Based in Varna, Bulgaria, Aquanaut Ltd. Company operates as a specialized provider of commercial diving and underwater technical services within the maritime and hydraulic engineering sectors. Established in 1989, the company has built a decades-long history of supporting shipowners, port authorities, and industrial facilities along the Black Sea coast and the Danube River. Rather than functioning as a general ship supplier, the firm focuses strictly on complex underwater operations, maintaining a team of certified professional divers and technicians equipped to execute tasks beneath the waterline.
The core of the company’s operational portfolio addresses the critical maintenance needs of commercial vessels. Aquanaut Ltd. Company provides essential ship husbandry services designed to optimize vessel performance and fuel efficiency. These activities include the machine cleaning of ship hulls to remove marine fouling and the underwater polishing of propellers, processes that significantly reduce drag and operational costs for fleet operators. Beyond routine cleaning, the company performs intricate underwater repairs, such as stern tube bandaging for seal replacements, underwater cutting and welding, and the clearing of sea valve gratings and sea chests to ensure proper engine cooling and intake functionality.
In addition to maintenance and repair, the enterprise conducts detailed underwater inspections and surveys. Working in compliance with international standards, the company holds approvals from major classification societies to perform in-water surveys that serve as alternatives to dry-docking. These inspections utilize video and photographic documentation to assess hull integrity and structural conditions without removing the vessel from the water.
The company’s expertise extends beyond ship services into civil and hydraulic engineering. Aquanaut Ltd. Company participates in the construction and rehabilitation of port infrastructure, including the repair of quay walls, installation of underwater pipelines, and maintenance of hydro-technical structures like dams and power station water channels. Their teams have also been involved in salvage operations, recovering sunken vessels and equipment from river and marine environments. Through its diverse range of underwater capabilities, the company plays a vital role in maintaining the operational readiness and safety of maritime infrastructure in the region.
