The bank's shares are publicly traded on the Nepal Stock Exchange.

It was founded in May 2008 and is licensed as an "A" class financial institution.

It was created as a merger with four financial institutions, Bhrikuti Development Bank, Pathibhara Bikas Bank, Prudential Finance Company, Clean Energy Development.

[5] In September 2016, the bank signed a joint venture agreement with the Netherlands Development Finance Company (Nederlandse Financierings-Maatschappij voor Ontwikkelingslanden, following which FMO became the single largest shareholder of the bank.

NMB Bank has been recognized as 'Bank of the Year in Nepal' for two consecutive years, 2017 and 2018 by The Banker, a service of the Financial Times, for its leading role in the country’s financial sector by using new digital technologies.