Ericsson provides services, software and infrastructure in mobility, broadband and the cloud that enable the communications industry and other sectors to do better business, increase efficiency, improve their users' experience and capture new opportunities.Year founded: 1876Revenue: $26.8 billion (2014)NASDAQ: ERIC

Bharti Airtel Limited is a leading global telecommunications company with operations in 20 countries across Asia and Africa. Headquartered in New Delhi, India, the company ranks amongst the top 3 mobile service providers globally in terms of subscribers. In India, the company's product offerings include 2G, 3G and 4G wireless services, mobile commerce, fixed line services, high speed DSL broadband, IPTV, DTH, enterprise services including national & international long distance services to carriers. In the rest of the geographies, it offers 2G, 3G and 4G wireless services and mobile commerce. Bharti Airtel had over 356 million customers across its operations at the end of February 2016.