| ECR EGTC Founding Members 2024 | ||
|  | The Netherlands | Member since 1999 | 
|  | Luxemburg | Member since 1999 | 
|  | France | Member since 1999 | 
|  | Germany | Member since 2001 | 
|  | Ireland | Member since 2001 | 
|  | Poland | Member since 2004 | 
|  | Croatia | Member since 2015 | 
| ECR EGTC New Members | ||
|  | Czech Republic | Member since 2025 | 
|  | Portugal | Member since 2025 | 
|  | Romania | Member since 2025 | 
