**Exhibit (21)**

MARSHALL & ILSLEY CORPORATION 

SUBSIDIARIES 

February 28, 2007 

Subsidiaries Incorporated or Organized in Wisconsin 

    Kirchman Corporation 

    M&IBank of Mayville 

    M&I Marshall & Ilsley Bank 

    M&I Brokerage Services, Inc. 

    M&I Capital Markets II, L.L.C.

    M&I Community Development Corporation 

    M&I Dealer Finance, Inc. 

    M&I Equipment Finance Company 

    M&I Insurance Services, Inc. 

    M&I Investment Management Corp. 

    M&I Investment Partners Management, LLC 

    M&I Realty Advisors, Inc. 

    M&I Support Services Corp. 

    Metavante Corporation 

    Milease, LLC 

    Printing forSystems, Inc. 

Subsidiaries Incorporated in Arizona 

    M&I Insurance Company of Arizona, Inc. 

Subsidiaries Incorporated in California 

    Loansoft, Inc. 

Subsidiaries Incorporated orOrganized in Delaware 

    Brasfield Technology LLC 

    Gold Bank Trust III 

    Gold Bank Trust IV 

    Gold Bank Trust V 

    KirchmanCompany LLC 

    M&I Capital Markets Group L.L.C. 

    M&I Capital Trust A 

    M&I Capital Trust B 

    M&I Dealer Auto Securitization, LLC 

    M&I Northwoods I LLC 

    M&I Northwoods II LLC 

    M&I Northwoods III LLC 

    M&I Ventures L.L.C. 

    Metavante Acquisition Company II LLC 

    Metavante Operations Resources Corporation 

    Metavante Payment Services, LLC 

    NYCE Payments Network, LLC 

    Prime Associates, Inc. 

    VECTORsgi, Inc. 

Subsidiaries in Kansas 

    Gold Banc Mortgage, Inc. 

    Gold Capital Management, Inc. 

    Gold Merchant Banc, Inc. 

    Realty Escrow Services, Inc. 

    Regional Holding Company, Inc. 

    Regional Properties, Inc. 

SubsidiariesIncorporated in Michigan 

    MBI Benefits, Inc. 

Subsidiaries Incorporated in Minnesota 

    M&I Business Credit, LLC 

    M&I Business Credit Holdings, Inc. 

    Two Gophers, L.L.C. 

Subsidiaries Incorporated or Organized in Missouri 

    Louisville Realty Company 

    SWB Holdings, Inc. 

    SWB Investment II Corporation 

    Southwest Bank of St. Louis 

    Trustcorp Statutory Trust I 

    Trustee Corporation, Inc. 

Subsidiaries Incorporated or Organized in Nevada 

    M&I Custody of Nevada, Inc. 

    M&I Marshall & Ilsley Holdings, Inc. 

    M&I Marshall & Ilsley Holdings II, Inc. 

    M&I Marshall & Ilsley Investment Corporation 

    M&I Marshall & IlsleyInvestment II Corporation 

    M&I Mortgage Pass-Through Business Trust Series, 2004-1 

    M&I Portfolio Services, Inc. 

    M&I Servicing Corp. 

    M&I Zion Holdings, Inc. 

    M&I Zion Investment Corporation 

    M&I Zion Investment II Corporation 

    SWB Investment Corporation 

    SWB of St. Louis Holdings I, LLC 

    SWB of St. Louis Holdings II, LLC 

    TREEV LLC 

    VICOR, Inc. 

Subsidiaries Incorporated orOrganized in Oklahoma 

    Advanced Financial Solutions, Inc. 

    Endpoint Exchange LLC 

Subsidiaries Incorporated in Pennsylvania 

    GHR Systems, Inc. 

Subsidiaries Incorporated in Texas 

    AdminiSource Communications, Inc. 

SubsidiariesIncorporated in Tennessee 

    Link2Gov Corp. 

Subsidiaries Incorporated in Vermont 

    M&I Mortgage Reinsurance Corporation 

Subsidiaries Organized Under the Laws of the United States 

    M&I Bank FSB 

    Marshall & Ilsley Trust Company National Association 

Subsidiaries Organized Under the Laws of Canada 

    Everlink Payment Services, Inc. 

    Metavante Canada Corporation 

    6027580 Canada, Inc. 

    GHRSystems Canada, Inc. 

 

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