Alten is a holding company. Through its subsidiaries, Co. operates in three areas: Engineering and Technology Consulting (ETC), Telecoms Networks and Multimedia, and Information Systems (NTIS). Through the Engineering and Technology Consulting (ETC) segment, Co. studies and designs technology products for technical divisions in industry and telecoms. The Telecoms Networks and Multimedia segment focuses on Product design, Architecture, deployment, and operation of networks. Lastly, the IT systems segment comprises Applications and software development, and Infrastructure and Telecoms (Applications, systems and networks Corporate telecommunications).

Deutz is the parent company of DEUTZ Group, and is engaged as an independent manufacturer of compact diesel engines for both on and off-road use. Co. develops, designs, produces and sells diesel engines that are cooled by water, oil or air. Co.'s operating activities are divided into: the DEUTZ Compact Engines segment, which comprises liquid-cooled engines with capacities of up to eight litres; and the DEUTZ Customised Solutions segment, which focuses on air-cooled engines and large liquid-cooled engines with capacities of more than eight litres, and also supplies reconditioned parts and engines. Co. also repairs, maintains and services vehicles and machines fitted with DEUTZ engines.

ESKER and its subsidiaries are engaged in the design and production of software applications. Co. operates corporate resource access software such as applications and databases for workstations. Co. has three major product groups: Host Access, DeliveryWare and Fax Server. Host Access products allows users to access applications and databases stored on different servers from their own workstations. DeliveryWare responds to the need of companies for automatic management document delivery. Fax Server allows the user to send a fax directly from their workstation.

Genfit is a biopharmaceutical company engaged in the discovery and development of drugs and biomarkers in therapeutic areas of high unmet need due to the lack of effective treatments or diagnostic tools and/or due to the increasing number of patients worldwide. Co. concentrates its research and development efforts to participate in the commercialization of treatment solutions and diagnostic tools to fight certain metabolic, inflammatory, autoimmune or fibrotic diseases affecting especially the liver (such as non-alcoholic steatohepatitis or "NASH").

Groupe Crit provides HR solutions to companies. Co.'s activities are divided into three segments: Temporary employment and Recruitment; Airport services; and Other services. In the Temporary employment and Recruitment segment, Co.'s offering includes temporary employment, permanent placement, secondment, outsourcing, training and consulting. The Airport services segment includes all services performed on an airplane from its landing to its take-off such as services to passengers and airplanes. The Other services segment comprises services in engineering and maintenance, and miscellaneous activities. At Dec 31 2010, Co. operated 431 branches, and was the partner of more than 25,000 companies.

Kalray SA is a France-based semiconductor and software company that develops and sells manycore processors. Its products include the Multi-Purpose Processor Array (MPPA) processor architecture (a family of programmable silicon devices), a software development kit, development platform and reference board. The Company provides manycore processors for low to medium volume embedded and acceleration applications. The Company's technology is the combination of the MPPA processor architecture and a software parallel programming solution MPPA ACCESSORE. Its products target the embedded computing market, including the imaging, medical and industrial sectors, telecommunication infrastructures, data security and network appliances, and transport and industrial automation.

LNA Sante SA Formerly known as Le Noble Age. LNA Sante SA, formerly known as Le Noble Age SA is a France-based company that owns and operates retirement homes and complexes for elderly residents. The Company's residences provide care and assistance for elderly people with a variety of needs, from those with a high level of independence, to those who are completely dependent. LNA Sante SA is also engaged in real estate operations. The Company has residences in France and Belgium. LNA Sante SA operates through its several subsidiaries, including Le Parc de Diane Sarl, Institut Medicalise de Mar Vivo, Gerhome, Residence le Point du Jour and the home healthcare service provider ARAIR Assistance, as well as ARAIR Group's support and training services, among others.

Savencia is a transformer of milk centered on cheese, dairy specialties, and on dairy ingredients. Co.'s operations are divided into two segments: the Cheese Products segment and the Other Dairy Products segment. In the Cheese Products segment, Co. manufactures and distributes cheeses and cheese specialties. In the Other Dairy Products segment, Co. manufactures and distributes modern butters and long-life creams both for final consumers and professional users, manufactures technical butters and specialized dairy proteins for industrial markets, and manufactures aseptically packaged products.