Glacier Bancorp, Inc

First Federal Savings and Loan, now known as Glacier Bank (a subsidiary of Glacier Bancorp, Inc.) was founded in 1955 in Kalispell, Montana by a group of local businessmen. With a charter costing $150,000 in 1955, the founding directors raised $172,000 from 127 Flathead citizens to officially get the bank off the ground. In 1984, the bank went public as First Federal Savings Bank of Montana. Glacier Bancorp Inc. was established in 1990 as the parent company of First Federal. First Federal was then renamed to Glacier Bank in 1992.

On February 25, 2013, Glacier Bancorp, Inc. acquired Wyoming-based First State Bank, which held $281 million in assets as of December 31, 2012. On March 1, 2015, Glacier Bancorp, Inc. acquired Ronan-based Community Bank, which held $175 million in assets as of December 31, 2014.

In 2017, Glacier Bancorp merged with First Security Bank. On January 31, 2018, Glacier Bancorp acquired Columbine Capital Corp. and its subsidiary, Collegiate Peaks Bank. On March 1, 2018, Glacier Bancorp acquired Inter-Mountain Bancorp and its subsidiary, First Security Bank. On April 30, 2019, Glacier Bancorp, Inc. acquired FNB Bancorp and its wholly owned subsidiary, The First National Bank of Layton, which held $326 million in assets as of September 30, 2018. On July 31, 2019, Glacier Bancorp, Inc. acquired Heritage Bancorp and its wholly owned subsidiary, Heritage Bank of Nevada, which held $842 million in assets as of June 30, 2019.

On February 29, 2021, Glacier Bancorp, Inc. acquired State Bank Corp. and its wholly owned subsidiary, State Bank of Arizona, which held $677.6 million in assets as of December 31, 2020. On October 1, 2021, Glacier Bancorp, Inc. acquired Utah-based Altabancorp and its wholly owned subsidiary, Altabank, for $933.5 million.

On January 13, 2025, Glacier Bancorp, Inc. announced that it is acquiring Bank of Idaho Holding Co., the bank holding company for Bank of Idaho. The press release stated that it will be "Glacier's 26th bank acquisition since 2000 and its 12th announced transaction in the past 10 years." According to the Idaho State Journal, "After close of the transaction, Bank of Idaho’s Eastern Idaho branches will join Citizens Community Bank, Division of Glacier Bank. The remaining Bank of Idaho branches in Idaho’s Treasure Valley will join Mountain West Bank, Division of Glacier Bank and the branches in Eastern Washington will join Wheatland Bank, Division of Glacier Bank." The regulatory approvals were announced on April 9, 2025 and the transaction is scheduled to be completed on April 30, 2025.

Divisions

As of December 31, 2024, the Bank consists of seventeen bank divisions and a corporate division. The bank divisions operate under separate names, management teams and advisory directors and include the following:

Glacier Bank (Kalispell, Montana) with operations in Montana;

First Security Bank of Missoula (Missoula, Montana) with operations in Montana;

Valley Bank (Helena, Montana) with operations in Montana;