EU 27 refers to the current 27 members of the European Union.  Romania and Bulgaria joined the EU on 1 January 2007 to bring the total to 27. 

EU 27

Austria, Belgium, Bulgaria, Cypress, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, , Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom