The World Bank Group is a multilateral development institution that provides financial and technical assistance to developing countries. It consists of five organizations: the International Bank for Reconstruction and Development (IBRD), the International Development Association (IDA), the International Finance Corporation (IFC), the Multilateral Investment Guarantee Agency (MIGA), and the International Centre for Settlement of Investment Disputes (ICSID).

The IBRD provides loans, guarantees, and advisory services to middle-income and creditworthy low-income countries. The IDA provides grants and concessional loans to the poorest countries. The IFC is a private sector arm of the World Bank Group that provides financing and advisory services to private sector companies in developing countries. MIGA provides political risk insurance and credit enhancement guarantees to investors in developing countries. ICSID provides a forum for the settlement of investment disputes between investors and governments.

The World Bank Group's mission is to reduce poverty and promote sustainable economic growth in developing countries. It works with governments, civil society organizations, and the private sector to achieve this goal. The World Bank Group is headquartered in Washington, D.C., and has offices in over 100 countries.