The organisation's name was a reference to the estimated number of EU citizens who have moved from another member state to live in the United Kingdom.
[1] Its aims are to: The3million positions itself as a group which not only represents and advocates on behalf of EU migrants in the United Kingdom, but which is composed of members of this same population.
[5] On a local level, in collaboration with regional authorities, the3million has provided information events and support for EU migrants affected by the UK's changing relationship with Europe.
[7] In July 2019, the3million issued a judicial review challenge to the Data Protection Act 2018's ‘immigration exemption’.This was dismissed by the High Court in October 2019, and has been subsequently appealed.
[19] The organisation is routinely quoted in reference to developments concerning the rights of EU citizens in the UK, particularly regarding the settlement scheme, and has received coverage in Newsweek, Wired, The Independent, Euronews, Huffington Post, and The National, and Business Review.