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Bank First Corp is a United States-based company engaged in providing financial services, a full range of consumer and commercial financial institution services to individuals and businesses, including retail and commercial banking in Wisconsin. These services include credit cards; secured and unsecured consumer, commercial, and real estate loans; demand, time, and savings deposits; and ATM processing. The Corporation also offers a full line of insurance services and checking accounts, savings accounts, money market accounts, cash management accounts, certificates of deposit, commercial and industrial loans, commercial real estate loans, construction and development loans, residential mortgages, consumer loans, credit cards, online banking, telephone banking, and mobile banking.

Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis.