[2] The Development Centre of the Organisation for Economic Co-operation and Development was established in 1961 and ‌comprises 54 countries, of which 25 are OECD members: Belgium, Chile, Colombia, the Czech Republic, Costa Rica, Denmark, Finland, France, Greece, Iceland, Ireland, Israel, Italy, Japan, Korea, Mexico, the Netherlands, Norway, Portugal, Slovak Republic, Slovenia, Spain, Sweden, Switzerland and Turkey.

In addition, 29 non-OECD countries are full members of the Development Centre: Albania (since June 2023), Brazil (since March 1994); India (February 2001); Romania (October 2004); Thailand (March 2005); South Africa (May 2006); Egypt and Viet Nam (March 2008); Indonesia (February 2009); Mauritius, Morocco and Peru (March 2009); the Dominican Republic (November 2009); Senegal (February 2011); Argentina and Cabo Verde (March 2011); Panama (July 2013); Côte d'Ivoire, Kazakhstan and Tunisia (January 2015); the People's Republic of China (July 2015); Ghana and Uruguay (October 2015); Paraguay (March 2017), El Salvador and Guatemala (February 2019), Togo, Rwanda and Ecuador (May 2019).

The European Union also takes part in the work of the Governing Board.

Participating OECD members: Belgium, Chile, Colombia, Czech Republic, Costa Rica, Denmark, Finland, France, Greece, Iceland, Ireland, Israel, Italy, Japan, Korea, Mexico, Netherlands, Norway, Portugal, Slovak Republic, Slovenia, Spain, Sweden, Switzerland and Turkey.

Participating non-OECD members: Albania, Argentina, Brazil, Cabo Verde, China, Côte d'Ivoire, Dominican Republic, Ecuador, Egypt, El Salvador, Ghana, Guatemala, India, Indonesia, Kazakhstan, Mauritius, Morocco, Panama, Paraguay, Peru, Romania, Rwanda, Senegal, South Africa, Thailand, Togo, Tunisia, Uruguay, Viet Nam.