


Subsea Cables
Marine Salvage & Wreck Removal
Marine & Commercial Diving
The Company
Facilities
Marine Salvage, Cargo Salvage & Preservation, Rescue at Sea, Firefighting, Offshore Towage & Support, Heavy Lifting Operations & Oil Spill Response, Pollution Prevention, Control & Waste Management of Hazardous Materials for all kind of Vessels, Onshore & Offshore Facilities, including Oil Terminals, Refineries, Shipyards, Recycling Yards, Pipelines, Power Stations, Ports and Marinas, in Accordance with relevant Legislation. Emergency Response Preparedness & Consultancy, IMO Training for Marine Environment Protection, Techniques for Floating Oil Booms Deployment, Use of Absorbent Materials, Skimmers, Pumps, etc.
Thalassa Holdings provides comprehensive solutions in ship maintenance, repairs, and technical consulting following marine accidents. With a multidisciplinary team of naval engineers, surveyors, and maritime specialists, we ensure vessels return to operational condition with safety, compliance, and efficiency as top priorities.
Power & Fiber Optic Cable Shore End Landing, Installation, Repair, Maintenance, Protection, Engineering & Design, Survey, BMH Construction, Seabed Trenching & Mapping, HDD Studies, Unexploded Ordinance (UXO) Detection, Clearing of Trenching Routes & ROV Operations, Marine Hydrographic Survey, Bathymetry, Single-Multi Beam & Side Scan Sonar (SSS).
Inspection, Maintenance & Repair to Refineries, Cathodic Protection Studies, Yokohama SEAFLEX Marine Hoses, Multi-Buoy Mooring/Anchoring System, Steel & Concrete Dock/Jetty Pillars, Production & Semi-Submersible Platforms, Marine Risers, Jack-Up & Offshore Drilling Rigs, Wellheads & Subsea Manifolds/PLEM, Pipe-Laying & Trenching Barges, Pigging & SPM/SBM, (including Surface Oriented, Saturation Diving & ROV Operations).
Marine Excellence
Offshore Solutions | Subsea Operations
Diving, Salvage & Cable Expertise
Design, Construction & Installation of Special HP Hydraulic Tools & Structures (Valves, Cylinders, Hand, Foot, Electric, Air, Diesel Driven Pumps, Crimping Tools, Cable Press & Cutters, etc.) Design, Construction & Installation of Hydraulic Cable Chute, Platform, Traction Wheel, Winch System, Cable Engine, Turn Tables. Design, Construction & Installation of HP HPU, Hydraulic Hoses & Motors, Capstans, Windlass, A-Frame, LARS, Jack Up, Spud Cans, etc. Heavy Duty Special Constructions. Mechanical & Electrical Repairs for Cranes, Diesel Engines, Pannels, etc. Welding & Cutting Works for Pipelines, Steel Structures, Cofferdams, Manholes, etc.
A Few words about Thalassa Holdings
THALASSA HOLDINGS was established in Piraeus in 2021, in order to cover a wide range of Marine & Commercial Diving Services, as per
Offshore & Maritime Industry requirements, as well as to cover the needs of its Clients around the globe, following HIRA guidelines &
HSE/IMCA code of practice & to provide Marine & Diving expert assistance to any Project worldwide.
THALASSA HOLDINGS is also managing a number of different companies, in order to expanding the range of the activities, reducing the risk, improving the assets & investing to the new technologies, always by protecting the marine environment and the property at sea.