- A.B. Mechanical
- A.W. Leil Cranes & Equipment Limited
- Able Infrastructure Inc.
- Aecon Mining Construction Services
- Allsteel Coatings Ltd.
- AML Painting Ltd.
- A-Tech Roofing Ltd.
- Atlantic Automation Limited
- Atlantic Roofers Limited
- Atlantica Mechanical Contractors Inc.
- Bay Tank and Vessel of Canada, Ltd.
- Black & McDonald Limited
- Brake Electric Ltd.
- Bremner’s Plumbing & Heating Ltd.
- Brilun Construction Limited
- Brimac Masonry Ltd.
- C.C. MacDonald Limited
- Cape Breton Drywall 2004 Limited
- Crosbie Industrial Services Limited
- Easco Electric Limited
- East Coast Metal Fabrication 2015 Inc.
- Fitz’s Construction Ltd.
- Flynn Canada
- Fosco Roofing Limited
- G. & M. Insulation & Siding Limited
- Gardner Electric Ltd.
- Guildfords Inc.
- Harris Rebar Canada Placing Limited
- Highland Insulators Ltd.
- Himmelman Contractors Limited
- Icon Insulation Atlantic Canada Inc.
- Ideal Electric Limited
- Irving Equipment
- J.A. Borden Enterprises Ltd.
- Joe Parsons Construction Ltd.
- John Trenholm Fire Protection
- Joneljim Concrete Construction Limited
- Lancor Concrete Contractors Ltd.
- Leslie & Benn Contracting Limited
- Life Safety Systems (A Division of Atlantica Mechanical Contractors Inc.)
- Lindsay Construction
- Lynk Electric Limited
- MacGregor’s Custom Machining Ltd.
- Marid Industries Limited
- McNally Construction Inc.
- Municipal Ready-Mix Limited
- Northern Contracting Limited
- Nova Tile & Marble Limited
- Omega Formwork Inc.
- Otis Canada Inc.
- Petrifond Foundation Company Limited
- PMC Roofing Limited
- Pomerleau Inc.
- Pro Insul Limited
- Ralph Connor Company Limited
- Rendan Fabricators
- RKO Steel Limited
- Roclan Construction
- Safway Services Canada Inc.
- Scaffold E & D Ltd.
- Stott Aluminum Corporation Limited
- Sunny Corner Enterprises Inc.
- Tartan Interiors Limited
- The Cahill Group (GJ Cahill & Company (1979) Limited)
- ThyssenKrupp Elevator Limited
- Timberlake Construction Ltd.
- Vic Aucoin’s Electric Ltd.
- Walker’s Electrical Construction and Maintenance
- Yurmac Electric Limited
- Zutphen Contractors Inc.