Mary Ann Shamis

Mary Ann Shamis

Chief Financial Officer

Mary Ann is CFO of WRC, bringing 40+ years of leadership in payroll, finance, and operations, with a deep commitment to excellence and client service.

Mary Ann brings more than four decades of expertise in payroll, employee benefits, and business management to her role as Chief Financial Officer. In 1981, she co-founded Paytime Integrated Payroll Solutions, building a Cleveland-based company that became a trusted leader in payroll services before its acquisition by CBIZ in 2019.

Her background in public accounting and deep understanding of operational finance underpin her approach to strategic growth and fiscal oversight. Throughout her career, Mary Ann has remained grounded in the values that also define WRC: delivering exceptional client service, fostering professional growth, creating an empowering work environment, and upholding integrity in every client relationship. Her extensive experience, values-driven leadership, and dedication to operational excellence make her an essential part of Winding River Consulting’s leadership team.