October 06, 2005

First Business Financial Services, Inc. Announces NASDAQ Listing

MADISON, October 06, 2005 - First Business Financial Services, Inc., located at 401 Charmany Drive in Madison, WI, announced today that its common stock has been approved for listing on the NASDAQ National Market under the symbol FBIZ. Trading of First Business Financial Services, Inc. stock will begin on Friday, October 7, 2005.

Jerry Smith, CEO of First Business Financial Services, Inc. stated, "This is an exciting day for First Business. It is our belief that listing our common stock on a national market will make it easier for our shareholders to buy and sell our shares and enable future growth through greater access to capital. In addition, we believe a NASDAQ National Market listing will increase the visibility of First Business as we move forward."

Persons interested in trading shares of First Business Financial Services, Inc. can contact either their own broker or one of the following market makers: Keefe, Bruyette & Woods, Inc., 787 Seventh Ave, 4th FL, New York, NY 10019, (800) 342-5529; Ryan Beck & Company, Inc., 18 Columbia Turnpike, Florham Park, NJ 07932, (973) 549-4000; Sandler O?Neill & Partners, LP, 919 Third Avenue, 6th FL, New York, NY 10022, (212) 466-7800.

Smith continued, "Over the last fifteen years First Business has grown its assets to over $600 Million. The listing of our common stock is a continuation of that success story and will enable our company to continue to grow and serve our clients. We have established a statement of principles and beliefs that serve to remind us everyday of who we are and how we got here. Our vision of being the premier financial services provider in the markets we serve has never changed."
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 www.firstbusiness.com or call (608) 238-8008.

The First Business Financial Services, Inc. logo is available at http://www.firstbusiness.com/logo

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