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Quercus Symbiosis Foundation

Grantmaking foundation in Potter Valley, California · EIN 93-4869850

Grants itemized on the 990
$34KTax year 2025
Grants made
3Tax year 2025
Total assets
$390KLatest reported
Latest IRS filing
2025Form 990 / 990-PF

Mission

THE FOUNDATION IS CONCERNED WITH THE HEALTH OF TREES IN NORTHERN CALIFORNIA. SOME SPECIES ARE ARE BEING ADVERSELY BY A DISEASE THAT IS NOT UNDERSTOOD. CLIMATE CHANGE MAY PLAY A ROLE IN THEIR STRUGGLE. THE FOUNDATION IS RESEARCHING POSSIBLE CAUSES AND IS WORKING WITH UNIVERSITY RESEARCHERS. THE FOUNDATION IS JUST GETTING STARTED HAVING BEEN FORMED IN DECEMBER 2023. THE TRUSTEE WAS ABLE TO ATTEND A CLIMATE CHANGE SUMMIT IN DC.

Quoted from the foundation's IRS filing.

Giving by year

$34K2024
$34K2025

Totals by tax year, rounded to two significant figures. Years without a reported total show the sum of grants itemized on the filing.

Top recipients

RecipientAmountTax year
Hopland Research & Extension Center$23K2025
Miscellaneous$6.5K2025
Potter Valley Community & Youth Ctr$5K2025

Amounts are rounded. The full grantee list (3 grants in 2025) is available with a free account.

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Source: IRS Form 990 and 990-PF filings, tax year 2025. Also see this organization on ProPublica Nonprofit Explorer.