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 600-700 members, while the international membership is over 20,000, divided into almost 50 chapters and associate organizations worldwide – the world's largest such organization. There are currently over 500 ISA Certified Arborists in Ontario and more than 25,000 worldwide.
ISAO BOARD OF DIRECTORSPresident: Rory Quigley
Past President: Linda Hawkins
DIRECTORS-AT-LARGE
Arthur Beauregard
Rachel Bowery
Heidi Breen
Laura Catalano
Ken Gillies
Stephen McQuigge
Dalton Sproule
INTERNATIONAL REP
Alastair Fyfe
List of board committees...
One page overview providing general information about the ISAO Chapter...



