Marshall & Ilsley Corporation to Present at the KBW Regional Bank Conference

MILWAUKEE, Feb. 26 /PRNewswire-FirstCall/ — Marshall & Ilsley Corporation (NYSE:MI) will present at the Keefe, Bruyette & Woods (KBW) Regional Bank Conference from 2:30 p.m. to 3:10 p.m. (Eastern Standard Time) Thursday, March 1, at The Langham Hotel in Boston, Mass.

Speaking on behalf of Marshall & Ilsley Corporation will be Greg A. Smith, senior vice president and chief financial officer.

A link to the live audio webcast of the presentation can be accessed at: .

Special instructions: The webcast will be audio-only, accessible using Windows Media Player or RealPlayer. Anyone participating in the webcast will be required to register. The webcast replay will be available (at the same website) within 24 hours of the live webcast presentation for a period of 60 days, unless there is a specific request to remove the webcast at an earlier date.

The PowerPoint presentation referenced during M&I’s presentation can be accessed on Marshall & Ilsley Corporation’s website ( ). The presentation will remain available for approximately 90 days after the conference.

Marshall & Ilsley Corporation (NYSE:MI) is a diversified financial services corporation headquartered in Milwaukee, Wis., with $56.2 billion in assets. Founded in 1847, M&I Marshall & Ilsley Bank is the largest Wisconsin- based bank, with 194 offices throughout the state. In addition, M&I has 45 locations throughout Arizona; 17 offices in Kansas City and nearby communities; 17 offices on Florida’s west coast; 17 offices in metropolitan Minneapolis/St. Paul, and one in Duluth, Minn.; three offices in Tulsa, Okla.; and one office in Las Vegas, Nev. M&I’s Southwest Bank subsidiary has 16 offices in the greater St. Louis area. In December 2006, M&I signed a definitive agreement to acquire United Heritage Bankshares of Florida with 13 locations in the Orlando area. The transaction, expected to be completed in the second quarter of 2007, will give M&I 30 branches along Florida’s west coast and central Florida. Metavante Corporation, a wholly owned subsidiary, provides a full array of technology products and services for the financial services industry. M&I also provides trust and investment management, equipment leasing, mortgage banking, asset-based lending, financial planning, investments, and insurance services from offices throughout the country and on the Internet ( or ). M&I’s customer-based approach, internal growth, and strategic acquisitions have made M&I a nationally recognized leader in the financial services industry.