Bouygues is a global industrial group engaged in designing, building and operating structures in public and private buildings, transportation infrastructure and energy and communication networks. Co. operates in three sectors - Construction (Bouygues Construction, Bouygues Immobilier and Colas), Media (TF1) and Telecom (Bouygues Telecom). Construction is engaged in the design and maintenance of projects in the areas of building, civil works, energies and services; Media offers activities covering the audiovisual sector; and Telecom offers mobile broadband services and prepaid card services for smart phones, as well as a range of services including telemessaging, voice mail and WAP

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.

Engie is an industrial group, based in France, active in the fields of gas, electricity, energy services and the environment. Co. is an energy provider across the entire energy chain, in electricity and in natural gas, including: purchase, production and commercialization of natural gas and electricity; transport, distribution, management and development of major natural gas infrastructures; design and commercialization of energy services and environment-related services. Co.'s activities are conducted through five segments: Energy Europe, Energy International, Global Gas and LNG, Infrastructures, and Energy Services.

Spie is a provider of electrical engineering and IT services and an infrastructure and building contractor. Co. helps to design, finance, manage and implement an array of projects ranging from high-speed TGV and conventional rail lines to metros and light rail systems. In addition, Co. offers telecom and information network services. Through the Commercial Segment, Co. is engaged in construction and renovation projects. Co. also offers wired building services as well as multi-disciplinary industrial maintenance and facilities management solutions.

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.