National Bank of Oman (NBO) is a banking institution based in Muscat, Oman. Established in 1973, The bank offers services that incudes retail banking, corporate banking, investment banking, and treasury and international banking. Its Investment Banking Division (IBD) offers discretionary portfolio management services, brokerage operations, asset management, distribution of mutual funds, lead management of public equity and bond issues, as well as domestic and international investment advisory services. The assets of the bank are managed by the board of directors.