Premier Bank cares about helping our customers and communities succeed. As a locally owned and managed bank, we would love the opportunity to be your partner in your success story. Visit our website or stop by one of our five locations. Member FDIC. Premier Bank also operates under the registered trade name Adrian Bank. This registered trade name is used by, and refers to, a single FDIC-insured bank, Premier Bank, Rock Valley, Iowa. Deposits under the trade name are deposits with Premier Bank and are aggregated for deposit insurance coverage up to allowable limits.