Huawei Technologies Co. Ltd. is a Chinese multinational networking and telecommunications equipment and services company headquartered in Shenzhen, Guangdong. It is the largest telecommunications equipment manufacturer in the world, having overtaken Ericsson in 2012. Huawei has over 170,000 employees as of September 2015, around 76,000 of whom are engaged in research and development (R&D). Its products and services have been deployed in more than 140 countries and it currently serves 45 of the world's 50 largest telecoms operators.