Marty Grenfell serves as the Chief Executive Officer at Tauranga City Council, a position he has held since 2018. Prior to this, he was the Chief Executive at Whakatane District Council starting in 2011. His career in local government also includes a role as General Manager, Community Services at Hutt City Council from 2008 to 2011, and Director: Community Services at Upper Hutt City Council from 2005 to 2008. Earlier in his career, Grenfell served with the New Zealand Police from 1985 to 2005.