Assystem SA engages in providing engineering and technical consultancy services. The company is headquartered in Courbevoie, Ile-De-France and currently employs 7,740 full-time employees. The firm offers solutions within a number of sectors, such as Aerospace, Defence, Energy, Nuclear, Life Sciences, Infrastructure, Automotive and Transport. The firm develops the infrastructural engineering and externalized R&D services. It's activities include managing infrastructural investments, from conception to dismantling; aerospace mechanical engineering, providing technical services to aerospace, engine and automotive manufacturers and technology & product engineering, providing services in transport, defense, product hardware and software development. The firm is present Europe, North America and Asia. The main shareholder of the Company is HDL Developpement SAS. The company operates through Onyx Promavi, Batir Group, Edison Technical Recruitment Ltd, Radicon Gulf Consult, Engineering Partner Automotive Nordic AB and The Biotech Quality Group, among others.