High Quality Content by WIKIPEDIA articles! Open Europe is an influentialeurosceptic think-tank and interest group, founded in London by some UK business people, with offices in London and Brussels. While Open Europe does not advocate British withdrawal from the European Union, it is critical of the process of European integration and has called for "substantial powers to be returned" to member states. However, Open Europe has also defended the EU Single Market and freedom of movement. In response to the strikes in Lincolnshire over foreign workers in 2009, it argued that “free movement has on balance been hugely beneficial for Europe”. Open Europe was set up by some of the people behind the campaign against the UK joining the euro and the European Constitution.