First Business Bank to Participate in Sidoti’s Year End Virtual Investor Conference on December 11, 2025

First Business Bank to Participate in Sidoti’s Year End Virtual Investor Conference on December 11, 2025 First Business Financial Services, Inc. (the “Company” or “First Business Bank”) (Nasdaq:FBIZ) will participate in the Sidoti & Company Year End Virtual Investor Conference on Thursday, December 11, 2025. Corey A. Chambas, Chief Executive Officer, David R. Seiler, President and Chief Operating Officer, and Brian D. Spielmann, Chief Financial Officer, will present an overview of the Company’s operations, strategy, and financial results via live webcast at 1:00 p.m. EST. They will also host one-on-one investor meetings throughout the day. The webcast may contain forward-looking statements and other material information. When Thursday, December 11, 2025 at 1:00 p.m. EST Format Virtual presentation and one-on-one meetings with investors Webcast https://sidoti.zoom.us/webinar/register/WN_MsTaN_e_TSanpKIpr0SQhA One-on-One Registration www.sidoti.com/events Registration is free About First Business Bank First Business Bank® 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®. First Business Bank is a wholly owned subsidiary of First Business Financial Services, Inc®. (Nasdaq: FBIZ). For additional information, visit firstbusiness.bank. Source: First Business Financial Services, Inc.