Tree San Diego is a nonprofit dedicated to increasing the quality and density of our urban forests for the benefit of people, the environment, and the future. To support tree planting efforts, Tree San Diego offers a Tree Steward Certification Program that provides trainees with the understanding of tree benefits, tree care and maintenance techniques, tree tracking and mapping tools, and industry best practices that empower the next generation. This program is open to anyone who wants to learn more about the benefits and care of trees and help educate their local community about our urban forest.

Our mission is to empower Central Texans to build stronger communities through planting and caring for trees.

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

Protect and improve Atlanta’s urban forest by planting, conserving, and educating.

3C-REN (Tri-County Regional Network) reduces energy use in our region's buildings for a more affordable, healthy, resilient, and sustainable community. 3C-REN is a collaborative partnership between San Luis Obispo, Santa Barbara, and Ventura Counties. We work on improving energy efficiency in our region by offering free programs and services for all building professionals and households.

To create a healthier and more vibrant Triangle region by safeguarding clean water, protecting natural habitats, supporting local farms and food, and connecting people with nature through land protection and stewardship, catalyzing community action, and collaboration.