About Us

The Pacific Northwest ISA is a member organization for individuals involved in the field of arboriculture and urban forestry. From our Annual Training Conference and to our ISA Certified Arborist promotional directory, the Chapter prides itself on being the "go-to" source for information about proper tree care in the Pacific Northwest.

Each year the Chapter holds an Annual Training Conference. The conference rotates around the region so members have ample opportunity to attend. Our Regional Education Coordinators help expand access to educational programs and required ISA continuing education units. The Chapter website provides improved member access, an ISA Certified Arborist promotional directory, and helpful links about proper tree care.

Our Mission

The mission of the Pacific Northwest ISA Chapter is to foster a greater appreciation of trees and promote the professional practice of arboriculture through education, research and technology.

Our Values

  • The Chapter places great value on education and quality services and shall strive to meet member needs with a balance of programs and products.
  • The Chapter recognizes the practice of and demand for professional tree care as an important component of healthy communities and shall work to promote such quality care among our members and the general public.
  • The Chapter recognizes varying levels of expertise within the industry and shall strive to develop and promote appropriate programs and services to meet that diversity.
  • The Chapter shall position itself as an industry advocate promoting the advances of arboriculture and urban forestry throughout the Chapter region.
  • The Chapter operations shall reflect a healthy organization with exceptional standards for participation, leadership, and accountability.
  • The Chapter shall support arboricultural research and the distribution of research findings.

The Pacific Northwest ISA is a 501(c)(3) nonprofit organization incorporated in the state of Oregon. Donations to the organization are tax-deductible as a charitable donation to the full extent of the law. Our federal employment identification number (FEIN) is 91-1492542.

Chapter Forms

Find chapter forms related to Award Nomination's and more here.

Chapter Governance

The PNW-ISA Board of Directors is comprised of an Executive Committee and an Advisory Committee. The Executive Committee is elected by the Chapter membership and is comprised of four officers (President, President Elect, Secretary, Treasurer) and five program directors (Member Services, Certification, Continuing Education, Public Outreach, and Governance). The Advisory Committee is nominated by the Board of Directors and is comprised of Editor, ISA Representative for the Council of Representatives, and TREE Fund Liaison.


Tree Fund
The TREE Fund provides research grants, scholarships and educational programs to advance knowledge in the field of arboriculture and urban forestry. We maintain an informational page about our involvement with the TREE Fund plus a link to their website.

Join Us

Join the PNW-ISA. By becoming a member, you can access discounts on all PNW-ISA courses, workshops, books, and other merchandise. You also receive a subscription to Pacific Northwest Trees, our quarterly newsletter highlighting events, new technology, and other news and notes about current tree care practices. Members say the networking opportunities are valuable too.

Contact Us

Contact our chapter staff, webmaster, Regional Education Coordinators, Tree Climbing Competition Coordinators, and more here.