• AB Consulting
• AME Group
• Aquavolt Engineering Ltd.
• Arize Engineering
• Associated Engineering
• ASEM Engineering Ltd.
• B.D. Elliott
• Beaver Engineering
• Blueridge Engineering Ltd.
• BSA Engineering
• Bycar Engineering Ltd.
• CADA
• CCI
• Chen Consulting Ltd.
• Clover Contracting Ltd.
• Cronnox Canada Inc.
• DAS Mechanical HVAC Consultants
• Delta-T Consultants
• EPro
• Emec
• EMODE Solutions
• Enviro Engineering Systems Ltd.
• Flow Engineering
• Fluid Mechanical Engineering
• FU Associates Ltd.
• Hammerschlag & Joffe Inc.
• Hena Consulting
• Ianuzziello & Associates Inc.
• Impact Engineering
• Integral group
• ITEC
• Jade West Engineering Co. Ltd
• JS Refrigeration Engineering
• KD Mechanical Consultants Ltd.
• Laporte Engineering
• Leeson Engineering Inc.
• MCW Consultants Ltd.
• MEC Engineering Consulting Ltd.
• NADI Group
• Norman Disney and Young
• Orion
• Pinchin
• Polar Engineering
• Prism Engineering
• Ralph Cheng Engineering Ltd.
• Reinbold Engineering
• Remedy Engineering
• RH Strong
• Rocky Point Engineering
• Smith and Anderson
• SRC Engineering Consultants
• Stantec
• Sterling Cooper & Associates
• Tag Engineering Inc.
• Tower Engineering
• Voltas Engineering
• VPAC
• Williams Engineering
• WSP
• XT Engineering Ltd.
• Yoneda & Associates
• Zoom Engineering