Number of countries: 28
Near Neighbour Countries: 1
International Partner Countries: 1
| country | #participants | |
| AT | Austria | 5 |
| BE | Belgium | 6 |
| BA | Bosnia and Herzegovina | 2 |
| HR | Croatia | 3 |
| CY | Cyprus | 1 |
| CZ | Czech Republic | 2 |
| DK | Denmark | 3 |
| FR | France | 18 |
| DE | Germany | 16 |
| GR | Greece | 3 |
| HU | Hungary | 2 |
| IE | Ireland | 5 |
| IS | Israel | 1 |
| IT | Italy | 2 |
| MT | Malta | 3 |
| NL | Netherlands | 9 |
| NO | Norway | 5 |
| PO | Poland | 3 |
| PT | Portugal | 2 |
| RO | Romania | 3 |
| RS | Serbia | 4 |
| SK | Slovakia | 2 |
| SI | Slovenia | 1 |
| ES | Spain | 21 |
| SE | Sweden | 2 |
| CH | Switzerland | 4 |
| TR | Turkey | 3 |
| UA | Ukraine | 2 |
| UK | United Kingdom | 6 |
