Bank First Corporation (BFC) provides financial services through its subsidiary, Bank First, N.A., which was incorporated in 1894. Bank First offers loan, deposit, treasury management and wealth management services at each of its 38 banking locations in Wisconsin and the Stateline area of Illinois following its merger with First National Bank & Trust (FNBT) on January 1, 2026. The 11 FNBT offices operate as a a "division of Bank First" until the conversion takes place in May 2026. After conversion, all locations will operate under the Bank First systems and brand.

The Bank has grown through both acquisitions and de novo branch expansion. Bank First employs approximately 499 full-time equivalent staff and has assets of approximately $6 billion. Insurance services are available through its bond with Ansay & Associates, LLC.