Atos is an international information technology services company operating in 52 countries. Co.'s customers are sectors like Public Sector and Utilities, Telecoms and Media, Financial Services, Process Industries and Discrete Manufacturing and Consumer Products and Retail. Co. operates in seven geographical segments: Germany; France; Benelux and The Nordics; U.K. and Ireland; Atos Worldline; Central & Eastern Europe; North America; Iberia; and Other Countries. Co. delivers IT services through the following five segments: Managed Services, Systems Integration, Consulting, Worldline: ePayment Services, and Cloud & Enterprise Software.

Elis is a multi-service group in the rental, laundry and maintenance of textile, hygiene and well-being items in Europe and Latin America. Co. serves hundreds of thousands of customers of all sizes, belonging to various professional customer segments: hospitality, healthcare, industry, trade and services. Co. also has a manufacturing business carried out by two entities, Le Jacquard FranASSais and Kennedy Hygiene Products which together form one of the company's operating segments.

MTU Aero Engines manufacturers engine modules and components, and providers MRO (Maintenance, Repair and Overhaul) services for commercial aero engines. Co.'s activities range through the development, construction, testing and production of new commercial and military engines and spare parts, through to maintenance, repair and overhaul of commercial and military engines. Co.'s segments comprised of: OEM business (Original Equipment Manufacturing), which covers new commercial engines, including spare parts, and the whole of the military sector; and MRO business, which engaged in commercial maintenance activities covering the areas of maintenance and logistical support for commercial engines.