Thomas Okoth Koyier is currently serving as the Vice Chairperson, having been appointed by His Excellency the President as a Member of the National Gender and Equality Commission (NGEC) on 22nd December 2021 as per the Kenya Gazette Notice No 14017 dated 21st December 2021. Commissioner Thomas Okoth Koyier holds a Master's Degree in Business Administration from Southern Oregon University, Ashland, Oregon, U.S.A. and a Bachelor's Degree from Central Washington University in Ellensburg, U.S.A. 

He has served as a Banker in the Financial Sector in the U.S.A. and Kenya, as well as a Member of the Insurance Appeals Tribunal from the year 2019 to 2021 with the Insurance Regulatory Authority under the Ministry of Finance. He has also served as a Board Member for Biblia Sacco, Head of the Commerce Department at Daystar University and a Member of the University Council representing Senior Staff at the University. Before his appointment, Commissioner Koyier was a Lecturer at the School of Business and Economics at Daystar University