There's two rival campaigns for the out option for some unknown reason. You'd think they would combine into one.
Per the BBC...
http://www.bbc.com/news/uk-politics-34502343
Vote Leave comprises a cross-party group of MPs and peers from the Conservatives and Labour, and UKIP's only MP Douglas Carswell.
It is being run by Taxpayers' Alliance campaign group founder Matthew Elliot, who organised the successful 'No2AV' campaign in the referendum on Westminster's voting system, and Dominic Cummings, a former special adviser to Conservative cabinet minister Michael Gove.
It has the backing of three existing Eurosceptic groups: Conservatives for Britain; Labour Leave and Business for Britain, and is being funded by party donors.
Leave.EU was formerly called The Know and rebranded when an amended referendum question was proposed. Founded by UKIP donor Arron Banks, it has been described by UKIP leader Nigel Farage as an "umbrella group" of anti-EU campaigners.
It describes itself as "Britain's fastest-growing grassroots organisation" and claims to have gained 175,000 members since The Know was launched in August.
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The Electoral Commission has yet to designate the official campaigns on either side of the EU debate.
The chosen groups will benefit from increased spending limits of £7m during the campaign period, campaign broadcasts, and a free mailout to households.
They all get access to public meeting rooms and to the electoral register, and are entitled to public grants of up to £600,000.