Babcock International Group Plc engages in the provision of engineering support services to government organizations and key industries in the private sector. It operates through the following business segments: Marine, Land, Aviation, and Nuclear. The Marine segment provides through-life support of submarines, naval ships, and infrastructure; and operates an international naval support business. The Land segment offers large-scale critical vehicle fleet management, equipment support, and technical training for military and civil customers. The Aviation segment includes military flying training programs and aerial emergency services. The Nuclear segment consists of nuclear decommissioning programs and projects, nuclear engineering services in training and operation support, new build program management, design and installation, and critical safety training. The company was founded in 1891 and is headquartered in London, the United Kingdom.