Sventab

Sventab, formally recognized as Stockholms Vattenentreprenader, is a distinct and established actor in the Swedish maritime infrastructure and civil engineering sector. With roots dating back to the mid-1970s, the company has developed from a specialized diving contractor into a comprehensive provider of marine construction services. It operates at the critical intersection of land and water, delivering heavy engineering solutions for ports, municipalities, and industrial clients across Sweden. The firm is widely acknowledged for its ability to execute complex projects in challenging aquatic environments, ranging from inland lakes like Mälaren to the coastal waters of the Baltic Sea. The company’s core operational focus lies in the construction, maintenance, and repair of essential marine structures. Sventab acts as a primary contractor for the development and rehabilitation of quays, piers, and bridges, ensuring the structural integrity of vital transportation hubs. A significant portion of its portfolio involves the installation and maintenance of subsea infrastructure. This includes the deployment of underwater pipelines for water distribution, sewage systems, and district heating, as well as the laying of submarine cables for electricity and fiber optic communications. These capabilities allow the enterprise to support the modernization of public utilities and energy networks that traverse Sweden’s extensive archipelago and waterway systems. Beyond heavy construction, the firm retains a strong heritage in professional diving and underwater services. Sventab employs specialized teams capable of performing underwater inspections, concreting, cutting, and welding, which are essential for maintaining hydroelectric power plants, dams, and lighthouses. This expertise is supported by a robust fleet of marine vessels, including workboats, barges, and tugs equipped for dredging, heavy lifting, and transport. This logistical capacity enables the company to mobilize resources quickly for urgent repairs or long-term infrastructure development. Since 2014, Sventab has been an integral part of the MarCon Group, a prominent industrial conglomerate in the Nordic marine sector. This strategic integration places the company within a network of sister entities, allowing it to leverage shared technical resources and collaborate on large-scale framework agreements. Through this alliance, Sventab strengthens its role as a versatile partner in the maritime industry, combining local flexibility with the broad capacity required to secure and sustain Sweden’s marine built environment.