Siem Offshore Contractors
Our Ships. Our People. Our Vision.
Your Solution.
Learn more about what we do
  • Siem Offshore Contractors Signs Contract

    13. July 2017 - SOC Signs Contract for the Provision of Termination and Testing Services with JDR Cable Systems for the Beatrice OWF

    Continue reading
  • Siem Offshore Contractors invests in Ideol

    06. June 2017 - Siem Offshore Contractors invests in floating offshore wind farm developer Ideol

    Continue reading
  • Siem Moxie to sparkle on the Thames

    01. June 2017 - Don’t miss: The number one walk to work Installation Support Vessel Siem Moxie to sparkle on the Thames @ Offshore Wind Energy 2017 London

    Continue reading
  • 1057
    submarine cables installed
  • 92585
    walk to work
    personnel transfers
  • 305
    wind turbine generators
    connected and counting

Leading the way in cable installation innovation

Siem Offshore Contractors is a leader in submarine cable installation, repair and maintenance serving the global offshore renewable energy and oil and gas sectors as well as utility markets since 2003.

We combine two decades of in-house cable installation experience with best practice and latest vessel technology to operate in harsh environments 24/7 minimising weather delays. Learn more about us

Offshore Wind Farm inner array grid cable installation on the Nordsee One OWF project as executed by Siem Offshore Contractors during the summer of 2016. The submarine cable installation was performed using the leading Siem cable installation Duo (Siem Aimery - Cable Lay Vessel and Siem Moxie - Installation Support Vessel).