Corporate Profile


Columbia Banking System, Inc.

Columbia Banking System Inc. (Nasdaq: COLB) is headquartered in Tacoma, Washington and is the parent company of Umpqua Bank, an award-winning western U.S. regional bank based in Lake Oswego, Oregon. In February 2023, Columbia and Umpqua Holdings Corporation joined two of America’s Best Banks (ranked by Forbes) and the Northwest’s premier financial institutions under the Umpqua Bank brand to create one of the largest banks headquartered in the West and a top-30 U.S. bank. With over $50 billion of assets, Umpqua Bank combines the resources, sophistication and expertise of a bank with national reach with a commitment to deliver personalized service at scale. The bank operates in Arizona, California, Colorado, Idaho, Nevada, Oregon, Utah, and Washington State and supports consumers and businesses through a full suite of services, including retail and commercial banking; Small Business Administration lending; institutional and corporate banking; and equipment leasing.

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Contact Information

Columbia Banking System, Inc.
1301 A Street, Suite 800
P.O. Box 2156
Tacoma, WA 98402-2156
(253) 305-1900

Investor Relations Contact
Jacquelynne "Jacque" Bohlen
(503) 727-4100
shareholders@umpquabank.com

Transfer Agent
Broadridge Corporate Issuer Solutions
P.O. Box 1342
Brentwood, NY 11717
(866) 232-0399
shareholder@broadridge.com