EcoSun is a social enterprise working toward to energy/ electricity solution for people and communities in Cambodia. EcoSun established in June 2008 by a group of experienced and expertise people in energy and renewable energy, including saving energy, electrical engineer, biogas, solar, small micro hydropower, as well as rural development, agriculture engineer, environment and climate change. The three specialized program are:

1. Renewable Energy: Solar, Biogas, and Micro-hydro
2. Saving Energy: quality and saving energy lights, and electronic products
3. Energy Consultation/Audit