Sebastopol, CA

Apis Arborea

EIN 86-1689144

Environment & Animal Welfare Wildlife & Habitat Conservation

Mission

To safeguard the vitality and resilience of wild honeybees through a holistic ‘wilding’ approach that combines habitat restoration, research, education, and humane arboreal apiculture to regenerate natural nesting ecologies and strengthen apian networks.

IRS-recognized 501(c)(3) public charity Contributions are tax-deductible

Claim this page Visit www.apisarborea.org

About Apis Arborea

Apis Arborea is a Sebastopol, CA–based 501(c)(3) public charity focused on conserving wild, unmanaged honeybee populations by restoring habitat, advancing research, and promoting compassionate apiculture practices such as log‑hive ("TreeNest") designs. ([apisarborea.org](https://www.apisarborea.org/))

In the last several years Apis Arborea has launched a multi‑year research program monitoring wild honeybee trees, run workshops and public field trips, developed TreeNest habitat interventions, and grown its donor-funded operating budget (Form 990 reporting shows calendar‑year revenue of approximately $221k in 2024). ([cei.sonoma.edu](https://cei.sonoma.edu/galbreath-wild-honeybees))

Notable achievements

Seven‑year Galbreath research project

Initiated a long‑term research program (begun in 2021) at Sonoma State’s Galbreath Wildlands Preserve to monitor wild honeybee trees; the project has identified and conducts regular monitoring of roughly 80 wild honeybee trees to document resilience and lifecycle patterns. ([cei.sonoma.edu](https://cei.sonoma.edu/galbreath-wild-honeybees))

TreeNest habitat program

Developed and promoted TreeNests (biomimetic log‑hive designs) and related protocols to rehabilitate natural nesting ecologies for wild honeybees and provide a low‑intervention alternative to conventional managed hives. ([apisarborea.org](https://www.apisarborea.org/))

Organizational establishment and fiscal growth

Recognized as a tax‑exempt 501(c)(3) public charity (tax‑exempt since 2022) and reporting multi‑year revenue growth — Form 990 filings show revenue around $221k and net assets near $178k for calendar 2024. ([projects.propublica.org](https://projects.propublica.org/nonprofits/organizations/861689144))

At a glance

Total assets: $179K
Annual revenue: $221K
Tax status: 501(c)(3)Public charity
EIN: 86-1689144
Location: Sebastopol, CA
Website: www.apisarborea.org
On Mahalo since: May 2026

Financial figures from the IRS Business Master File, the IRS’s registry of tax-exempt organizations.

Recognition

Media and film coverage — Apis Arborea’s founder and programs have been featured in regional media and a documentary titled “Rewilding Honeybees,” increasing public visibility for their wilding approach.

Academic collaboration — The organization is the named initiator and host of the Galbreath Wildlands Preserve monitoring project in partnership with Sonoma State University’s Center for Environmental Inquiry, a visible applied‑research collaboration.

Public nonprofit profiles — Apis Arborea is listed in public nonprofit databases and tax‑filing aggregators (e.g., ProPublica Nonprofit Explorer) and appears on charity information sites; it currently appears on Charity Navigator’s site but is not rated due to limited third‑party rating data.

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