Bank of Wisconsin™, A Branch of Bank of Sun Prairie Established with Successful Merger of Banner Ba

FOR IMMEDIATE RELEASE
May 4, 2026

Birnamwood, Wis.‒The former Banner Banks merged with Bank of Sun Prairie and now operates as  Bank of Wisconsin, a branch of Bank of Sun Prairie, a long-standing community bank with four branches 
and deep roots in north-central Wisconsin. The bank’s commitment to building strong relationships and 
thriving communities is second-to-none in Wisconsin – with a hyperfocus on individuals, families,  nonprofits, towns, cities, schools, agriculture, and business.

Bank of Wisconsin offers advanced and secure technologies with a full suite of online and mobile banking, deposit account options for personal and business, expanded lending limits and capabilities, tailored business solutions and cash management services, and meaningful investment in our communities. All while keeping all our employees and building up areas of the bank such as business solutions, home lending, digital banking, and retail.

“Bringing our two banks together has not only expanded our footprint in this great state but has also 
aligned our organizations, our colleagues and our customers under our shared values as a community 
bank that shows up for one another in every way,” shared Jimmy Kauffman, president and CEO. “We have enhanced products and top-notch customer service, and we are also able to double-down on our 
commitment to the agricultural sector and to offering more to businesses and all our neighbors throughout the region.”

Bank of Wisconsin is a branch of Bank of Sun Prairie and is a locally owned, full-service community bank 
with $848 million in assets and eight branches in six communities, Sun Prairie, Cottage Grove, 
Birnamwood, Hatley, Wittenberg and Antigo, Wis. Its mission is to be trusted advisor and community ally 
lifting people and organizations up, milestone to milestone, through leading-edge financial services and 
personal support. Member FDIC. Equal Opportunity Lender.