AtkinsRéalis Group Inc., formerly known as SNC-Lavalin Group Inc., is a Canadian company based in Montreal that provides engineering, procurement, and construction services to various industries, including mining and metallurgy, environment and water, infrastructure, and clean energy. AtkinsRéalis was the largest construction company, by revenue, in Canada, as of 2021. The firm has approximately 37,000 employees worldwide, with offices in over 50 countries and operations in over 160 countries. Wikipedia