The IEEP family has existed for over 40 years and has very strong roots in the UK. The organisation has, in the past, been present in several European countries. UK exit from the EU gave rise to the decision to establish an independent, not for profit entity based in Brussels with similar objectives to that of IEEP UK based in London. As a result, there are now two legal entities which make up the IEEP family: IEEP UK and IEEP AISBL. The latter is based in Brussels and a Cooperation Agreement governs the relationship between the legal entities.