Harland & Wolff Group Holdings Plc, a multisite fabrication company, provides offshore and maritime engineering services. It offers technical services ranging for consultancy, basic design, and detailed engineering to through-life support; and fabrication and construction, and repair and maintenance services. The company also provides in service support; conversion services ranging from initial feasibility studies and detail design through to fabrication and lifetime support; and decommissioning services. It serves clients in oil and gas, defense, cruise and ferry, commercial, and renewables sectors in the United Kingdom and internationally. The company was founded in 1861 and is based in London, the United Kingdom. Harland & Wolff Group Holdings Plc is a subsidiary of InfraStrata plc.