Eidesvik Offshore

Eidesvik Offshore is a Norwegian offshore shipping company based in Bømlo Municipality. Its business is centered on specialized vessels used in offshore energy and marine infrastructure work rather than onshore transport or conventional cargo shipping. The fleet is described as comprising platform supply vessels, anchor-handling tug supply vessels, subsea vessels, seismic vessels and a cable-laying ship. These vessel categories support a range of activities, including the movement of personnel and equipment to offshore installations, anchor-handling and towing duties, subsea construction and intervention, marine geophysical surveying, and the installation or maintenance of submarine cables. The company has a distinctive visual identity: its vessels are painted orange, and most carry names beginning with “Viking.” This naming and livery convention gives the fleet a recognizable presence in the offshore-service market while also distinguishing the company from many larger diversified shipping groups. Eidesvik Offshore is publicly traded on the Oslo Stock Exchange, while Kristian Eidesvik is reported to control approximately two-thirds of its ownership. Eidesvik also controls Wilson, a separate short-sea shipping company, although Eidesvik Offshore’s own operating focus is offshore shipping and related marine services. Eidesvik’s fleet profile spans both traditional offshore supply work and technically demanding specialist operations. Supply vessels provide logistics and support for offshore installations, while subsea and seismic vessels address projects requiring specialized equipment, survey capability and offshore construction support. The company also has a presence in cable-laying through its dedicated cable-laying vessel, linking its activities to offshore wind, telecommunications and other marine infrastructure markets where subsea cables are required. Recent activity has emphasized lower-emission marine propulsion and the energy transition. In August 2024, Eidesvik Offshore signed an agreement with Wärtsilä for equipment connected with converting an offshore platform supply vessel to ammonia operation. In February 2025, Eidesvik, Agalas and Reach Subsea began construction of a construction support vessel intended for subsea and offshore-wind operations. The vessel is being built at Sefine Shipyard in Turkey and is designed to use methanol as fuel. These projects indicate an effort to adapt the fleet and service offering to offshore markets increasingly shaped by emissions reduction, subsea infrastructure and offshore wind development.

Eidesvik Offshore is a Norway-based specialist shipping company whose activities are organized around vessels serving offshore energy and marine infrastructure projects. The company operates from Bømlo Municipality and is listed on the Oslo Stock Exchange. Its fleet is not limited to one vessel type: it includes platform supply vessels and anchor-handling tug supply vessels for offshore logistics and marine support, subsea vessels for underwater construction and related work, seismic vessels for geophysical surveying, and a cable-laying vessel for subsea infrastructure projects. This combination gives Eidesvik a broader operating profile than a conventional offshore supply operator. Supply vessels support offshore installations by carrying equipment, stores and other cargo, while anchor-handling vessels perform more specialized towing and anchoring tasks. Subsea and seismic vessels serve projects requiring technical equipment and specialist marine crews. Cable-laying capability extends the company’s relevance to subsea power, telecommunications and offshore energy infrastructure. The company’s vessels share a recognizable orange livery, and most use names beginning with “Viking,” creating a consistent fleet identity. Ownership is associated with Kristian Eidesvik, who is reported to own approximately two-thirds of Eidesvik Offshore. He also controls Wilson, a short-sea shipping company, but Eidesvik Offshore remains focused on offshore and specialist marine services. The company’s public listing places it within Norway’s capital-market and maritime-industry ecosystem while its operations are directed toward international offshore projects. The more recently documented phase of the company’s development has involved marine-fuel transition and new offshore construction capacity. In August 2024, Eidesvik signed a contract with Wärtsilä concerning equipment for the conversion of an offshore platform supply vessel to ammonia fuel. Ammonia propulsion is intended to reduce reliance on conventional marine fuels, although the available reference does not provide technical specifications, delivery timing or operating results for the conversion. In February 2025, Eidesvik joined Agalas and Reach Subsea in starting construction of a construction support vessel. The project is intended to serve subsea and offshore-wind operations, fields in which demand for specialized vessels is linked to the expansion and maintenance of marine infrastructure. Sefine Shipyard in Turkey is building the vessel, which is designed to use methanol as fuel. Together, the ammonia-conversion and methanol-vessel projects show the company pursuing both fleet decarbonization and participation in offshore-wind and subsea growth markets. The available reference material does not establish the company’s founding year, founding individual, detailed financial history, full management roster, or a complete chronology of earlier fleet acquisitions and contracts. Those areas therefore remain unspecified in this dossier rather than being inferred.

• 2025

  Construction support vessel project begins

  [1]Eidesvik Offshoreen.wikipedia.org

  Eidesvik, Agalas and Reach Subsea began building a construction support vessel for subsea and offshore-wind operations at Sefine Shipyard in Turkey. The vessel is intended to use methanol as fuel.

• 2024

  Ammonia-fuel vessel conversion agreement

  [1]Eidesvik Offshoreen.wikipedia.org

  Eidesvik Offshore signed a contract with Wärtsilä for equipment to convert an offshore platform supply vessel to ammonia operation.

A Norwegian specialist offshore vessel operator combining supply, subsea, seismic and cable-laying capabilities, with recent investment in ammonia- and methanol-fueled vessels for offshore energy-transition markets.

• Offshore supply vessels

  Platform supply vessels

  Vessels used to provide logistical support to offshore installations, including the movement of supplies, equipment and other operational cargo. One such vessel is identified in the company’s recent fleet-transition activity as a candidate for conversion to ammonia fuel.

• Offshore support vessels

  Anchor-handling tug supply vessels

  Specialized offshore vessels combining supply capability with anchor-handling and towing functions. They support the positioning and servicing of offshore assets and other marine operations requiring substantial handling capability.

• Subsea support

  Subsea vessels

  Specialist vessels supporting underwater construction, inspection, intervention and related subsea work. They form part of the company’s service offering for offshore energy and marine infrastructure projects.

• Marine geophysical surveying

  Seismic vessels

  Vessels used for offshore seismic and geophysical surveying. Their work supports the collection of marine subsurface data for offshore energy and related exploration or infrastructure applications.

• Subsea infrastructure

  Cable-laying vessel

  A dedicated vessel for installing or supporting the installation of submarine cables. This capability connects Eidesvik’s fleet to offshore power, communications and other subsea infrastructure projects.

• Offshore construction · 2025

  Construction support vessel

  A vessel under construction for subsea and offshore-wind operations. The project is being developed with Agalas and Reach Subsea at Sefine Shipyard in Turkey and is designed to use methanol as fuel.

• 2025

  Develop a methanol-fueled construction support vesselProduct launch

  Background

  Subsea and offshore-wind projects require specialized construction and support vessels, while operators are exploring lower-emission fuels.

  Action taken

  Eidesvik partnered with Agalas and Reach Subsea to begin construction of a construction support vessel at Sefine Shipyard in Turkey, designed to use methanol as fuel.

  Aftermath

  The reference identifies the start of construction but does not provide a delivery date, final specifications or operating results.

  Source

• 2024

  Proceed with ammonia conversion of an offshore supply vesselStrategy

  Background

  The offshore shipping sector is facing pressure to reduce emissions and adopt alternative marine fuels.

  Action taken

  Eidesvik signed a Wärtsilä contract for equipment to convert an offshore platform supply vessel to ammonia operation.

  Aftermath

  The available reference confirms the agreement but does not report the conversion’s completion, commercial deployment or financial outcome.

  Source

1. 1Eidesvik Offshoreen.wikipedia.org