Sanitation Service Delivery (SSD) was a seven-year, $19M activity awarded to Population Services International (PSI) and partners Water and Sanitation for the Urban Poor (WSUP) and Program for Appropriate Technology in Health (PATH) from 2014-2021. West Africa Municipal Water, Sanitation and Hygiene (MuniWASH) is a five-year, $13M activity awarded to TetraTech as lead and subawardees Population Services International (PSI) and Segura Consulting LLC from 2019-2024. Both activities are funded by the United States Agency for International Development/West Africa (USAID/WA) Regional Mission and implemented in Benin and Côte d’Ivoire. USAID/WA commissioned the Analytical Support Services and Evaluations for Sustainable Systems (ASSESS) Project to conduct a performance evaluation of its WASH portfolio from 2017-to-date, consisting of SSD and MuniWASH. The evaluation examines if the SSD Activity has contributed to a more functional, inclusive, and sustainable sanitation market system for the urban poor, and increased their sustainable access to improved sanitation and safe disposal of fecal waste, as well as improving enterprise viability. It also identifies areas for improvement of MuniWASH’s implementation that will facilitate the attainment of planned results by 2024. Finally, it aims to document the findings and lessons learned from both projects to inform decisions about current and future WASH programming in Benin and Côte d’Ivoire.