CPA Mary A.C. Wanyonyi is a Certified Public Accountant, Certified Professional Mediator (CPM) and Financial Analyst with 37 years of experience in the public sector at national and sub-county level. An ambitious and diligent professional, she has expert knowledge in the organization and functions of Government and is skilled in implementation and monitoring of accounting standards and systems and administering accounting units.

Prior to joining CRA as Chairperson, Mrs. Wanyonyi worked with the Ministry of Lands and Physical Planning as a Senior Deputy Accountant General.

Previously, she served as a Head of Department in various Ministries. She has also served as a member on the boards of Kenyatta National Hospital, Masai Mara University and Cooperative University and as the Chairperson of the Kenya Ladies Golf Union.

Mrs. Wanyonyi is member of ICPAK, ICIFA and AWAK. She holds a Master of Business Administration, a Bachelor of Commerce (Accounting) and is a Certified Professional Mediator.