Telefonica is engaged in the provision of public or private telecommunications services, including ancillary or complementary telecommunications services or related services. Co.'s fixed business includes: traditional fixed telecommunication services, Internet and broadband multimedia services, data and business-aplications services, and wholesale services for telecommunication operators. Co. also provides a range of mobile and related services and products to consumer and business customers, including mobile voice services, value added services, mobile data and Internet services, wholesale services, corporate services, roaming, fixed wireless, and, trunking and paging.

United Internet AG is a Germany-based Internet service provider (ISP) and holding company of the United Internet Group. The Company's products and technical services are divided into two key segments. The Access segment comprises narrowband, broadband and mobile access subscriptions, including the corresponding applications. The Applications segment includes such applications as home pages, e-shops, Personal Information Management applications, group work, online storage and office software. The Application segment also includes the operations of the Company's brands Sedo and affilinet, which serve customers performance-based advertising and sales possibilities. The Company's brand portfolio also includes GMX, WEB.DE, 1&1, united-domains, Fasthosts and InterNetX. In addition, the Company develops Internet based applications, such as cloud applications. The Company acts primarily via its wholly owned subsidiary 1&1 Internet AG, and Sedo Holding AG, in which it holds a majority stake.