Madlene Hamilton is Co-founder and Chief Strategist of Impact Hub Freetown. She is an academic social entrepreneur who has spent the majority of her career working on applied social policy issues in education (early childhood through secondary school), health and poverty reduction. Her academic pursuits have taken her to several institutions across the U.S. including Rice, Stanford, and the George Washington University.


While living in Silicon Valley she was a member of the Oakland Impact Hub and became inspired by the community, purpose, and the potential that Impact Hub could have in her parents home country of Sierra Leone. While in SV, she was also bitten by the innovation bug, built a strong network consisting of venture capitalist, developers, designers and tech entrepreneurs and spent her spare time participating and winning a few hackathons.


Nelson Clemens, Co-founder and Chief Business Development Officer, was born and raised in Freetown, Sierra Leone. He has been CEO of the consulting firm, TD Management Services in Freetown, Sierra Leone for the past 11 years. He is certified by the International Finance Corporation (IFC) SME Ventures Programe as a Business Edge Trainer. Nelson has been actively involved in the SME sector as a coach, trainer, researcher and practitioner for the past 15 years.


David Moinina Sengeh, Co-Founder and Chief Technology Officer, was born and raised in Sierra Leone, earned his Ph.D. at the Massachusetts Institute of Technology (MIT) Media Lab. His research in the Biomechatronics Group is at the intersection of medical imaging, material science, human anatomy, computer-aided design and manufacturing.


David is on Forbes 30 Under 30 in Technology for 2013, a 2014 TED Fellow, on the Wired Smart List 2013, winner of the Lemelson-MIT National Collegiate Student Prize, and other awards. David is a cofounder of Global Minimum Inc. (GMin), an NGO that aims to break the cycle of dependence on foreign aid by empowering young inventors to develop tangible solutions to challenges, as well as creative endeavors like his own custom clothing line and making rap music that draws youth towards creativity and away from drugs and gangsterism.