Andreas Renner is a founder and managing partner of GEXSI LLP. Andreas Renner has built up GEXSI's Development Investment Unit. Having brokered
pilot investment deals in social enterprises in Ecuador, Bolivia and Madagas-
car, he now manages a deal flow pipeline comprising about 20 projects in three continents. Andreas Renner leads the GEXSI biofuel team and has consulted several international clients in setting-up jatropha schemes. He also holds a
non-executive director position in a company which develops earth-quake re-
sistant construction materials suitable for low-income regions worldwide.
Before he joined GEXSI, Andreas Renner was Senior Consultant at an interna-
tional consultancy specializing in international corporate social responsibility
and environmental mediation. Andreas Renner holds a PhD in economics and
has published various articles and books on market-based approaches to sustainable development.

Maritta Koch-Weser is founder and partner of GEXSI LLP. She worked for almost 20 years at the World Bank, where she was closely associated with the establishment of environmental and social programs and policies. In her most recent World Bank assignment she was Director for Environmentally & Socially Sustainable Development for the Latin America & Caribbean Region. Following her World Bank assignment, she served for two years as Director General of IUCN
(The World Conservation Union). Mrs Koch-Weser is also President of Earth3000, an international environmental organization founded in Germany in 2001.
She holds a Ph.D. from the Universities of Bonn and Cologne, taught Anthropology and Latin American Studies at George Washington University in Washington D.C., and has carried out extensive field research in Brazil.