Holyhead Marine Services LtdHMS are specialists in the design, construction and refit of vessels for customers such as the Royal National Lifeboat Institution, Ministry of Defence and other government agencies as well as governments and commercial customers worldwide.
Turbine Transfers LtdTT operates fast catamarans that transfer personnel and equipment between the shore and wind turbines. The fleet includes 15m, 17m, 18m, 19m, 20m, 21m, 22m, 25m, 27m and 28m versions. All the designs have a successful and proven track record on wind farms throughout Northern Europe.

As well as being robust, fast and seaworthy, the layout of the vessels has been designed with comfort and safety of passengers in mind — the boats and the technicians they carry are expected to work in challenging environments.

Long term customers from the offshore wind farm sector include Siemens, RWE NPower, Dong Energy, Centrica, Statoil, Van Oord Offshore and others.
Workboat ServicesWS is a joint venture between Fortuna and Holyhead Towing and is based out of the Falkland Islands. The company operates the landing craft 'Concordia Bay', ferrying passengers, vehicles and cargo between East and West Falkland and other nearby islands.