Holyhead Boatyard Group of Companies Design, construction, refit and repair of Patrol Craft, Pilot Boats, Workboats, Fast Assault Craft, Fire Boats, Tugs and Crew Boats up to 24m. Operators of shallow draft tugs multi-purpose workboats, and crew transfer vessels used in support of the oil, pipe laying, wind farm and dredging sectors. Holyhead Marine and Holyhead Towing Co are wholly owned subsidiaries of Holyhead Boatyard Ltd Registered Office: Newry Beach Yard, Holyhead, Anglesey, LL65 1YB. Company Registration No: 0724907