James Fisher and Sons plc operates as an engineering services company worldwide. It operates through three segments: Energy, Defence, and Maritime Transport. It offers oil and gas solutions, such as decommissioning, digital twin, diving and remotely operated vehicle (ROV), heat suppression, hazardous area design and engineering, lifting and handling, marine, methanol fire detection, ship-to-ship transfer, offshore support, and subsea services, compressors and breathing air systems, diving systems and equipment, offshore monitoring systems, and ROVs. The company also provides renewable solutions, including balance of plant, blade inspection and repair, cathodic protection replacement, digital operational planning and asset management, diving and ROV, excavation and trenching, high voltage testing, terminations, operations and maintenance, installation and commissioning, noise attenuation, subsea survey and inspection, subsea repair and maintenance, structural monitoring, and unexploded ordnance services, as well as mooring and fendering systems. In addition, it offers ports and terminals solutions, such as inspection and monitoring, ship agency, and subsea services, as well as mooring and fendering equipment and services; transport and infrastructure solutions, including decommissioning, design and engineering, digital asset management, fuels infrastructure, engineering, inspection and monitoring, marine, ship and crew management, structural monitoring, and vessel chartering services; and solutions for defence, which include submarine rescue, special operation, naval vessel refueling, and radiological monitoring services, as well as submarine platforms and emergency oil spill response vessels. James Fisher and Sons plc was founded in 1847 and is based in Barrow-in-Furness, the United Kingdom.