Allied Professionals

PNW-ISA members regularly work with and are a part of other professional organizations. In recognition of that, we often offer members of our allied professional organizations discounts on our classes and events. If you are a member of an organization that regularly interacts with arborists in the Pacific Northwest or internationally and would like to become an ally, please contact us.


Alaska Horticulture Association
Alaska Chapter APA
Alaska Forest Association


Inland Empire Society of American Foresters
Idaho Nursery and Landscape Association
Idaho Chapter APA
Idaho-Montana Society of Landscape Architects


Society of American Foresters Northwest
Oregon Landscape Contractors Association
Oregon Association of Nurseries
League of Oregon Cities
Oregon Chapter APA


Inland Empire Society of American Foresters
Society of American Foresters Northwest
Washington State Nursery and Landscape Association
Washington Association of Landscape Professionals
Planning Association of Washington
Association of Washington Cities
Washington Chapter APA

British Columbia

Planning Institute of British Columbia
Association of BC Forest Professionals
British Columbia Landscape and Nursery Association
British Columbia Society of Landscape Architects