OECD <Organization for Economic Co-operation and Development>
http://www.oecd.org/

France

IEA <International Association for the Evaluation of Educational Achievement>
http://www.iea.nl/

The Netherlands

ETS <Educational Testing Service>
http://www.ets.org/

U.S.A.

ACT 
http://www.act.org/

U.S.A.

Cito<National Institute for Educational Measurement>
http://www.cito.nl/

The Netherlands

ACER <Australian Council for Educational Research>
http://www.acer.edu.au/

Australia

KICE <Korea Institute of Curriculum & Evaluation>
http://www.kice.re.kr/

Korea

KEDI <Korean Educational Development Institute>
http://eng.kedi.re.kr/

Korea

NIER <National Institute for Educational Policy Research>
http://www.nier.go.jp/

Japan