Who We Are & What We Do
THE INTERNATIONAL SOCIETY OF ARBORICULTURE (ISA) enjoys a rich heritage as a scientific and educational organization with a primary mission to disseminate information and knowledge in the care and preservation of trees. The Ontario Chapter sits consistently at 800-900 members, while the international membership is over 22,000, divided into almost 50 chapters and associate organizations worldwide – the world's largest such organization. There are currently over 1300 ISA Certified Arborists in Ontario and more than 31,000 worldwide.

President: John Stewart
Past President: Mike Watson
Treasurer: Arthur Beauregard
Executive Director: Rebecca Lord
DIRECTORS-AT-LARGE
Mike Raaymaker
Dr. Adrina C. Bardekjian
Kim LaFramboise
Eric Batty
Mandy Vandenberg
Steve Robinson
INTERNATIONAL CoR REP
Murray Potts
List of board committees...
One page overview providing general information about the ISAO Chapter...