Atlantia is a holding company with subsidiaries and associates whose business is the construction and operation of motorways, airports and transport infrastructure, parking areas and intermodal systems, or who engage in activities related to the management of motorway or airport traffic.

Eiffage is a construction and concessions group. Co.'s operations are organized into five divisions. The Concessions and PPPs division is engaged in construction and operating of infrastructures under concessions and public private partnerships. Through the Construction division, Co. is engaged in building design and construction, property development and building maintenance. Through the Public works division, Co. is engaged in civil engineering, road construction, infrastructure maintenance and material production. The Energy division specializes in electrical contracting and air conditioning. Through the Metal division, Co. is engaged in metallic construction and services to industry.

Ipsos is an independent survey-based research group based in France. Co. focuses exclusively on the production, interpretation, and distribution of information gathered from individuals about their views, desires, attitudes, and behaviors. It uses two principal methods of survey-based research: Quantitative research and Qualitative research. Co. organizes its business around six areas of specialization: Advertising Research; Marketing Research; Media Research; Opinion and Social Research; and Customer Relationship/Management Research. In addition, it divides its operations into five geographical areas: Europe, North America, Latin America, Asia-Pacific, and Middle East.

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.

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.

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.

Sergeferrari Group SAS is a France-based company, which produces flexible composite materials. It designs and produces such products as performance building materials (tensile architecture, bioclimatic facade, solar protection and acoustic solutions), advanced materials (modular structures, agro-energy and environmental protection) and design & outdoor materials (yachting protection, contract and outdoor furniture, awnings and canopies, visual communication and ecolodge). Beyond products, Sergeferrari Group SAS is also committed to providing support to its customers, skilled technical resources supporting customers, application advice aiming at specified sales and suitable technical documents, by providing training to customers. It operates through Giofex.

Vinci is engaged in building, civil engineering and facilities management. Through its subsidiaries, Co. is engaged in five divisions comprising of: the Building division which provides retail solutions including construction and fit-out in both the retail and commercial sectors; the Civil Engineering division; the Air division which provides program management, engineering and construction services to customers with airport infrastructure requirements; the Technology division; and the VINCI Facilities division which provides facilities management, repair and maintenance and small works in both the private and public sectors.