Duncan Onyango joined Acumen as Director of East Africa in September 2012. He has been a long supporter of Acumen and informally served as an advisor to the East Africa team over the years, as well as being actively involved in the Fellows Program. Duncan most recently served as the Group Chief Finance Officer of Rift Valley Railways, where he led the structuring of a $287M debt and equity capital investment in the rail sector. He began his career with over ten years at Abbey National, a major international bank in London, gaining cross-functional business experience in both the retail and corporate arms of Abbey, including serving as the bank’s Head of Training & Management Development for the Wealth Management Division.