Kathy A. Raffa has served as a Director of CBIZ since February 2025, when she was appointed as an independent director. As previously disclosed, in connection with the Company s recent acquisition, Marcum LLP (Marcum) had the right to nominate a director to be appointed to the Board, subject to compliance with certain requirements and the recommendation of the Company s Nominating and Governance Committee and approval by the Board. Ms. Raffa was nominated pursuant to this right. Ms. Raffa was the President of Raffa, PC, a top 100 accounting firm based in Washington, D.C., until its merger in 2018 with Marcum. She then served as the Office Managing Partner for Marcum s D.C. region offices until her retirement in October 2023. Ms. Raffa spent the first 10 years of her career at Coopers & Lybrand (now PricewaterhouseCoopers) where she was a non-profit and higher education specialist in their audit practice. Ms. Raffa previously served on the Board of Directors of Eagle Bancorp, Inc. (Nasdaq: EGBN) and EagleBank (where she also served as chair of the Audit Committee), as well as on a number of non-profit boards including Trinity Washington University, where she was the chair of the Finance Committee and Audit Committee. She is a Certified Public Accountant licensed in the District of Columbia and in Maryland. Ms. Raffa s considerable expertise in management, founding and operating small businesses, her public company board service and her audit, accounting and consulting experience qualify her to serve on our Board of Directors.