In 1897, Elias Mujica opened an agency at the Jirón de la Unión in Lima's historic centre under the name of Banco Internacional.

In 1934, branches were opened in Chiclayo and Arequipa, and later expansions included Piura, Sullana and other places in Peru.

Part of the expansion strategy at that point was to open agency branches in supermarkets so customers could shop and bank at the same time.

In 2007, Interbank opened a business agency in Shanghai, China in order to facilitate negotiations between Chinese and Peruvians.

[3] Interbank provides ATM services under the GlobalNet brand which accept debit and credit cards from around the world, as well as permitting cash deposits.