The Centre for Advanced Philippine Studies (CAPS)is a non-stock, non-profit research and development foundation established in 1987. Originally, it was a research and publication institution conducting research projects on agrarian reform, agriculture and livelihood.

These days CAPS provides the following services in the field of sanitation for development:

• Programme Management
• Capacity Building
• Policy Advocacy and Reforms
• Research and Publication
• Advisory Services

There are 38 CAPS case studies on decentralized wastewater treatment solutions from sanitation projects in Cambodia, Lao, Vietnam and Philippines currently on the WaterWiki. These studies were produced by CAPS for UNEP with funding by KOICA.