Contracting relationships between public school districts and vendors are a common feature of education provision in the United States. Contracted services in schools can range from broad, essential functions such as school meals, bussing, and janitorial services to more specialized services such as the analysis of student data, curriculum mapping, and professional development for staff members. The strength of these contracting relationships depends on vendors providing consistent services and on payment between vendors and districts. Providers are paid with public funds, and communities may expect clear oversight of contracts and transparency about their effects on valued outcomes. Transparency also can help districts make decisions about whether or not to continue contracts with providers.