Satif OA Satif Ouvrages d’Art (civil engineering) is a specialist of underwater inspections and bathymetric surveys. The company posts annual sales of €1m. Each of its two inspection teams, made up of 3 divers (advanced divers class II), one of whom is a qualified inspector, are operational across metropolitan France. The firm’s engineering and design department employs 6 (5 designers reporting to a head of department). Its core activity is the regular supervision of engineering structures and dams and can be called upon to carry out surveys at short notice (results of flooding, minor shipping accidents, subsidence of foundations, etc.), In 2013, Satif OA carried out surveys of the underwater foundations of 800 road and rail structures for their operators.