NOS, S.G.P.S., S.A. together with its subsidiaries, engages in the telecommunications and entertainment business.. It offers cable and satellite television, voice and internet access, mobile broadband internet access and mobile voice; and voice over internet protocol services. The company is involved in publishing and sale of video grams; advertising on pay-TV channels; operation of cinemas and mobile communications network; distribution of films; production of pay-TV channels; datacentre management; licensing; and provision of engineering and consultancy services in information systems. In addition, it engages in the negotiation, acquisition, purchase, and distribution of content rights and other multimedia products; publishing and selling videograms; distributing films; acquiring/negotiating rights for pay-TV and video-on-demand; cinema exhibition and distribution; sale of DVDs and insurance; and provision of security solutions. Further, the company invests in and supports the development of companies that commercialize technologies and products; ownership, management, and exploitation of intellectual property; supply and marketing of electronic communications products and equipment; distribution of television and radio programme; and provision of accounting, logistical, administrative, financial, tax, human resources and any other services. Additionally, it is involved in demonstration, dissemination, and technology transfer and training activities; import, distribution, exploitation, commercialization, and production of audiovisual products; design, construction, management, and operation of electronic communications networks, and related equipment and infrastructures; buying and selling, renting, operating, purchase, and sale of property and commercial establishments; development and construction of buildings, planning, urban management, studies, construction and property management. The company was incorporated in 1999 and is headquartered in Lisbon, Portugal.