Mahalo
San Francisco, CA

SUGi Foundation (doing business as SUGi / SUGi Project)

EIN 84-2041713
Environment & Animal Welfare Parks, Trails & Green Spaces
Mission

To restore biodiversity, climate resilience and community wellbeing in cities by creating ultra-dense native 'pocket forests' (Miyawaki method), delivering hands-on planting, education and research that reconnects people with nature.

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

About SUGi Foundation (doing business as SUGi / SUGi Project)

SUGi Foundation is a U.S.-based 501(c)(3) nonprofit (tax-exempt since 2019) that designs, funds and supports dense native “pocket forests” in urban and peri-urban settings worldwide. Founded by Elise Van Middelem, the organization uses the Miyawaki method to build small, biodiverse woodland patches that accelerate tree growth, improve soil health, and create community green spaces.

Over the last 2–3 years SUGi has remained active globally—running large community plantings, publishing annual impact reports, partnering on academic research into wellbeing, and delivering high-profile projects such as the Manhattan Healing Forest on Roosevelt Island (NYC). The organization publishes annual impact reports and maintains an active events and volunteer program to support ongoing planting, maintenance and community engagement.

Notable achievements

Global pocket-forest program

Scaled the SUGi pocket-forest model internationally, delivering well over 100 pocket forests (public reporting indicates 200+ projects across multiple countries) and forming city- and community-level partnerships to restore urban biodiversity.

Manhattan Healing Forest (Roosevelt Island)

Delivered New York City’s first Miyawaki-style pocket forest in partnership with local organizations, schools and city stakeholders—an example of SUGi’s community-led planting and resilience work completed during the 2023–2024 period.

Research partnership on wellbeing

Partnered with academic researchers (including a pilot with the University of Oxford) to measure the ecological and human wellbeing impacts of pocket forests, integrating science into program design and monitoring.

At a glance

Total assets
$215K
Annual revenue
$299K
Tax status
501(c)(3)Public charity
EIN
84-2041713
Location
San Francisco, CA
On Mahalo since
April 2026

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

Recognition

Operates as a registered 501(c)(3) nonprofit organization (IRS determination recognized in 2019).
Rated by Charity Navigator (platform profile shows a 60% score / Two-Star rating under current Charity Navigator reporting).
Received sustained media and sector attention for urban rewilding projects (coverage and features in major outlets and architecture/environment press for high-profile plantings and partnerships).

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