Harrison is the team leader for iServe Africa. He holds a Bachelors degree in Education (Mathematics and Business Studies) from the University of Nairobi. Previously, Harrison was an Apprentice with the 9:38 Movement at All Saints Crowborough in Sussex, UK. He also did a year as a Careforce Volunteer in Norcot Mission Church, Reading (2005 – 2006)

During his time in the UK, Harrison did the 2 Year Philip Project Course at Cornhill in London and also attended The Sussex Coast Ministry Training Course in Eastbourne. Harrison has been involved in missions mobilization and ministry training conferences and brings on board practical skills in volunteering and discipleship.
Harrison is currently a part time student at Africa Inetrnational University (NEGST) pursuing an M.Div (Theology). He is married to Rhoda and they have two sons,Tim and Philip.