Exhibit 21 Subsidiaries of the Registrant Jurisdiction of Incorporation/FormatioPercent of Ownership Parent(s) Subsidiary MFB Corp. MFB Financial Federal 100% MFB Financial Mishawaka Financial Services, Inc. Indiana 100% MFB Financial MFB Investments I, Inc. Nevada 100% ("MFB I") MFB I MFB Investments II, Inc. Nevada 100% ("MFB II") MFB I and MFB II MFB Investments, LP Nevada 100%