ENPHO has been closely working with relevant stakeholders and individuals to share information and coordinate and implement joint activities, research, and academic studies related to safe water, sustainable sanitation, health and hygiene promotion, and other environmental concerns.

ENPHO is a member organization in the following different civil societies and technical forums:
• Coordinating organizations of NGO Forum for Kathmandu Valley Water Supply and Sanitation
• International Water Association (IWA) Nepal Chapter – Ad Hoc Committee Member
• International Training Program in Sustainable Urban Water and Sanitation Integrated Processes -Member
• Technical committee member for Drinking Water Quality and lab issues for NBSM
• Network member in Resource Center Network Nepal (RCNN)
• Member of WASH cluster
• Member Sustainable Sanitation Alliance (SuSanA)
• Member of Citywide Inclusive Sanitation Alliance Nepal (CWISAN)
• National Conveyer to coordinate with FANSA members for Nepal
• Member of Citywide Inclusive Sanitation Technical Working Group (CWIS-TWG)