The global telecom managed services market size is expected to grow from USD 11.90 billion in 2017 to USD 22.58 billion by 2022, at a CAGR of 13.7 percent. Managed services is a common phenomenon for CSPs to move their CapEx model to OpEx model in order to achieve operational efficiency in business processes. It also helps CSPs to focus on their core business activities and take a new role in the value chain with a new business model. In managed services, enterprises outsourced their business operation specifically services related to ICT ecosystem on service level agreements (SLA). It basically includes maintenance and operation of the day-to-day business processes of enterprises network infrastructure and services. The major vendors in the telecom managed services market are Amdocs (US), AT&T (US), CenturyLink (US), Cisco Systems, Inc. (US), Comarch S.A. (Poland), Ericsson AB (Sweden), GTT Communications, Inc. (US), Huawei Technologies Co., Ltd. (China), IBM (US), NTT Data (Japan), Sprint.com (US), Tech Mahindra (India), Unisys (US), and Verizon (US).