MADISON, Wis.--(BUSINESS WIRE)--July 06, 2026--

First Business Financial Services, Inc. (the "Company" or "First Business Bank") NASDAQ:FBIZ invites participation in a conference call to discuss the Company's financial and operating performance during its second quarter ended June 30, 2026. The conference call and webcast may contain forward-looking statements and other material information.

Event: Earnings Conference Call -- Second Quarter 2026 When: Friday, July 31, 2026 at 8:00 a.m. Central Time How: By conference call or from a simultaneous webcast Access: Webcast: https://events.q4inc.com/attend ee/940117929 Conference Call Dial-In: 833-461-5787 (toll free) +1 585-542-9983 (international) Conference Call Access Code: FBIZ, 940 117 929

David R. Seiler, President and Chief Executive Officer, and Brian D. Spielmann, Chief Financial Officer, will provide an overview of second quarter 2026 results. The management presentation is expected to last approximately fifteen to thirty minutes, followed by investor questions and discussion. The Company's second quarter results will be released after the market closes on Thursday, July 30, 2026 and will also be available in the "Investor Relations" section of the Company's website.

The webcast archive of the conference call will be available on the Company's website, ir.firstbusiness.bank.

About First Business Bank

First Business Bank(R) specializes in Business Banking, including Commercial Banking and Specialty Finance, Private Wealth, and Bank Consulting services, and through its refined focus delivers unmatched expertise, accessibility, and responsiveness. Specialty Finance solutions are delivered through First Business Bank's wholly owned subsidiary First Business Specialty Finance, LLC(R). First Business Bank is a wholly owned subsidiary of First Business Financial Services, Inc(R). NASDAQ:FBIZ. For additional information, visit firstbusiness.bank.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260706740004/en/

CONTACT: Brian Spielmann, Chief Financial Officer

608-232-5977

bspielmann@firstbusiness.bank