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.

Iliad is an operator in the French internet access & telecommunications markets. Co. divides its operations into three business segments: Broadband, Traditional Telephony, and Retail Telecom. Broadband includes Internet service provider operations, hosting services, user assistance operations & operations related to the rollout of the FTTH (fiber-to-the-home) network. Traditional Telephony includes switched landline telephony (One.Tel and Iliad Telecom), directory services (mainly the ANNU reverse look-up directory accessible by Minitel, telephone, Internet and SMS text messaging) and e-commerce operations (Assunet.com). Retail Telecom offers various mobile phones & services to customers.

Infrastrutture Wireless Italiane SpA, also known as Inwit, is an Italy-based company primarily engaged in telecommunication industry. The Company is active in the operation of wireless telecom facilities and equipment, specifically those dedicated to the hospitality of radio transmission equipment, telecommunications and distribution of television and radio signals. It owns radio transmission equipment for mobile telephony networks. Infrastrutture Wireless Italiane SpA concerns mainly its activities relating to the construction and management of passive infrastructure sites, generally consist of civilian facilities, such as towers , trellises and poles, as well as technological systems, necessary to accommodate the equipment of receiving and transmitting, owned by Telecom Italy and other customers. It operates through Gestione Due Srl.

Orange provides consumers, businesses and other telecommunications operators with a wide range of services including fixed telephony and mobile telecommunications, data transmission, Internet and multimedia, and other services. Co.'s portfolio comprises business lines (fixed-line, mobile, Internet), focusing on all customer segments (small and medium-sized businesses, multinationals), and personal and professional services for home, office, travel, and mobile. Co. manages eight operating segments: France, Poland, Spain, Rest of the Europe, Africa and Middle East, Other non-controlling equity interests, Enterprise Communication Services, and International Carriers and Shared Services.

Koninklijke KPN is an integrated information and communications technology service provider. Co. provides its consumer customers data broadband services, IPTV services, mobile (voice, data and SMS) and fixed line telephony. Co. provides its business customers broadband services, mobile, fixed line and data services. Co. operates in the following segments: Consumer Mobile, which provides mobile services and products; Consumer Residential, which provides services in and around the house; Business, which provides fixed and mobile telephony services; NetCo, which includes fixed wholesale services; Belgium, which provides mobile telephony; and iBasis, which provides wholesale network services.

Telecom Italia is a telecommunications group based in Italy. Co. is engaged in the communications sector and, particularly, the fixed and mobile national and international telecommunications sector, the television sector and the office products sector. Co. operates mainly in Europe, South America and the Mediterranean Basin. Co.'s operations are organized along two operating segments: Domestic - Italy (providing telephone and data services on fixed-line and mobile networks for final customers (retail) and other operators (wholesale)); and Brazil (operates in the mobile phone, fixed telephony, in long-distance and data transmission markets in Brazil).

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.