The GO Movement says it wants to be the official "leave" campaign in the referendum on the UK's membership of the EU.
The group, led by a mix of politicians including UKIP leader Nigel Farage, former Labour MP Nigel Griffiths and Conservative MP Peter Bone, and business people, announced it will apply to the Electoral Commission for official designation.
It says it will act as an umbrella movement bringing together individuals and organisations committed to a vote to 'leave' the EU.
ITV News Political Editor Robert Peston revealed last week that Grassroots Out - the group the GO Movement has emerged from - could potentially become the main eurosceptic campaigning group. This followed persistent infighting between what were seen as the two main 'vote leave' groups, Leave.EU and Vote Leave.
In a statement, the GO Movement said the groups Grassroots Out, Leave.EU, Global Britain, and the Democracy Movement had all officially affiliated to support its application to the Electoral Commission. It added that other groups such as The Freedom Association and Better Off Out are "cooperating and working alongside the GO Movement whilst remaining independent of it".
Other 'Leave' campaign groups include Vote Leave and the Campaign for Independent Britain.