Drillisch is a holding company. Co. through its subsidiaries, is a mobile virtual network operator in Germany. The services acquired from the network operators Telekom Deutschland GmbH, Vodafone D2 GmbH, E-Plus Mobilfunk GmbH and Telefonica O2 Germany GmbH & Co. OHG are sold further to the end consumers for Co.'s own account and at rates established by Co. Co. organizes its operations into three segments: telecommunications, which includes its activities in the sector of wireless services; freenet holding, which comprises the operations of its freenet AG subsidiary; and software services, which involves activities related to the development and marketing of a workflow management software.

Bouygues is a global industrial group engaged in designing, building and operating structures in public and private buildings, transportation infrastructure and energy and communication networks. Co. operates in three sectors - Construction (Bouygues Construction, Bouygues Immobilier and Colas), Media (TF1) and Telecom (Bouygues Telecom). Construction is engaged in the design and maintenance of projects in the areas of building, civil works, energies and services; Media offers activities covering the audiovisual sector; and Telecom offers mobile broadband services and prepaid card services for smart phones, as well as a range of services including telemessaging, voice mail and WAP

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.

Freenet is a telecommunications provider in Germany. Co. provides its customers a portfolio of services and products, particularly in the field of mobile voice and data services. Co. does not operate its own network, but markets mobile communication services for the mobile network operators Telekom, Vodafone, E-Plus and O2 in Germany, under its own name and on its own account. Apart from its own network-independent postpaid, no-frills and prepaid services, Co. also provides the original network operators' tariffs. Co. operates within two segments: mobile communications and other/holding.

Gamma Communications is a communications company. Co. has two main operating segments: Indirect, which sells Co.'s products to channel partners; and Direct, which sells Co.'s products to end users in the SME, Enterprise and Public Sectors together with an associated service wrap. Both operating segments sell a combination of products and services (which is mainly voice traffic from which revenues are derived from channel partners and other carriers as well as rentals for wholesale lines) and growth products and services (which consists of IP voice traffic, rental income derived from SIP trunks, hosted IP voice systems and Gamma's hosted inbound product and data products)

Nfon AG is a Germany-based company that provides cloud-based telephone systems. Its product and service offering includes primarily NFON Cloud Telephone System, a public multi-tenant PBX delivering servicing from the cloud, as well as specialist solutions. The Company's services enable communication for customers and their employees on various devices, including smartphones, tablets, personal computers, and desk phones. Its customers range from local small businesses to international large enterprises. The Company is active in various European countries, including Germany, Austria, Switzerland, the Netherlands, Poland, Hungary, the United Kingdom, Slovenia, Slovakia, Spain, Croatia, Romania and Portugal.

Orange Belgium is a telecommunications operator in Belgium. Co. provides a range of products and services to the residential and business markets, including mobile telephony, fixed telephony, fix data, Asymmetric Digital Subscriber Line. Co.'s Belgium segment is divided into two operating units: Mobile as well as Fix voice data. Co.'s Mobile operating unit provides mobile phone equipment and services to residential and corporate customers, while Co.'s Fix voice and data operating unit provides fix voice, data and internet services to residential and corporate customers.

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.

Proximus supplies integrated telecommunications services on the Belgian market. Co.'s activities are divided into four segments: Consumer Business Unit (CBU), which sells voice products and services, internet and television, on fixed and mobile networks, to residential customers; Enterprise Business Unit (EBU), which caters to professional customers; Service Delivery Engine and Wholesale, which centralizes all the network and IT services and costs, provides services to CBU and EBU and sells these services to other telecom and cable operators; and International Carrier Services, which focuses on international carrier activities.

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 Deutschland Holding is a telecommunication company. Co. offers its consumer retail and business customers postpaid and prepaid wireless communications products, along with wireless data services using Global Packet Radio Service, Universal Mobile Telecommunications System and Long Term Evolution technology as well as Digital Subscriber Line wireline telephony and high-speed internet services. Co. markets its products and its wireless and wireline communications products as well as services via the core brand O2. Co.'s secondary brands include the brands Fonic and netzclub. Co. also markets high-speed DSL internet access and wireline telephony.

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.

Telenet Group Holding is a holding company. Through its subsdiairies and its broadband network, Co. is engaged in the provision of cable television, including television services, broadband internet and telephony services to residential subscribers in Flanders and certain communes in Brussels as well as broadband internet, data and voice services in the business market throughout Belgium and parts of Luxembourg. In addition, Co. is engaged in the provision of mobile telephony services through a mobile virtual network operator partnership with Mobistar NV.

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.

Vodafone Group provides mobile and fixed telecommunication services including: access charges, voice and video calls, messaging, interconnect fees, fixed and mobile broadband and related services such as providing televisual and music content, connection fees and equipment sales. Co. provides a range of consumer products and services including mobile, fixed voice, broadband and television, financial as well as other services to operators outside its footprint. Co. also provides a range of enterprise products and services including total communications such as mobile, fixed and a suite of converged communications services, internet of things, cloud and hosting and carrier services.