Contact Information


The International Tree Climbing Championship Committees and the World Championship are managed by the International Society of Arboriculture (ISA). If you have any questions, please feel free to contact our office by email at isa@isa-arbor.com or by phone at +1.217.355.9411. We look forward to the opportunity to help answer your questions.

For more information on the ISA visit our website.

Mailing Address

International Society of Arboriculture
Attn: ITCC
P.O. Box 3129
Champaign, IL 61826-3129
United States

Physical Address

International Society of Arboriculture
2101 West Park Court
Champaign, IL 61821
United States

Phone and FAX Numbers

Toll Free: 888.472.8733
Phone: +1.217.355.9411
FAX: +1.217.355.9516

Hours of business

The ISA office is open from 8a.m. to 5 p.m. Monday through Friday. The headquarters is located in Champaign, Illinois, United States and is in the Central Time Zone.

©International Society of Arboriculture 2009-2017
P.O. Box 3129 • Champaign, IL 61826 • +1.217.355.9411

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