City Trees was founded in 1989 by Frank Fredericks, who began his career as a volunteer for Friends of the Urban Forest, and received the International Society of Arboriculture’s “Volunteer of the Year” award. Today, City Trees is operated by Alex Thomas and continues its mission to preserve and beautify the trees of San Francisco, by providing quality service by experienced professionals.

Alex began working with Frank Fredericks and Joshua Bewig at City Trees in 2011 and is an ISA Certified Arborist. He grew up on his family's pear orchard in Ukiah, CA, received his BFA from Rhode Island School of Design, and is a graduate of the James Krenov Fine Woodworking program. 


Phone: 415-626-8535