Corey Chambas

Corey Chambas has served as CEO of First Business Financial Services, Inc., since 2006, and has more than 40 years in the commercial banking industry and 32 years at First Business Financial Services, Inc. A graduate of the University of Wisconsin, he has also completed several advanced commercial lending programs including those of Darden (University of Virginia) and Kellogg (Northwestern University). Named 2025 Wisconsin Banker of the Year by Wisconsin Bankers Association and 2026 Banker of the Year by BankBeat, Corey was also selected as one of the 275 most influential people in Wisconsin by BizTimes in 2024 and was recognized by In Business Madison in 2025 among its Power 100, celebrating his work and its impact across Greater Madison. 

In addition to his role as CEO at First Business Financial Services, Inc., parent of First Business Bank, Corey serves as a board member of First Business Financial Services, Inc. and a board member of First Business Bank. Outside the company, Corey is also an Advisory Board member of the Aldine Capital Fund, L.P., and an advisor to the Board of M3 Insurance Solutions, Inc. Corey served on the M3 Board for 18 years, including nine years as Chairman.