| name | legal form | image | date founded | city Headquarters | administrative division Headquarters | country Headquarters | continent Headquarters | number of members | Website | date dissolved |
|---|---|---|---|---|---|---|---|---|---|---|
| Eurocontrol |  | 1960 | City of Brussels | Brussels | Belgium | Europe | 41 | Website | ||
| Association of European Airlines |  | 1952 | City of Brussels | Brussels | Belgium | Europe | 29 | Website | ||
| NATO |  | 04/04/1949 | Brüssel | Brussels | Belgium | Europe | 28 | Website | ||
| Young European Federalists |  | 1972 | City of Brussels | Brussels | Belgium | Europe | 25,000 | Website | ||
| Network of International Business Schools | 1993 | Heverlee | Flemish Region | Belgium | Europe | 70 | Website |