PISA was launched by the Organisation for Economic Co-operation and Development (OECD).

The PISA project can be thought of as operating at a number of levels.
We put some key players at a glance:

•The PISA project is overseen by a Secretariat within the OECD. 
•The project policy parameters are set by the PISA Governing Board (PGB), which is an OECD committee comprising delegates and observers from the participating countries.
•The design and implementationof PISA 2012 were the responsibility of an international consortium, led by the Australian Council for Educational Research (ACER).
PISA 2015 is now being developed by a series of contractors led by the OECD. These contractors are: ETS (projectmanagement), Westat, DIPF, Pearson, CRP Henri Tudor and cApStAn.

•The expert groups develop the instruments used in PISA and make sure that these instruments consider the cultural and educational contexts in different OECD-countries, so they can be used internationally.
•Within each participating country, a national centre is established. A National Project Manager (NPM) is appointed to coordinate all activities at the national level.