Dr Leon Baranski – May 1966 to May 1967
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Mr Duncan Ndegwa – May 1967 to December 1982
Mr Philip Ndegwa – December 1982 to January 1988
Mr Eric Kotut – January 1988 to July 1993
Mr Micah Cheserem – July 1993 to April 2001
Mr Nahashon Nyaga – April 2001 to March 2003
Dr Andrew Mullei – March 2003 to March 2007
Prof Njuguna Ndung’u – March 2007 to March 2015