First Interstate BancSystem, Inc. is a financial holding company headquartered in Billings, Montana. Through its principal subsidiary, First Interstate Bank, the company provides community banking services to individuals, businesses, governmental entities and nonprofit organizations.
Its products and services include personal and business deposit accounts, consumer and commercial lending, mortgage banking, treasury management, online and mobile banking, investment services, and wealth management. The bank also provides trust and fiduciary services through its wealth management operations.
Founded in 1971, First Interstate has expanded from its Montana roots through organic growth and acquisitions, including its 2022 acquisition of Great Western Bank. First Interstate Bank currently serves customers through a branch network across Idaho, Montana, Oregon, South Dakota, Washington and Wyoming. The company is led by President and Chief Executive Officer Kevin Riley.
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