Supporting Organizations

MAKING A DIFFERENCE in Ontario's arboriculture industry. Supporting organizations is open to commercial firms, individuals and organizations who desire to promote the aims, purposes and welfare of ISAO (and includes one ISAO membership & one ISA membership).

Current ISA Ontario Supporting Organizations


Authentic Tree Care Inc.
Derek Welsh,, 416-990-2273
Box 118, BALDWIN ON L0E 1A0

BioForest Technologies
Joe Meating,, 1.888.236.7378
59 Industrial Park Crescent, SAULT STE. MARIE, ON P6B 5P3

Cardinal Equipment Inc.
Stewart Hunt,, 1.800.598.3044
161, Ferris Drive Unit 7, NORTH BAY, ON, P1A 4K2

Cressman Tree Maintenance & Landscaping Ltd.
Del Cressman, cressmantree@cogeco.ca905-372-3801
Box 57 COBOURG ON K9A 4K2 

Cor Bultena,
RR#1, 6915 County Road #7, ELORA ON N0B 1S0

Four Seasons Tree Care
Ken Lund, 
6282 Bloomington Rd., STOUFFVILLE ON L4A 7X3

Gardiner Tree Trimming & Removal Ltd.
William Gardiner, 
RR#1, 4785 Loggers Way, ARNPRIOR ON K7S 3G7

Glenwood Tree Services
Steven Lukac, 
663 Winston Churchill Blvd., MISSISSAUGA ON L5J 4P9

Goodreau Tree Service
Mark Goodreau, 
351 Queen Street North, TILBURY ON N0P 2L0

Guardian Tree Systems Inc.
Mike Raaymaker, 
170 Samuel Street, SARNIA ON N7T 2X9

Ingold Tree Service Inc.
Brian Ingold, 
1067 Maple Manor Road, CAMBRIDGE ON N1R 5S6

Manotick Tree Movers Inc.
Fred Stevens,, 613-489-1116
1966 Carsonby Road West

Nisco National Leasing
Laura Catalano,, 905-634-9559
3245 Harvester Rd, Suite 13, BURLINGTON, ON L7N 3T7

Ontario Line Clearing & Tree Experts
Matthew Wharram, 905-372-6706
P.O. Box 759, COBOURG ON K9A 4R5

Shady Lane Expert Tree Care
Jonathan Arnold,, 905-773-5906
17468 Warden Avenue, Newmarket, ON, L3Y 4W1

Universal Field Supplies
Mike McNairn,, 905-795-1610, 1-800-387-4940
1540 Trinity Drive, Unit #4, MISSISSAUGA ON L5T 1L6

W.M. Weller Tree Service
Mike Weller,, 905.476.4593
18 Circle Ridge Dr, KESWICK, ON L4P 2G9

Our mission is to enhance and promote the care and benefit of trees for present and future generations in Ontario through education, research and awareness.