Marine Contractor News

(Credit:  Irish Sea Contractors)

Aventa Acquires Irish Sea Contractors to Expand Offshore Services

Aventa has acquired Irish Sea Contractors (ISC), an Ireland-based marine contractor specializing in subsea cable projects, commercial diving and marine civil engineering, as part of its strategy to expand offshore operations and installation capabilities.The acquisition combines Aventa's engineering, consulting and offshore installation activities with ISC's experience in subsea cable landfalls, nearshore installation, marine infrastructure construction and underwater inspection, repair and maintenance.ISC, based in County Wexford, has more than 40 years of experience in marine contracting

© Aventa/Irish Sea Contractors

Aventa Acquires Irish Sea Contractors

Aventa has acquired Irish Sea Contractors (ISC), an Irish marine contractor. Based in County Wexford, ISC specializes in marine civil engineering, commercial diving and subsea cable projects.For clients, the acquisition brings together engineering, planning and offshore execution within one group, helping to reduce interfaces, improve constructability and maintain continuity throughout project delivery. The combined offering covers subsea cable landfall and nearshore installation, port and harbor construction and maintenance, commercial diving, and underwater inspection, repair and maintenance.

© MacArtney

Donald Macleod Named UK and Ireland Managing Director at MacArtney

Global underwater technology provider MacArtney has appointed Donald Macleod as Managing Director of its UK and Ireland business, the company's largest operation outside Denmark.Donald spent more than six years with Dutch marine contractor Boskalis, latterly as Quality and Transformation Director for its offshore energy division. Before that, he served as the Engineering, SHEQ (safety, health, environment, and quality), and Supply Chain Director for its subsea services arm. Previously, he was Managing Director of Highland Fuels, one of Scotland's major independent fuel distributors, and

(Credit: Taihan Cable & Solution)

Taihan Cable Signs HVDC Cooperation Deals with Jan De Nul and Boskalis

South Korea's Taihan Cable & Solution has signed separate memoranda of understanding with Belgium's Jan De Nul and Dutch marine contractor Boskalis to cooperate in the high-voltage direct current (HVDC) subsea cable sector.Under the agreements, the companies plan to expand cooperation in HVDC subsea cables and related infrastructure while jointly exploring opportunities in energy transition markets.Taihan Cable said the partnerships would combine its capabilities in cable manufacturing, installation and project execution with the marine infrastructure expertise of Jan De Nul and Boskalis

William Thomson CLV (Credit: Jan De Nul)

Jan De Nul Launches Second Giant Cable Laying Vessel

Belgian marine contractor Jan De Nul has launched its second next-generation cable laying vessel (CLV), William Thomson, as it expands capacity to support growing offshore wind and grid interconnection projects.The William Thomson vessel follows the earlier launch of its sister ship Fleeming Jenkin in October 2025, with both units set to become the largest cable-laying vessels of their kind.Both vessels, launched at CMHI Haimen shipyard in China, measure 215 meters in length and has a cable-carrying capacity of 28,000 tonnes, allowing longer subsea cables to be installed in a single campaign and

Celebrating the completion of Site Acceptance Testing of the first commercial Quantum EV for client Jan De Nul (Credit: SMD)

From Trials to Cable Lay: SMD Quantum ROV Set for Fleeming Jenkin Integration

Testing (SAT) on the first of its pioneering electric subsea remotely operated vehicles (ROVs), the SMD Quantum EV, marking a milestone as the system moves toward offshore deployment. The SAT operations were carried out at DEEP Campus near Bristol.The first Quantum EV, purchased by Luxembourg-based marine contractor Jan De Nul, is expected to be integrated into Jan De Nul’s Fleeming Jenkin cable-laying vessel (CLV) ahead of commercial deployment in 2026, linking the arrival of a new electric work-class ROV platform with a new-generation CLV designed for large-scale offshore renewables work.SMD Quantum

Quantum EV ROV (Credit: SMD)

SMD Clears Electric Work-Class ROV for Deployment with Jan de Nul

company SMD has completed site acceptance testing of its electric work-class remotely operated vehicle (ROV), marking a milestone in the development of fully electric subsea systems.Testing of the SMD Quantum EV was completed at the DEEP Campus near Bristol. The vehicle, purchased by Belgian marine contractor Jan De Nul, underwent extensive endurance testing and is scheduled to be integrated into Jan De Nul’s cable laying vessel (CLV) Fleeming Jenkin ahead of commercial deployment in 2026.The Quantum EV is designed to operate for long durations in challenging conditions, reducing operational

(Credit: Jan De Nul)

Jan De Nul to Install Export Cables at Taiwan’s Offshore Wind Farm

Belgian marine contractor Jan De Nul has signed a contract with Synera Renewable Energy (SRE) for the installation of export cables on the Taiwanese offshore wind farm Formosa 4.To bring the green energy ashore, Jan De Nul will transport, install and protect 60 kilometers of subsea cables.According to the company, it was also selected as the preferred contractor for export cables on SRE’s wind farm Formosa 6, located 55 kilometers southwest of Formosa 4.Situated 20 kilometers off Miaoli County’s coast, Formosa 4 will feature 35 turbines with a total capacity of 495MW, capable of providing

(Credit: SPIE)

Van Oord Enlists SPIE Wind Connect for German Offshore Wind Job

SPIE Global Services Energy, a subsidiary of SPIE, has announced that its wind power high voltage specialized entity, SPIE Wind Connect has secured a second contract with marine contractor Van Oord.The project scope involves the termination and testing of 21, 66kV inter-array cables (IAC) on the 315 MW Windanker offshore wind farm, in the German Baltic Sea.The project is scheduled to start in the fourth quarter of 2025 and planned to be completed in the second quarter of 2026 with the termination and testing of the final IAC’s connecting the wind turbine generators with the offshore substation.

August marks the annual hydrographic e-magazine and the opportunity to highlight some of the global research underway in our world’s oceans. We explore hydrographic data, climate simulations, subsea networks and cybersecurity, camera technology, autonomous operations, sonar and survey solutions, as well as ROVs.
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