Thanks to all our sponsors, attendees, and exhibitors!

You helped make our the conference a great place to meet and learn!

Member Services

Access member services and sign up to be listed in our ISA Certified Arborist Directory, check in on newsletters, and more.


The ISA Arborist Certification Program is a voluntary effort among professionals in the tree care industry to establish a standard of quality in arboricultural work.

Continuing Education

The Chapter is dedicated to the consistent and continued education and professional development of our members. The PNW Education Plan strives to develop appropriate programs to meet the diverse skill levels in our Chapter.

Public Outreach

The Chapter recognizes the broad reach of the entire green industry and strives to position itself as an industry advocate to promote the advances of arboriculture and urban forest throughout the Chapter region.

Hire an ISA Certified Arborist

Trees add value to your property and the health of your community. "ISA Certified Arborists" help maintain that investment by providing a variety of services from planting, pruning, and removal to appraisals, expert witness, and emergency tree care.

The Chapter maintains a promotional directory of ISA Certified Arborists who serve as Consulting Arborists and/or are affiliated with a Commercial Tree Care Company. The ISA Certified Arborists listed here have paid to advertise their services. This is not a complete listing of all of ISA Certified Arborists in the Pacific Northwest, and no endorsement or recommendation is implied nor granted to any individual listed.

A complete list of ISA Certified Arborists is available from the International Society of Arboriculture, PO Box 3129, Champaign, IL 61826; (888) 472-TREE; or