We are subsea: This is our domain.

N-Sea, offshore contractor and specialist in survey and IMR (Inspection, Maintenance, Repair) provides effective and cost-efficient solutions to subsea infrastructure and assets to meet the needs of the international oil and gas and renewable industry. Delivering subsea: from inspections through to maintenance management to decommissioning, taking into account a safe environment.    

N-Sea Survey provides a broad range of subsea survey services for engineering purposes, construction support and IMR (inspection, maintenance and repair).

N-Sea offers survey and inspection services which help assess the state of maritime infrastructure assets (oil and gas platforms, pipelines, cables, wind farms, etc.) during the entire lifecycle.

N-Sea is a full service underwater repair and maintenance company. Upon request, a diving team can be mobilized swiftly and a ROV spread can be arranged for general or damage-specific underwater inspection.

An ideal partner for your installation and construction needs, N-Sea provides a broad range of general and specialist support services.

N-Shore offers a wide variety of civil waterworks’ services. Our projects include sheet piling and infrastructural works such as bridges, overpasses and locks.You can count on N-Shore to manage and safely execute your underwater civil engineering and overpressure projects.

N-Seatec Subsea Systems B.V. provides worldwide technical solutions and services to clients in various sectors among which on-and offshore contracting, dredging, shipbuilding and government.


Subsea Expo – Aberdeen &