First Business Trust & Investments: Promotes Pauline Hittesdorf to Investment Administrative Officer. Marcy Richards is Promoted to Trust & Investment Associate.

MADISON, April 7, 2006 – First Business Trust & Investments, a division of First Business Bank, announced the promotion of Pauline Hittesdorf to Investment Administrative Officer and Marcy Richards to Trust & Investment Associate. First Business Trust & Investments is a part of First Business Financial Services, Inc. (NASDAQ: FBIZ).

Pauline has worked with First Business Trust & Investments since 1999. She has over 18 years of experience in the financial industry with extensive work in retirement services, investment management, and insurance administration. Pauline is a graduate of Madison Business College.

Marcy has worked with First Business Bank since 2003, and has over seven years of experience in the financial industry. Marcy earned her Bachelor of Science degree from the University of Wisconsin–Madison.

About First Business Trust & Investments

First Business Trust & Investments, a division of First Business Bank, serves the trust and investment needs of businesses, not for profit organizations, and individuals, offering a full line of products and services including qualified retirements plans, investment management services, and trust services. For additional information, visit www.fbtrustinvest.com or call 608-218-8000.