Nepal Investment Bank Limited (NIBL), established in 1986 as a joint venture between Nepalese and French partners was initially named Nepal Indosuez Bank Ltd. The French partner holding 50% of the capital of Nepal Indosuez Bank Ltd. was Credit Agricole Indosuez, a subsidiary of one of the largest banking group in the world.

Later in 2002, a group of Nepalese companies comprising of bankers, professionals, industrialists and businessmen acquired the 50% shareholding of Credit Agricole Indosuez in Nepal Indosuez Bank Ltd. and accordingly named the bank; Nepal Investment Bank Ltd. (NIBL). After 36 successful years of operation a new phase beckoned for NIBL. Following Nepal Rastra Banks (NRB) policy to reduce the number of commercial banks across the country, Nepal Investment Bank Ltd. signed a Memorandum of Understanding (MoU) with Mega Bank Nepal Ltd. to enter into a merger on June 10th 2022.

Mega Bank Nepal Ltd. started its operations on July 23rd 2010 and had completed 12 years of operation in the banking sector with its total paid up capital amounting to NPR 16.12 billion. Nepal Investment Bank and Mega Bank Nepal started joint operations on January 11th 2023 by the unifying name of; Nepal Investment Mega Bank Ltd. (NIMB).

As a merged entity Nepal Investment Mega Bank Ltd will continue to provide exemplary banking services to its ever increasing volume of clientele thus significantly contributing to Nepals financial sector.