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.

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, visitfirstbusiness.bank

View source version on businesswire.com:https://www.businesswire.com/news/home/20251208606042/en/

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