A professional tree climber is commonly referred to as an “arborist” or a “tree surgeon.” Arborists are trained professionals who specialize in the care and maintenance of trees. They are knowledgeable about the needs of trees and are trained to provide proper care, including tree climbing for pruning, inspection, disease treatment, and removal. Arborists often hold certifications, such as the Certified Arborist designation from the International Society of Arboriculture (ISA), which demonstrates their expertise and commitment to the field.