Webum > Society > Government > Multilateral > Regional > European Union > Institutions Council of the European Union European Commission European Court of Auditors European Court of Justice European Parliament Europa: Institutions Brief introduction and links to the institutions of the European Union. Committee of the Regions (COR) An advisory assembly composed of 222 representatives of local and regional authorities. Economic and Social Committee Forum of civil society organisations which consult the Council, the Commission, and the Parliament in policy development. IDEA The official electronic contacts directory for all of the EU institutions. Help build the biggest human edited directory on the internet Add your website - Open Directory Project - Become an editor