WSP works on six core topics. Each area is anchored with a focus of helping governments monitor for improved service provision to ensure sustainability, make the best use of available resources, and inform sector planning.  All six core areas are not implemented in every WSP focus country. Specific activities at the country and regional level are selected in accordance with client demand and WSP’s overall country strategy.

Scaling Up Rural Sanitation and Hygiene
Today, 2.5 billion people live without access to improved sanitation. Of these, 75 percent live in rural communities.  To address this challenge, WSP is working with governments and local private sectors to build capacity and strengthen performance monitoring, policy, financing, and other components needed to develop and institutionalize large scale, sustainable rural sanitation programs. With a focus on building a rigorous evidence base to support replication, WSP combines Community-Led Total Sanitation, behavior change communication, and sanitation marketing to generate sanitation demand and strengthen the supply of sanitation products and services, leading to improved health for people in rural areas.
Related link: Global Scaling Up Handwashing Project

Creating Sustainable Services through Domestic Private Sector Participation
WSP taps into the financial and technical capacity of the domestic private sectorto help effectively manage and improve existing services and infrastructure. The Sustainable Services through Domestic Private Sector Participation (SS-DPSP) project supports WSP’s client governments to scale up the technical and financial capacity of the domestic private sector to help poor people gain sustained access to improved water supply and sanitation services.
Supporting Poor-Inclusive Water Supply and Sanitation (WSS) Sector Reform
The  fundamental challenge of WSS sector reform is one of “fixing the institutions that fix the pipes.” By providing evidence-based knowledge, WSP works with national and sub-national governments to develop pro-poor strategies and policies. WSP also works to strengthen the voice and capacity of citizens, including the poor, to demand greater accountability and responsiveness from public officials and service providers.
Related link: The International Benchmarking Network for Water and Sanitation Utilities

Targeting the Urban Poor and Improving Services in Small Towns
Many cities have low water quality, unreliable supply, and distorted prices that burden consumers, especially the poor. WSP supports sub-national governments and public and private WSS providers, working to improve water supply in dense urban, peri-urban areas, and small towns by developing pro-poor policies, guidelines, and models for improved.

Adapting Water Supply and Sanitation (WSS) Delivery to Climate Change Impacts
Developing countries are the least equipped to respond to impacts of climate change today on basic services such as water and sanitation, where deficits already exist. To help develop institutional mechanisms and capacities and inform policies on climate-related impacts on water and sanitation for the poor, WSP is working to mainstream climate-smart WSS planning, conduct research, compile data and knowledge, harmonize sector players, and build capacity of WSP clients and partners.

Delivering Water Supply and Sanitation (WSS) Services in Fragile States
Fragile States are the countries at greatest risk of not meeting the MDGs. After the crises have passed, these countries face a great need for strengthened policies, capacity, and infrastructure to provide sustained WSS services. WSP is addressing the need, collaborating with Sanitation and Water for All partners (developing countries, implementation agencies, and donors) to increase political prioritization of WSS, promote evidence-based decision making, and support strong national processes.