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Private company

FIRST INTERSTATE BANCSYSTEM, INC.

FIRST INTERSTATE BANCSYSTEM, INC. is a corporation registered in Delaware, based in Billings, active since 2023.1

Last updated Oct 21, 2026.

Overview

May 25, 2023Founded1
  • HeadquartersBillings, United States1
  • Legal formCorporation1
  • LEI549300WRWYTYX0RCNJ431
  • StatusActive1
  • LEI statusIssued and current1
  • Registered addressC/O CORPORATION SERVICE COMPANY, 19808 Wilmington, United States1
  • Registered withDivision of Corporations, Department of State, 72560351

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Corporate structure

FIRST INTERSTATE BANCSYSTEM, INC. sits at the top of its group. 15 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • FIRST INTERSTATE BANCSYSTEM, INC. Billings, Montana, United States
    • First Interstate Bank Billings, Montana, United States
      • FI Capital Trust II Subsidiary · Delaware, United States
      • FI Capital Trust IV Subsidiary · Delaware, United States
      • FI Statutory Trust I Subsidiary · Connecticut, United States
      • FI Statutory Trust III Subsidiary · Delaware, United States
      • FI Statutory Trust V Subsidiary · Delaware, United States
      • FI Statutory Trust VI Subsidiary · Delaware, United States
      • Great Western Statutory Trust IV Subsidiary · Connecticut, United States
      • GWB Capital Trust VI Subsidiary · Delaware, United States
      • HF Financial Capital Trust V Subsidiary · Delaware, United States
      • HF Financial Capital Trust VI Subsidiary · Delaware, United States
      • Northwest Bancorporation Capital Trust I Subsidiary · Delaware, United States
      • Sunstate Bancshares Trust II Subsidiary · Delaware, United States
    • Great Western Bancorp, Inc. Sioux Falls, South Dakota, United States

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC. Each entity in the chart links to its source.

Subsidiaries and ownership

Subsidiaries (GLEIF)

Ownership links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); each one cites its LEI record.

Timeline

  1. May 25, 2023Founded FIRST INTERSTATE BANCSYSTEM, INC. is founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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