The primary global corporate headquarters of AtkinsRéalis is located in Montreal, Quebec, Canada. Situated in the heart of downtown Montreal, this central administrative hub manages the overarching corporate strategy, international governance, and global operations of the engineering and nuclear services enterprise. In addition to its Canadian headquarters, the company maintains extensive regional offices, technical hubs, and operational centers spanning the United Kingdom, the United States, the Middle East, and the Asia-Pacific region to support its widespread client portfolio.