In the Philippines:

Philippine Ecosan Network (PEN)

Center for Advanced Philippine Studies (CAPS)

Water, Agroforestry, Nutrition & Development (WAND) Foundation

Southeast Asia Rural Social Leadership Institute (SEARSOLIN)

Fit for School

Worldwide:

Sustainable Sanitation Alliance (SuSanA)

GTZ Sustainable Sanitation/Ecosan Program

SEI EcoSanRes Program

Ecosan Services Foundation (ESF), India

Environment and Public Health Organisation (ENPHO)

Seecon International, Switzerland

German Toilet Organization (GTO), Germany

Local Governments for Sustainability (ICLEI)

Technische Universität Hamburg-Harburg (TUHH)