The OTCC brings together arborists & industry members in this fun, competitive event.
The OTCC is open to the public and everyone is welcome to attend: watch arborists showcase their skills, learn about trees at educational sessions, visit a tradeshow featuring our favourite vendors and anyone can try out tree climbing at the “Fun Climb” station under the guidance of a professional arborist.

Congratulations to our 2026 OTCC Champions: Joel Dreise and Hannah Winters!

See the Masters scores here and the Overall scores here.

Thank you to all our competitors, our host Niagara Parks Botanical Gardens (and their awesome staff and students), every single one of our incredible volunteers, our OTCC Committee, and our exhibitors and sponsors! Stay tuned for details about the 2027 OTCC!

OTCC Committee Chair:

Ken Gillies
[email protected]

Head Judge:

Jess van Vliet
[email protected]

Head Tech:

Peter de Vries
[email protected]

Masters’ Sponsor: Davey Tree Expert Co. of Canada Limited

Thank you to our Host: Niagara Parks

The Arborist Store

Arborwood Tree Service

Bobcat of Hamilton – Avant

Brandt Tractor Ltd

Cardinal Equipment

Cohen & Master Tree and Shrub Services Ltd

Creighton Rock Drill Ltd

Diamond Crane Corp. &
Diamond Tree Care & Consulting Inc.

Eloquip Ltd

Husqvarna Canada Inc.

Hydro One

Kodiak Tree Services

Maple Leaf Ropes

Milwaukee Tool Canada

Nors Construction Equipment Canada ST

Petzl

Pineridge Tree Service

Powertech

Shepherds Utility Equipment Sales (1989) Ltd.

Sherwood Maintenance Group Inc

Vermeer Canada Inc.

Arboriculture Canada Training & Education Ltd.

Arborist Supply Co. Inc.

Arbsession

Elevation Canada

Kebtek

Thank you to our 2026 OTCC Exhibitors!

Algonquin College
Allan Fyfe Equipment Ltd
Arborist Safe Work Practices
The Arborist Store
Arborium
Bartlett Tree Experts
Bobcat of Hamilton – Avant
Brandt Tractor Ltd
Creighton Rock Drill Ltd
Davey Tree Expert Co. of Canada Limited
Derette Direct
Diamond Crane Corp & Diamond Tree Care & Consulting Inc.
Eloquip Ltd
Eyolf Inc.
Goman Lift
Ground Worker Training Program
Husqvarna Canada Inc.
Hydro One
IHSA Infrastructure Health and Safety Association
Kask America
Kebtek
Maple Leaf Ropes
Niagara Parks School of Horticulture
Nors Construction Equipment Canada ST
Novafor Equipement Inc.
OCAA Ontario Commercial Arborists Association
Palfinger North America, LLC
Petzl
Powertech
Shepherds Utility Equipment Sales (1989) Ltd.
Stihl Limited
Vermeer Canada Inc.

Past Virtual Forums: Thank you to everyone who participated: your input helps continue to make the OTCC better and better!

• May 17 2023 Virtual Forum: Watch the recording here
• Nov 15 2023 Virtual Forum: Watch the recording here
  
• June 18 2024 Virtual Forum: Watch the recording here
• April 16 2025 Virtual Forum: Watch the recording here
• March 25 2026 Virtual Forum: Watch the recording here

Ontario’s Ascent Event Records were established at the 2024 OTCC:
Serena Soucy – Ontario Women’s Ascent record: 17.87 seconds
Chris Sallows – Ontario Men’s Ascent record: 8.80 seconds

Is your municipality interested in hosting an OTCC?
The OTCC event is a great way to showcase your municipality, your local park, and to bring the community together for an incredible event! See requirements to host an OTCC event here. And contact us for more information