Tamzin Ractliffe is widely regarded as creating the first social investment exchange in the world and has been a visionary leader for GreaterGood South Africa – an African online social development networking platform – and its related impact investment advisory business Greater Capital over the past 12 years. Qualified in Applied Psychology and Commerce, she has worked as a financial analyst as well as in private equity and venture capital investment banking in South Africa and internationally for more than twenty years.

She established GreaterCapital in 1997 as a social and impact investment advisory consultancy serving the development sector in South Africa. In 1999, she started The Funding Site, a web-enabled resource site for the development community and in 2004 founded the internationally acclaimed award-winning social networking platform, GreaterGood South Africa Trust, a social profit organisation dedicated to utilizing 21st Century technology to facilitate indigenous philanthropy and performance-based giving in South Africa.

Through GreaterGood Tamzin conceptualized and developed the South African Social Investment Exchange (SASIX) which was launched in June 2006, SASIX Financial – an impact investment fund in partnership with Cadiz Asset Management in 2007 and the South African Network for Impact Investing (SAII) in 2008 before handing over the reins of the GreaterGood Group to pursue the development of NeXii to leverage larger-scale private sector investment in social, environmental and development finance offerings. Tamzin has focused on promoting coherence and organization for maximum efficiencies in the impact investing sector and has continually sought to use the markets for greater social good and was awarded the GIBS Social Entrepreneur of the Year Award in 2007 and appointed an Ashoka fellow in 2008.