David Leinbach

David is an ISA Board Certified Master Arborist, ISA Certified Tree Climber, TCIA Certified Treecare Safety Professional (CTSP), and TCIA Qualified Trainer, with over a decade of hands-on experience in the tree care industry as a climbing arborist. Recently, he returned to academia to pursue a Master’s degree in Horticulture at Colorado State University, where his research focused on the complex relationship between trees and wind.

As the Arboriculture Instructor at Front Range Community College’s Larimer Campus, David provides students with valuable, practical training in essential arboricultural skills, including tree climbing, pruning, biology, tree identification, and chainsaw safety. In addition to his teaching role, David serves as the Safety & Training Supervisor for TigerTree, Inc. in Laramie, Wyoming, where he continues to be an active practitioner in the field.

David also contributes to the arboriculture community as an evaluator for the ISA Certified Tree Climber credentialing program through the Rocky Mountain Chapter of the ISA. Deeply passionate about both trees and the people who care for them, David is committed to advancing safety, education, and the science of arboriculture.

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