DOF was founded in 1981 and is today an international group of companies which owns and operates a modern fleet of offshore/ subsea vessels, and owns engineering capacity to service the subsea market. The main objectives for DOF are to engage in long?term, industry-related offshore activities, further develop its position as a leading supplier of offshore services, with a focus on high quality and cost effective operations, achieve its objectives by means of a balanced chartering strategy with emphasis on long-term contract coverage, in order to ensure a conservative risk profile and satisfactory cash flow, and continue to focus on the environment and initiatives towards technical systems for environmentally-friendly vessel concepts.

The DOF group operates within three different segments in relation to strategic types of activities and vessel types. The groups technical diversified fleet consists of innovative vessels specialized for their operational purpose - Platform Supply Vessel (PSV), Anchor Handling Tug Supply Vessel (AHTS) and Construction Support Vessel/Subsea ROV Vessel (CSV). In NL, DOF Subsea provides specific offshore and subsea positioning services, equipment and personnel for offshore construction companies, as well as offshore construction support and vessels. Services include innovative software packages, subsea construction, smartwire metrology and high precision survey in subsea environments.