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).

Balyo SA is a France-based company that designs robotic navigation solutions which are installed into forklifts and allow them to automatically transport pallets. The Company's apparatus is equipped with the guidance technology called Geoguidage. The Geoguidage system is installed in a module which is attached to the forklift, and allows the vehicle to calculate its position and memorize the layout of the warehouse. Its equipment allows detection of pallets, containers and dollies; stacking pallets; read barcode; towing loads; interactions with conveyors and doors, etc; scalable setting and automatic modes, among others. The Company's products are used in logistics and in industry.

Bonduelle is active in the market of processed vegetables both within and outside the European Union. Co.'s business is made up of three activities: canned, frozen and fresh vegetables (prepared and fresh-cut). It distributes its products mostly through retail channels (large supermarkets and stores) and food service sectors (restaurants, inter-company canteens). Some of Co.'s brands are Bonduelle, Cassegrain, Frudesa and Artic Gardens. Co. is organized into two geographic regions and four business segments: Bonduelle Europe Long Life (BELL), Bonduelle Fresh Europe (FRESH), Bonduelle Americas (BAM), and Bonduelle Development (BDV).

Claranova SA, formerly Avanquest SA, is a France-based holding company engaged in the technology industry. The Company operates through three businesses including Avanquest Software, that develops, publishes and markets Personal Computer (PC) software products in several categories, including system utilities, home graphics, digital imaging and small business solutions; the PlanetArt business operates a print-on-demand platform, which features five brands covering both Website and mobile application technologies. Among its applications is FreePrints, a mobile photo printing solution for iOS and Android. The Company also operates through myDevices business, which enables enterprises to design, prototype and commercialize Internet of Things (IoT) solutions through Cayenne, a drag-and-drop IoT project builder. Claranova SA offers its products and services in approximately 100 countries worldwide.

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").

Marie Brizard Wine & Spirits is a wine and spirit company which is engaged in the production and distribution of wines and spirits mainly in Europe and in the U.S.A. Co.'s products can be divided into three categories: Vodka and Spirits, Wines, and Other beverages. Co. develops a portfolio of spirit brand with in particular: Youri Dolgorouki; Sobieski; Marie Brizard; Old Lady's; Berger; “PL Polonaise”; Starogardzka; Balsam Pomorski; Krakowska; Zawisza. Co. operates geographically in Poland, Western Europe, Lithuania, Bulgaria, and Other countries.

Seche Environnement offers environmental management solutions for industrial clients or local authorities. Co. operates waste treatment and recovery facilities and develops tools to produce energy from waste. Co. also collects and sorts all types of waste, whether household or industrial, hazardous or non-hazardous. For local authorities, Co. manages household waste and other environmental concerns. Co. is engaged in thermal treatment, storage, methanization of household waste and production of alternative fuels. For industrial clients, Co. has developed products and services for handling industrial waste from waste production sites to elimination facilities.

Suez is active in each stage of the water and waste cycles. Co. is organized around three main segments: Water Europe (water distribution and treatment services, particularly under concession contracts, to individuals, local authorities and industrial clients); Waste Europe (waste collection and treatment services for local authorities and industrial clients; these services include collection, sorting, recycling, composting, energy recovery and landfilling for both non-hazardous and hazardous waste) and International (water, waste and engineering services, with a special focus on risk-management resulting from specific local environments by setting up partnerships).

Veolia Environnement provides environmental management services to public authorities, industrial and commercial services customers, and individuals worldwide. These services include the supply of water, the treatment and recovery of municipal or industrial effluent, waste collection, processing and recycling, the supply of heating and cooling services and the optimization of industrial processes. Co.'s business operations are conducted through three divisions, each specializing in a single business sector: Veolia Eau (Water), Veolia Energie (Dalkia, Energy Services) and Veolia Proprete (Environmental Services).