The UNCSD is a registry of suppliers available to all UN and World Bank procurement personnel, and is the main supplier database of UNDP, UNICEF, UNHCR, UNOPS and WFP. The United Nations represents a global market of approximately USD 4.6 billion annually for all types of goods and services. The UNCSD acts as a single window, through which the business community may register with the UN system, to offer goods and services to UN organisations. The database facilitates the interchange of supplier information within the UN system as information is made available to all UN organisations, and it acts as an important procurement tool to shortlist suppliers for competitive bidding.