Bouygues SA is a France-based group that operates in two sectors: telecommunications and media, and construction. The construction division comprises three core subsidiaries: Bouygues Construction, specializing in building and public works activities, notably in the areas of electrical engineering, and facility maintenance, Bouygues Immobilier, a property development company, whose activities include the development of residential, corporate and commercial properties, and the execution of urban development schemes and Colas, engaged in the construction and maintenance of transport, urban development and leisure infrastructure. The telecommunications and media division of the Group comprises two companies: TF1, specializing in audiovisual and cinema production, the acquisition and sale of audiovisual rights, and the publishing and distribution of compact discs and digital versatile discs and Bouygues Telecom, which offers mobile telephone and broadband Internet services.