Founded in 1995 by the Oneida Nation and a group of five Green Bay area businessmen, Bay Bank intended to provide the Green Bay area community with a locally controlled financial institution. In 2000, the Oneida Nation became the sole owner of Bay Bank, which could then provided more federally funded programs to directly assist tribal members and unique mortgage and entrepreneurial programs to assist Oneidas in obtaining housing and starting business ventures. Bay Bank is the only area bank to offer the HUD Section 184 Indian Housing Loan Guarantee Program. The Program offers any Native American member of a federally recognized tribe an opportunity to own a home. Bay Bank also administers a unique program referred to as the Oneida Small Business Project 2000, which has successfully delivered over $5 million investment dollars to over 100 Oneida small business entrepreneurs. Today, Bay Bank has assets of nearly $85 million and a staff of 27 people.
Bay Bank is now certified as a Community Development Financial Institution (CDFI). The U.S. Department of the Treasury's Community Development Financial Institutions Fund (CDFI Fund) follows a comprehensive process to certify financing entities. This prestigious designation confirms that Bay Bank is a mission driven bank that promotes community development and its primary target market is underserved communities including Native Americans and small businesses.