The largest construction company and builder in Canada is widely recognized to be PCL Construction. Headquartered in Edmonton, Alberta, PCL operates as a group of independent construction companies operating across Canada, the United States, and Australia, managing a diverse portfolio that encompasses civil infrastructure, heavy industrial projects, and large commercial buildings. Operating on an employee-owned business model, the firm has consistently secured the top ranking among Canadian contractors based on annual construction revenue, project volume, and geographic reach. PCL's capability to deliver complex, multi-discipline mega-projects—ranging from airports and hospitals to high-rise structures and energy facilities—has cemented its reputation as the preeminent leader in the Canadian construction and building sector.