| Aecon Buildings |  | Champion | https://www.aecon.com/ |
| AGF Rebar Inc. |  | Champion | https://groupeagf.com/en/ |
| Alberici Constructors Ltd. |  | Champion | https://alberici.com/ |
| Alpeza General Contracting Inc. |  | Champion | https://www.alpeza.com/ |
| Aquicon Construction Co. Ltd. |  | Champion | https://aquicon.com/ |
| Aveiro Constructors Limited |  | Champion | https://aveiroltd.com/ |
| Ball Construction Ltd. |  | Champion | https://www.ballcon.com/ |
| Barclay Constructors |  | Champion | https://barclayconstructors.com/ |
| Benson Steel Limited |  | Champion | https://bensonsteel.com/ |
| BGIS |  | Champion | https://www.bgis.com/ |
| Bird Construction Industrial Services Ltd. |  | Champion | https://www.bird.ca/? |
| Black & McDonald Limited |  | Champion | https://blackandmcdonald.com/ |
| Broccolini Construction (Toronto) Inc. |  | Champion | https://www.broccolini.com/en |
| Buttcon Limited |  | Champion | https://www.buttcon.com/ |
| Cambria Design Build Ltd. |  | Champion | https://cambriadesign.ca/ |
| Canam Mississauga |  | Champion | https://www.canam.com/en/canam-in-mississauga/ |
| CanMar Contracting Ltd. |  | Champion | https://www.canmarcontracting.com/ |
| Chandos |  | Champion | https://www.chandos.com/ |
| Collaborative Structures Limited |  | Champion | https://collaborativestructures.com/ |
| Dineen Construction Group of Companies |  | Champion | https://dineen.com/ |
| Eastern Construction Co. Limited |  | Champion | https://www.easternconstruction.com/ |
| Elite Construction Inc. |  | Champion | https://eliteconstruction.ca/ |
| EllisDon Corporation |  | Champion | https://www.ellisdon.com/ |
| GEN-PRO / 1320376 Ontario Ltd. |  | Champion | https://www.genpro.ca/ |
| George Brown College |  | Champion | https://www.georgebrown.ca/ |
| Gillam Group Inc. |  | Champion | https://gillamgroup.com/ |
| Graham Bros. Construction |  | Champion | http://www.grahambros.com/ |
| Graham Construction & Engineering LP |  | Champion | https://www.grahambuilds.com/ |
| Green Infrastructure Partners Inc. |  | Champion | https://gipi.com/ |
| Harbridge and Cross Limited |  | Champion | https://harbridgeandcross.com/ |
| Hi-Tech Concrete Cutting |  | Champion | https://www.hitechconcretecutting.com/ |
| HKC Construction |  | Champion | https://www.hkcconstruction.com/ |
| Inscan Contractors |  | Champion | https://www.inscancontractors.com/ |
| Ira McDonald Construction Ltd. |  | Champion | https://www.iramcdonald.com/ |
| KAPP Infrastructure |  | Champion | https://kappinfrastructure.com/ |
| Kenaidan Contracting Ltd. |  | Champion | https://www.kenaidan.com/ |
| Ledcor Construction Limited |  | Champion | https://www.ledcor.com/ontario? |
| M&G Steel Limited |  | Champion | https://mgsteel.ca/mgsteel.ca/about-us/ |
| M.J. Dixon Construction Limited |  | Champion | https://mjdixon.ca/ |
| Maaten Construction Limited |  | Champion | https://maaten.ca/ |
| Magil Construction Canada Inc. |  | Champion | https://www.magil.com/en/ |
| Maple Reinders Constructors Ltd. |  | Champion | https://www.maple.ca/ |
| Matheson Constructors Limited |  | Champion | https://mathesonconstructors.com/ |
| Mattamy Homes |  | Champion | https://mattamyhomes.com/?country=CAN |
| Maxan Interior Systems |  | Champion | https://maxaninteriorsystems.com/ |
| Maystar General Contractors |  | Champion | https://maystargeneral.com/ |
| Melloul-Blamey Construction Inc. |  | Champion | https://www.melloul.com/ |
| Merit Contractors Niagara Ltd. |  | Champion | https://www.meritcontractors.com/ |
| Multi Tech Trades Corp |  | Champion | https://www.multitechcorp.ca/ |
| Multiplex Construction Canada Ltd. |  | Champion | https://www.multiplex.global/ |
| Nedlaw Roofing Limited |  | Champion | https://www.nedlaw.ca/ |
| Newton Group Ltd. |  | Champion | https://www.kiwinewton.com/ |
| Nith Valley Construction |  | Champion | https://www.nithvalleyconstruction.com/ |
| Northern Structures |  | Champion | https://www.northernstructure.ca/ |
| Northfleet Group Inc. |  | Champion | https://northfleet.ca/ |
| Ontario General Contractors Association (OGCA) |  | Champion | https://ogca.ca/ |
| Opening Minds/Mental Health Commission of Canada |  | Champion | https://openingminds.org/ |
| PCL Constructors Canada Inc. |  | Champion | https://www.pcl.com/ca/en |
| Percon Construction Inc. |  | Champion | https://www.perconconstruction.com/ |
| Phoenix Restoration Inc. |  | Champion | https://www.phoenixrestoration.ca/ |
| Pomerleau Inc. |  | Champion | https://pomerleau.ca/en |
| Remo General Contracting Ltd. |  | Champion | https://remogc.ca/ |
| Ritestart Limited |  | Champion | https://ritestart.ca/ |
| Rutherford Contracting Ltd. |  | Champion | https://ruthcon.ca/ |
| SafetyLoop Inc |  | Champion | https://www.safetyloop.com/home |
| Salit Steel |  | Champion | https://www.salitsteel.com/ |
| Soletanche Bachy Canada |  | Champion | https://www.sb-canada.com/ |
| Soncin Construction |  | Champion | https://www.soncinconstruction.com/ |
| Stainton Group Inc. (SG Constructors) |  | Champion | https://sgconstructors.ca/ |
| Steelcon Febrication Inc |  | Champion | https://www.steelcongoc.com/ |
| Stephenson's Rental Services |  | Champion | https://www.stephensons.ca/ |
| Stuart Olson Industrial Constructors Inc. |  | Champion | https://www.stuartolson.com/industrial-construction/ |
| Stubbe's Precast Commercial Inc. |  | Champion | https://www.stubbes.com/ |
| Torbear Contracting Inc. |  | Champion | |
| Triple Crown Enterprises Ltd. |  | Champion | https://tceont.com/ |
| Vestacon Limited |  | Champion | https://www.vestacon.ca/ |
| Zehr Group |  | Champion | https://www.zehrgroup.ca/ |
