Where is First Interstate BancSystem Headquarters?
Main Office Address and Global Locations

The official headquarters of First Interstate BancSystem Inc is located at 401 N 31st St, Billings, Montana, United States. This facility is situated in the downtown area of Billings, serving as the primary base for the organization's administrative and executive functions. The building occupies a prominent position within the local business district, reflecting the company's long-standing history since its incorporation in 1971. As a significant structure in the city, the site accommodates various departments responsible for the oversight of the company's regional banking network. The physical layout of the premises is designed to support the daily operational requirements of a large-scale financial institution, ensuring that staff have the necessary infrastructure to manage complex banking services. This location acts as the operational heart of the company, coordinating the wide array of services provided to its diverse client base. From this command center, leadership oversees the strategic direction of the bank, including the management of commercial loans, agricultural financing, and investment services. The Billings office serves as the central point for corporate governance, regulatory compliance, and the support of the company's various branch operations across the country. By housing key executive and administrative teams, the facility ensures that the company maintains consistent service standards for its customers in the agriculture, healthcare, and real estate sectors. This strategic core remains essential to the company's ability to deliver reliable financial solutions while managing its extensive portfolio of assets and client relationships.