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Former Norwegian parent company of the DOF Group, an international offshore services and supply shipping business.

Last updated August 22, 2026

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Overview

DOF ASA was the former parent company of the DOF Group, a Norwegian offshore services and supply shipping business. The group was established in 1981 and developed from a vessel-owning operation into an integrated provider for the offshore energy sector. Its activities combined ownership and operation of specialized offshore vessels with project engineering and a broad range of field services. The company's service portfolio included project management, engineering, marine survey work, remote intervention, diving operations, remotely operated vehicle services, and vessel operations. This combination allowed the group to support offshore projects across multiple stages, from marine logistics and construction support to subsea intervention and specialized engineering. Its customer and project base was linked primarily to offshore energy and related maritime infrastructure. Before the restructuring of DOF ASA, the group operated a large and diverse fleet. As of 31 March 2023, the fleet comprised more than 50 offshore vessels, including 11 platform supply vessels, 15 anchor-handling tug supply vessels, and 29 construction support vessels. These vessel categories served different operational needs: platform supply vessels transported equipment and provisions, anchor-handling tug supply vessels supported offshore towing and installation work, and construction support vessels carried out more specialized subsea and offshore construction activities. DOF's operating model was international despite its Norwegian base. In addition to its main offices in Norway, the group maintained operating centers and business units in the United Kingdom, the United States, Singapore, Brazil, Argentina, Canada, Angola, and Australia. This geographic network supported work in several offshore regions and reflected the global nature of the company's fleet and project activities. DOF ASA entered a bankruptcy process before the Norwegian courts in 2023. The restructuring resulted in the establishment of a new parent company, DOF Group ASA, on 25 May 2023. The successor continued operating the business as an integrated offshore services supplier with global operations. Accordingly, DOF ASA is best understood as the pre-restructuring corporate parent, while the continuing operating platform belongs to the reorganized DOF Group structure.

History

The DOF Group was founded in 1981 in Norway and grew as an offshore maritime enterprise serving the energy sector. Its development was based on the ownership and operation of specialized vessels, supported by technical and project capabilities that enabled it to participate in increasingly complex offshore work. Over time, the business expanded beyond basic vessel supply and transportation. Its activities came to include project management, engineering, marine surveys, remote intervention, diving, remotely operated vehicle operations, and broader vessel services. This evolution positioned DOF as an integrated offshore contractor rather than solely a shipping company. The model combined physical maritime assets with engineering and subsea expertise, allowing the group to provide services for offshore construction, field support, and intervention projects. The group also expanded internationally. Although Norway remained its principal base, DOF established operating centers and business units in the United Kingdom, the United States, Singapore, Brazil, Argentina, Canada, Angola, and Australia. The international network supported operations across global offshore markets and complemented the company's Norwegian ownership and management base. By 31 March 2023, the group operated more than 50 offshore vessels. The fleet included platform supply vessels, anchor-handling tug supply vessels, and construction support vessels. This composition reflected the breadth of its operating model: supply vessels supported offshore installations, anchor-handling vessels performed towing and positioning-related work, and construction support vessels handled more specialized offshore and subsea assignments. The corporate structure faced a major turning point in 2023, when DOF ASA entered a bankruptcy process in the Norwegian courts. The process did not end the operating business. On 25 May 2023, a new parent company, DOF Group ASA, was established. The successor structure continued the business as an integrated offshore services supplier with operations across international markets. DOF ASA therefore represents the predecessor parent-company structure, while the reorganized DOF Group represents the continuation of the operating enterprise.

  • 2023

    DOF ASA entered bankruptcy proceedings

    [1]

    DOF ASA underwent a bankruptcy process in the Norwegian courts during the restructuring of the group.

  • 2023

    DOF Group ASA established

    [1]

    On 25 May 2023, DOF Group ASA became the new parent company and continued the offshore services business under a reorganized structure.

  • 1981

    DOF Group founded

    [1]

    The Norwegian offshore services group was founded and began developing its maritime and offshore energy activities.

Products and positioning

An integrated offshore services provider combining specialized vessel ownership and operations with engineering, project management, and subsea capabilities for the offshore energy sector.

  • Offshore vessel operations

    Platform supply vessel services

    Platform supply vessels support offshore installations by transporting provisions, equipment, materials, and other supplies between shore bases and offshore facilities. They formed one of the principal vessel categories in the DOF fleet and supported the group's wider offshore logistics offering.

  • Offshore vessel operations

    Anchor-handling tug supply vessel services

    Anchor-handling tug supply vessels are specialized offshore vessels used for towing, anchor handling, and related support work around offshore installations and projects. DOF operated 15 vessels in this category as of 31 March 2023.

  • Offshore construction and subsea services

    Construction support vessel services

    Construction support vessels provide platforms for complex offshore construction, installation, inspection, maintenance, and subsea activities. They were the largest listed vessel category in the pre-restructuring fleet, with 29 vessels reported as of 31 March 2023.

  • Integrated offshore services

    Engineering, survey, diving, and remote intervention

    DOF combined vessel operations with project management, engineering, marine survey, remote intervention, diving, and remotely operated vehicle services. Together, these capabilities supported integrated offshore energy projects and subsea work rather than treating vessel chartering as a standalone activity.

Brand decisions

  • 2023

    Corporate restructuring through a new parent companyStrategy

    Background

    DOF ASA underwent a bankruptcy process in the Norwegian courts while the underlying offshore services business continued operating.

    Action taken

    A new parent company, DOF Group ASA, was established on 25 May 2023 to continue the integrated offshore services business.

    Aftermath

    The operating enterprise continued with global operations under the reorganized DOF Group structure, while DOF ASA became the predecessor corporate parent.

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