The Global Business Process Outsourcing Market Size Expected to Grow from USD 405.11 Billion in 2023 to USD 615.76 Billion by 2033, at a CAGR of 4.28% during the forecast period 2023-2033. The global business process outsourcing market refers to the industry in which businesses contract out a range of business functions, including finance and accounting, customer service, IT, human resources, and other back-office operations, to third-party service providers, either domestically or globally.