Asso.subsea Single Member S.A.

Asso.subsea Single Member S.A., established in 1976 and headquartered in Greece, is a leading offshore contractor specializing in subsea cable installation, protection, and seabed preparation services. The company delivers turnkey offshore engineering solutions for energy, telecommunications, and offshore wind farm projects globally. Operating a sophisticated fleet of dynamic positioning cable-laying vessels, trenching support ships, and general support vessels, Asso.subsea handles complex HVDC, HVAC, and inter-array cable operations. The firm designs and manufactures proprietary subsea burial equipment, including deep water trenchers, jetting ROVs, pre-lay ploughs, and mattress installation systems. With extensive expertise in subsea inspection, maintenance, and repair (IMR), Asso.subsea serves major Transmission System Operators (TSOs) and offshore renewable developers. Certified to ISO 9001, ISO 14001, and ISO 45001 standards, the company maintains rigorous quality and safety protocols across all marine and offshore operations. Asso.subsea continues to expand its technological capabilities and fleet capacity to support critical maritime energy infrastructure worldwide.