First Interstate BancSystem, Inc. is a financial holding company headquartered in Billings, Montana. It is the parent company of First Interstate Bank, a community bank with locations throughout 14 states within the Western and Midwestern United States.[1] It is the largest bank based in Montana, as measured by total assets.[2]
History
First Interstate Bank was established in 1968 when its founder, Homer Scott, Sr. purchased the Bank of Commerce in Sheridan, Wyoming. Scott incorporated the company in Montana in 1971 and over the next ten years acquired two more banks and established six de novo banks in Montana and Wyoming.[1]
In 1984, the company entered into a franchise agreement with First Interstate Bancorp