CER represents around 70 members and partners.

 71 %   of the European rail network length

 76 %   of the European rail freight business

 92 %   of rail passenger operations in Europe

CER has a diversity of members ranging from long-established bodies to new entrants and both private and public-sector organisations

CER members and partners come from

EU-27, the United Kingdom, Norway, Switzerland, EU candidate countries (Albania, the Republic of North Macedonia, Montenegro, Serbia), as well as Bosnia and Herzegovina. CER also has partners in Georgia, Israel, Japan, Moldova, and Ukraine.