosis Foundation award?

In 2025, Quercus Symbiosis Foundation awarded 3 grants totaling $34K — an average of about $11K per grant, based on its IRS Form 990 filings.

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 April 2026. Sourced from IRS Form 990-PF filings.

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