RTI International (RTI) is a global, independent research institute with almost 60 years of experience in creating and translating knowledge into practice. RTI has more than 5,000 staff in over 75 countries with expertise in at least 250 degree fields working to unlock value in eight practice areas including: health, education, energy, environmental sciences, and innovation ecosystems. RTI International has been working in Asia for more than 35 years, providing technical assistance, institutional strengthening, and program support on behalf of governments, foundations, and private-sector clients. Together with our local partners, we deliver science-based solutions and advisory and technical services to help countries across South and Southeast Asia achieve national, regional, and local goals—in health, education, economic growth, governance and public policy, and environmental management. RTI is implementing contractor for USAID/Cambodia Integrated Early Childhood Development (IECD) Activity. The purpose of the IECD activity is to support children to thrive and reach their full developmental potential by promoting nurturing care for the most vulnerable newborns and young children, starting from before birth. IECD will specifically address stunting through a multi-sectoral approach that strengthens nutrition service delivery at health facilities and in communities; supports nutrition sensitive agriculture; improves WASH practices among caregivers; and promotes responsive caregiving to help children meet critical cognitive, linguistic, socio-emotional, and physical developmental milestones. Focus will be on the early childhood years, with an emphasis on the first 1,000 days for more intensive nutrition, psychosocial, and physical stimulation interventions.