Complex studies such as PISA cannot be accomplished by only one agency or organization. Throughout the course of PISA, the National Center for Education Statistics (NCES) has relied on various partners to provide support in every aspect of the study. Listed below are the main contractors involved in PISA 2015.
Organization for Economic Cooperation
and Development (OECD)
Coordinates PISA at the international level
National Center for Education Statistics (NCES)
Coordinates and funds PISA in the United States