December 19, 2006

Photo Release -- First Business Financial Services Elects John M. Silseth to Board of Directors

MADISON, Wis., Dec. 19, 2006 (PRIME NEWSWIRE) -- First Business Financial Services, Inc. (Nasdaq:FBIZ), located at 401 Charmany Drive in Madison, announced today that John M. Silseth has been elected to its Board of Directors. John is President of Antietam, LLC in Milwaukee and has served on the board of First Business Bank - Milwaukee since February of 2004. He will continue to serve on the Milwaukee board in addition to this new appointment.

A photo accompanying this release is available here.

"John will be a great addition to our board. His knowledge of the marketplace, financial expertise, and commitment to the community have served First Business Bank - Milwaukee well. We look forward to having John and his depth of experience on our holding company board," stated Jerry Smith, Chairman of First Business Financial Services.
Silseth, President of Antietam, serves on the board of First Business Bank - Milwaukee and United Lutheran Program for the Aging. John has also served on the boards of: Lutheran Social Services of Wisconsin & Upper Michigan; Serenity Inns; Ampco Pumps Company, Inc.; Wilderness Log Homes, Inc.; Raffel Comfort Services, LLC; Kasgro Rail Corp.; Kasgro Leasing LLC; Prince Corporation; and Zenith Products. He has also acted as Chairman of Lutheran Social Services CEO Search and Screen Committee for Lutheran Social Services of Wisconsin & Upper Michigan.
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.

The First Business Financial Services, Inc. logo is available at

Forward-Looking Statements
This press release contains forward-looking statements that reflect the Corporation's plans, estimates and beliefs. When used in this press release, the words "anticipate," "believe," "estimate," "expect," "objective" and similar expressions and verbs in the future tense are intended to identify forward-looking statements. The statements contained in this press release involve or may involve certain assumptions, risks, and uncertainties, many of which are beyond the Corporation's control, which could cause actual results to differ materially from those discussed in the forward-looking statements. The forward-looking statements included in this press release are only made as of the date hereof, and the Corporation undertakes no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances. In addition to the assumptions and other factors referenced specifically in connection with such statements, the factors described in "Item 1A. Risk Factors" in our Annual Report on Form 10-K and the following factors could impact the business and financial prospects of the Corporation: general economic conditions; legislative and regulatory initiatives; increased competition and other effects of deregulation and consolidation of the financial services industry; monetary and fiscal policies of the federal government; deposit flows; disintermediation; the cost and availability of funds; general market rates of interest; interest rates or investment returns on competing investments; demand for loan products; demand for financial services; changes in accounting policies or guidelines; general economic developments; acts of terrorism and developments in the war on terrorism; and changes in the quality or composition of loan and investment portfolios.

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