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).

Eramet is a mining and metallurgical group, which specializes in the extraction, production and marketing of non-ferrous metals, their chemical derivatives, alloys and superalloys, and parts. Co.'s operations are divided into three divisions: Nickel division which focuses on nickel and its derivative applications; Manganese division which focuses on manganese alloys, manganese chemical derivatives and provides recovery and recycling services of metals contained in oil-industry catalysts, electric batteries and acid solutions; and Alloys division which produces and sells special high-performance steels, superalloys and pre-machined parts based on these materials or aluminium and titanium.

Groupe Gorge is a holding company engaged in three areas of operation: Smart Safety Systems (develops Smart Safety Systems designed to operate in hostile and constrained environments for civil and defense sectors); Protection in Nuclear Environments (protection solutions in nuclear environments: shielding by partition systems in nuclear power stations & protection against radiation for staff working in nuclear environments); and Industrial Project Services (industrial projects and maintenance, creating production tools and turnkey operation areas, projects and services in industrial robotics, iron works, automation, 3D printer offerings, electricity and fire fighting systems).

Infotel is a group of consulting companies and a global software vendor. The Group has developed a complete service offering and a range of software for enterprise servers. Co. provides consultancy, analysis, IT system audits, third-party application maintenance and software testing solutions. Co. designs and implements, as service contracts or service desk, management projects by implementing advanced methods and technologies, from mobile technology to databases. Co. has developed software to assist customers in areas such as DB2® (security, performance and management), data management and archiving, web-enables or quality applications and relational database performance.

Mersen produces materials and electrical components intended for alternative energies, chemicals and pharmaceuticals, rail transportation, electronics and process industries. Co. divides its operations into two segments: Advanced Materials and Technologies (AMT - Materials), and Electrical Components and Technologies (ECT - Electrical). In addition, Co. produces four types of products: Electrical Applications, Electrical Protection, High-Temperature Applications, and Anticorrosion Equipment. Co. also caters to the process industries, supporting their transition towards greater energy efficiency and boasts an efficient manufacturing base with plants employing the very latest technologies.

Mgi Digital Technology SA. Mgi Digital Technology SA, formerly MGI France SA, is a France-based company that specializes in the design, manufacture, marketing and distribution of digital printers and related products. The Company offers a digital direct-to-print technology that provides four-color process printing variable data, personalization, bar codes, personal identification numbers (PINs), magnetic stripes, photos and auto numbering. The Company's portfolio of products includes MeteorDP8700XL, plastic card die cutting, JET cards, JETvarnish, UVarnish, Punchcard Pro, Presscard Pro and EnvelopExpress, among others. The Company's clients belong to commercial printing, silk screeners, plastic cards printers, newspaper and book printers, graphic art professionals and government sectors. In September 2013, Mgi Digital Technology SA announced that it has acquired a 100% stake in CERADROP, a company specialized in the design and commercialization of professional ink jet printing equipment for printed electronics.

Pharming is a specialty pharmaceutical company developing products for the treatment of rare diseases and unmet medical needs. Co.'s lead product, RUCONEST® (conestat alfa) is a recombinant human C1 esterase inhibitor approved for the treatment of acute Hereditary Angioedema (‘HAE') attacks in patients in Europe, the U.S., Israel and South Korea. The product is available on a named-patient basis in other territories where it has not yet obtained marketing authorization. RUCONEST® is distributed in Argentina, Colombia, Costa Rica, the Dominican Republic, Panama, and Venezuela by Cytobioteck, in South Korea by HyupJin Corporation and in Israel by Megapharm.

Inside Secure designs, develops and sells software, silicon IP, tools and know-how to be integrated into mobile and connected devices to protect its customers' transactions, content, applications, and communications. Co. is serving markets such as: network security; IoT security; content & application protection; and mobile payment & banking. Co.'s technology protects solutions for a broad range of customers including: service providers; digital content distributors; security system integrators; device vendors; and semiconductor manufacturers.

Verneuil Finance SA Formerly known as Verneuil Participations. Verneuil Finance SA, formerly known as Verneuil Participations SA, is a France-based investment company. The Company acquires shares in companies operating in a number of sectors, including the wood, real estate hotel promotion food processing and the leisure sectors. The Group operates its businesses through Societe Francaise de Casinos and Financier Duc. Through Societe Francaise de Casinos the Company offers a number of services, such as slot machines, games, shows & entertainment and restaurant and private reservation services, among others. The Company reports the leisure sector as its main activity.