Governments

- European Union
- European Parliament
- Council of the European Union
- The European Commission
- European Central Bank
- European Investment Bank
- The Court of Justice of the European Communities
- Committee of the Regions
- European Training Foundation
- Europol
- European Space Agency
- European Environment Agency

Organizations

- European Union Web Ring
- Europolitique
- Europages
- European Forum for Democracy and Solidarity
- The European students' association (AEGEE)
- Union of European Federalists - UEF
- European Movement - Mouvement Européen
- Young European Federalists

Parties

- European People's Party
- Party of European Socialists
- Alliance of Liberals and Democrats for Europe
- Greens
- Alliance of European Conservatives and Reformists
- The Party of the European Left
- Movement for a Europe of Liberties and Democracy
- European Democratic Party
- European Free Alliance
- European Alliance for Freedom
- Alliance of European National Movements
- European Christian Political Movement
- EU Democrats