| SPAIN |
| Framework nation since 1994 |
| 21% of HQ Eurocorps |
| Troops : 1 division |
| FRANCE |
| Framework nation since 1992 |
| 34% of HQ Eurocorps |
| Troops : 1 division |
| BELGIUM |
| Framework nation since 1993 |
| 16% of HQ Eurocorps |
| Troops : 1 brigade |
| GERMANY |
| Framework nation since 1992 |
| 29% of HQ Eurocorps |
| Troops : 1 division |
| LUXEMBOURG |
| Framework nation since 1996 |
| 2 military at HQ Eurocorps |
| Troops : 1 company |
| AUSTRIA |
| Associated nation since 2002 |
| 1 officer at HQ Eurocorps |
| GREECE |
| Associated nation since 2002 |
| 2 officers at HQ Eurocorps |
| TURKEY |
| Associated nation since 2002 |
| 3 officers at HQ Eurocorps |
| POLAND |
| Associated nation since 2002 |
| 18 military at HQ Eurocorps |
| ITALY |
| Associated nation since 2009 |
| 2 officers at HQ Eurocorps |