Construction & Installation

DOF Subsea’s global experience in offshore operations and innovation optimizes and streamlines subsea projects


DOF Subsea provides field development support, undertaking Construction, Construction Support, Towing, Mooring and Installation and SURF (Subsea Umbilical, Riser and Flowline) and Commissioning activities.

Our global experience in offshore operations combined with our proven track record and the latest technology, means reduced project risk, increased productivity and enhanced safety performance.

With the combined resources and experience of our two sister specialist engineering companies, CSL and Semar, DOF Subsea provides comprehensive consultancy for front-end engineering, feasibility studies, concept development, design, installation and removal of offshore and marine structures


DOF Subsea’s SURF solutions keep our clients’ facilities operating at optimal capacity. Using a  fleet of versatile Construction Support Vessels we successfully complete FPSO tow, installation, mooring and repair projects. The vessels are ideal with large deck space, 250t AHC Crane and can be fitted with an optional 250t A Frame.


With the combined resources and experience of our two sister specialist engineering companies, CSL and Semar, DOF Subsea provides comprehensive consultancy for front-end engineering, feasibility studies, concept development, design, installation and removal of offshore and marine structures