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.

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.