IT outsourcing (as a part of an outsourcing definition) is the use of external service providers to deliver effectively IT-enabled business process, application service and infrastructure solutions for business outcomes. According to the latest statistics in 2018, the global outsourcing market amounted up to $85.6 billion. The amount is impressive, but in 2014 it was much higher — $104.6 billion. Why do businesses decide to hire outsourcing companies? Companies all over the world outsource various business operations.