Mission & People

People need trees and trees need people.

TreePeople is Southern California’s largest environmental movement whose mission is to inspire, engage and support people to take personal responsibility for the urban environment, making it safe, healthy, fun and sustainable and to share our process as a model for the world.

Leadership Anchor Link


Eileen Garcia

Director of Community Forestry Strategic Partnerships & Operations

Thierry Rivard

Director of Mountain Forestry Strategic Partnerships & Operations


Bryan Vejar

Senior Manager Arboricultural Training and Education

Mountain Forestry

Community Forestry

Pam Gibson

Community Forestry Regional Manager (San Fernando Valley)

Rose Liston

Community Forestry Associate (San Fernando Valley)

Juan Cueto

Community Forestry Associate (South East Los Angeles)

Juan Vaca

Community Forestry Associate (South East Los Angeles)



Youth Leadership

Outdoor Equity

Green Infrastructure

Talia Dotson

Talia Dotson

Green Infrastructure Community Engagement Senior Manager

Policy & Research

Marketing & Communications

Operations & Grants


Administration & Park Operations

TreePeople Land Trust

Mark Fiege

Mark Fiege

TreePeople Land Trust Restoration Project Manager

Board of Directors

Noah Perch-Ahern

Vice Chair, Partner at Greenberg Glusker Environmental Department

John D. Bunzel, CFP®

First Vice President | Financial Advisor | Global Sports and Entertainment Director, Certified Financial Planner™ Insurance Planning Director THE 310 GROUP Morgan Stanley Wealth Management

Ruth Y. Goldway

Treasurer, The Honorable Ruth Goldway, retired chairman | US Postal Regulatory Commission

Edgar G. Dymally

Secretary, Senior Environmental Specialist | Metropolitan Water District of Southern California

Beth Burnam

Board Member, Co- President and Founding Member of the North Topanga Canyon Fire Safe Council

Dr. Jonathan Fielding

Board Member, Professor at the UCLA Fielding School of Public Health and the David Geffen School of Medicine at UCLA, and Author

Dr. Lee Kats

Board Member, Professor of Biology, Vice Provost for Research and Strategic Initiatives

Jered Lindsay

Board Member, Senior Attorney, Environmental Section, Southern California Edison Law Dept.

Robert Llorens

Board Member, EVP & Chief Credit Officer Cal Private Bank

William Quicksilver

Board Member, Manatt, Sr. Partner, Chief Executive Officer, Managing Partner Emeritus

Keith Terasaki

Board Member, Interventional Radiologist at the Kaiser Hospital, Chairman of the Terasaki Family Foundation, Chairman of the Board of Directors of the Wesley Health Clinics

Sam Whiting

Board Member, Director, Boeing Global Engagement

Ira Ziering

Board Member, Entrepreneur, Ziering France Co.


Our Core Values

At TreePeople, we are....


Sparking joy is at the core of everything we do. Our work is fun, hopeful, and uplifting. We spread our passion to others and support them to change the world for the better.


We foster kindness and a culture that welcomes everyone. We center diverse voices to further environmental justice and equity in the communities we serve. Everyone has a place in our movement; we are all TreePeople.


We actively listen to gain understanding and are courteous and mindful in our interactions with others. We show respect to the spaces where we work, to the people and cultures we work with, and to the history that precedes us.


We prioritize collaboration. We do this within the organization and the communities we serve. We are at our best when we work together and actively step up when one of us needs support.


We ensure the longevity of our work through lasting and meaningful commitment to the spaces and the communities we engage with. We strive to exemplify our mission not only through our words but through our actions. We are dedicated to learning and innovating as we strive towards a greener future for us all.