Babcock International Group is a holding company. Through its subsidiaries, Co. operates in four sectors: Marine, which provides an array of marine and naval engineering services; Land, which provides fleet management and training for customer-owned defense, emergency services, global airport and commercial vehicle fleets, as well as engineering services and technical training for customers worldwide; Aviation, which delivers an array of engineering services to defense and civil customers; and Cavendish Nuclear, which delivers nuclear engineering on nuclear decommissioning programs and projects across the U.K., as well as nuclear engineering services in training and operation support.