Guaranty Bancorp, formerly Centennial Bank Holdings, Inc. (Centennial), is a bank holding company. The Companys principal business is to serve as a holding company for its subsidiary. As of December 31, 2008, the Company had a single Bank subsidiary, Guaranty Bank and Trust Company (Guaranty Bank or Bank). Guaranty Bank is a full-service community offering a range of banking products and services to the communities it serves, including accepting time and demand deposits and originating commercial loans (including energy loans), real estate loans, small business and consumer loans. Guaranty Bank also provides trust services, including personal trust administration, estate settlement, investment management accounts and self-directed individual retirement accounts (IRAs). On January 1, 2008, the Company completed the merger of Centennial Bank of the West (CBW) into Guaranty Bank.