CIB Marine Bancshares, Inc. functions as a holding company for CIBM Bank, which offers commercial banking services to a diverse clientele of individuals and businesses across Illinois, Indiana, and Wisconsin. The bank facilitates various deposit accounts, including checking, savings, and certificates of deposit. Its comprehensive lending portfolio includes commercial loans, financing for commercial and residential construction, commercial real estate loans, government-backed loans, mortgages for one-to-four family residences, home equity products, and consumer loans. Additionally, the company provides commercial and standby letters of credit. Beyond traditional banking, it delivers trust services, cash management solutions, repurchase agreements, and mortgage services, while also engaging in securities investments. Originally established in 1985 as Central Illinois Bancorp, Inc., the company rebranded to CIB Marine Bancshares, Inc. in August 1999 and is based in Brookfield, Wisconsin.