Nucleus is a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

-Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

an advocacy group

Advocacy group

Advocacy groups use various forms of advocacy to influence public opinion and/or policy; they have played and continue to play an important part in the development of political and social systems...

, based in London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

, but with additional operations in Brussels

Brussels

Brussels , officially the Brussels Region or Brussels-Capital Region , is the capital of Belgium and the de facto capital of the European Union...

.

Founded in 2010, Nucleus promotes a 'euro-realist' British approach to European political and business affairs. As well as regular bulletins, Nucleus produces commentaries, and hosts briefings, seminars, and networking events both in London and Brussels.

Nucleus is a partner in both the British Brussels Network, along with Business for New Europe

Business for new europe

Business for New Europe is a coalition of pro-European business leaders, a think-tank and an advocacy group. It was set up in 2006 by Roland Rudd, a former journalist on the Financial Times and board member of Britain in Europe to promote the benefits of the UK’s membership of the European Union...

, the British Chamber of Commerce in Belgium

British Chamber of Commerce

The British Chamber of Commerce is a United Kingdom lobbying group representing the interests of many businesses and trade associations. It is not an agency of the United Kingdom government....

, and the Institute of Chartered Accountants in England and Wales, and the pan-European EuropAssociation.