Pro Remain Groups in the United Kingdom European Union membership referendum, 2016

The Remain Campaign in the 2016 United Kingdom European Union membership referendum was led by Britain Stronger in Europe, a cross-party lobbying group that was declared as the official "Remain" campaign for the referendum by the Electoral Commission. However there were a number of other groups that were involved in leading more specialist campaigns. Examples of leaflets used by the remain groups can be found on the LSE Library's collection of referendum leaflets.

Britain Stronger in Europe (formally The in Campaign Ltd) is a cross-party lobbying group campaigning for the United Kingdom to remain in the European Union in the United Kingdom European Union membership referendum, 2016. It was launched at the Truman Brewery in London on 12 October 2015 and declared as the official "Remain" campaign for the referendum by the Electoral Commission on 13 April 2016.

British Influence, formally the Centre for British Influence Through Europe, is an independent, cross-party, pro-single market foreign affairs think tank based in the United Kingdom arguing that that EU membership improves the UK's prosperity, security and society through, respectively, the European Single Market, co-operation on tackling organised crime and terrorism and through the increased peace and transparency that comes from international collaboration.

An independent, non-partisan, grassroots organisation that works to promote the idea that the UK’s brightest future lies in close partnership with its European neighbours. It is part of the European Movement International network that has been campaigning for peace, stability, better jobs and prosperity through European integration for over 70 years.

The Federal Trust is a research institute studying the interactions between regional, national, European and global levels of government. Founded in 1945 on the initiative of Sir William Beveridge, it has long made a powerful contribution to the study of federalism and federal systems. It has always had a particular interest in the European Union and Britain’s place in it.

Young European Movement was formed in 1972 as a non-partisan platform for pro-European opinions of the under 35s. They have a history of organising events, running campaigns and even bringing education into schools. They are volunteer run and seek to promote European integration and a stronger European Union.

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