Brenna Simmons-St. Onge

Brenna is a pragmatic visionary with over thirteen years of experience leading large and diverse teams from 13-200. She began her career developing and implementing sustainability programs for some of the world’s leading hotel brands, building over a decade of Corporate Social Responsibility experience. After overseeing acquisitions and mergers as the task force General Manager for several properties, she yearned to work on sustainability at the systems-level. Her boundless passion to create a better future drove her to the nonprofit realm. Since 2015 Brenna has led The Alliance Center, which brings people together to solve systemic problems and accelerate equitable climate solutions. Brenna has defined the Center’s vision and is developing a comprehensive strategy to help create a world where communities are inclusive, democracy is strong, economy thrives, and the planet is healthy.

Brenna has served on Denver Mayor‘s Sustainability Advisory Council as well as the University of Colorado’s Managing for Sustainability Advisory Council since 2014. In 2015 Brenna was named one of the top 25 Most Influential Young Professionals and in 2017 received the City of Denver’s Community Builder Sustainability Award. Brenna is a dynamic change agent who thrives in a fast-paced environment. She has insatiable curiosity and boundless desire to learn.