May 26, 2006

First Business Bank - Milwaukee Elects Tim Wallen to its Board of Directors

MILWAUKEE, May 26, 2006 - First Business Bank - Milwaukee today announced the election of Timothy J. Wallen, CPA to its Board of Directors. Wallen is Principal and Chief Executive Officer of NAI MLG Commercial. First Business Bank - Milwaukee is part of First Business Financial Services, Inc. (NASDAQ: FBIZ) which also includes First Business Bank - Madison, First Business Trust & Investments, First Business Leasing, and First Business Capital Corp.

"Tim is a respected, high profile member of the business community and possesses tremendous knowledge of the local real estate market. We are very excited that Tim is joining our board," stated Terry Taylor, President and CEO of First Business Bank - Milwaukee.

Tim joined NAI MLG Commercial in 1989 as Chief Financial Officer and was promoted to Chief Executive Officer in 2000. He is a Principal, Officer, and Board member in all of MLG’s development, investment, and brokerage companies. In addition to his responsibilities as CEO, Tim directs MLG’s development and investment companies, raising funds and assisting in the formation of partnerships to purchase real estate. He also manages the assets of all MLG properties, including multi-family housing, residential land, commercial buildings, and business parks.

Prior to joining MLG, Tim was a tax manager with Price Waterhouse in San Francisco where he specialized in income tax planning for partnerships and corporations in the real estate industry. In 1989, he transferred to the company’s Milwaukee office where he was promoted to the position of manager. Tim is a CPA with a master’s degree in accounting along with a bachelor of business administration and accounting from the University of Wisconsin - Madison.

About First Business Bank - Milwaukee First Business Bank - Milwaukee was established in 2000 to provide a full range of commercial banking services to Milwaukee-area businesses and business people. We are chartered as a unit bank with a CEO, not a branch president, and a board of directors rather than an advisory board. This structure allows us to understand Milwaukee-area businesses and respond quickly and proactively to meet their needs.
About First Business Financial Services, Inc.

First Business Financial Services, Inc. (Nasdaq:FBIZ) is a Wisconsin-based bank holding company, focused on the unique needs of businesses, business executives, and high net worth individuals. First Business offers commercial banking, specialty finance, and private wealth management solutions, and because of its niche focus, is able to provide its clients with unmatched expertise, accessibility, and responsiveness. For additional information, visit or call (608) 238-8008.

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Jodie Johnson
Assistant Vice President ? Marketing
First Business Financial Services, Inc.
(608) 232-5910