International Society of Arboriculture (ISA)
“ISA is an organization that promotes practice of arboriculture to foster a greater awareness of the benefits of trees.” Use the link to find Certified Arborists in your area.
Tree Care Industry Association (TCIA)
“TCIA is a organization that provides continuing education, training, conferences, and publications to promote the safe and appropriate practice of tree care.” Use the link to find other companies in your area that hold themselves to these high standards.
Better Business Bureau (BBB)
The following are some third party articles that explain the importance of making sure that the company you choose has the proper Insurance that protects you and your property.