The primary operational and executive headquarters of Subsea 7 is located in Sutton, Greater London, United Kingdom, where central corporate leadership, administrative management, and global engineering strategies are coordinated. From a formal legal and incorporation standpoint, the corporate entity is officially registered in Luxembourg. In addition to these core hubs, the company operates an extensive network of regional offices, engineering centers, fabrication yards, and logistical support bases strategically positioned in major international energy provinces across South America, Europe, Africa, and Asia-Pacific.