IWWEF 2025 is proudly organized by Indonesia’s leading water utility association.
PERPAMSI (Indonesian Water Supply Association)
PERPAMSI, or the Indonesian Water Supply Association, is a national organization that unites regional drinking water companies (PDAMs) throughout Indonesia. Established in 1972, PERPAMSI has played a significant role in facilitating collaboration, capacity building, policy advocacy, and innovation in Indonesia’s water supply and sanitation sector.
Through IWWEF, PERPAMSI connects key stakeholders—government, private sector, academics, and regional water companies—to collectively enhance the quality, accessibility, and sustainability of water and wastewater services across the country.