Airbus is an European Aeronautic Defense and Space company whose core business is the manufacturing of commercial aircraft, civil and military helicopters, commercial space launch vehicles, missiles, military aircraft, satellites and defense systems and defense electronics and the rendering of services related to these activities. Co. organizes its businesses into the following five operating divisions: Airbus Commercial, Airbus Military, Eurocopter, Cassidian and Astrium. In addition, Co.'s Other Businesses division engages in the development, manufacturing, marketing and sale of regional turboprop aircraft and aircraft components.

Cellnex Telecom SA is a Spain-based company engaged in the wireless telecommunications (telecom) business. Its activities are divided into three segments: Broadcasting infrastructure, Telecom site rental, as well as Network services and other. The Broadcasting infrastructure division comprises distribution and transmission of television (TV) and frequency modulation (FM) radio signals, operation and maintenance (O&M) of radio broadcasting network, as well as over-the-top (OTT) radio services, among others. The Telecom site rental division provides access to wireless infrastructure, primarily through infrastructure hosting and telecom equipment co-location, mainly for mobile network operators and other wireless and broadband telecom network operators. The Network services and other division offers connectivity services for a variety of telecom operators and radio communication, among others. The Company also develops 5th generation mobile networks (5G) through Alticom BV.

Deutsche Telekom is engaged in the telecommunications services and information technology sectors. Co. operates as an integrated telecommunications provider. It is organized into four operating segments: Germany, Europe, and the United States; and Systems Solutions, as well as Group Headquarters and Shared Services. Co. provides fixed-network lines, broadband lines and mobile communications. Co. also provides customized Information and Communication Technology (ICT) solutions for corporate customers under the T-Systems brand. The Group Headquarters and Shared Services segment comprises cross-segment management functions, real estate services, and mobility solutions, among others.

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.