| | Austria (2) |
|---|
| LASK Linz, | | Rapid Wien, |
| | | Bélgica (2) |
|---|
| AA Gent, | | Cercle Brugge, |
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| Bosnia y Herzegovina (1) |
|---|
| FK Borac Banja Luka, |
| | Chipre (3) |
|---|
| APOEL Nicosia, | | Omonia Nicosia, | | Pafos FC, |
| | República Checa (1) |
|---|
| Mladá Boleslav, |
| | Dinamarca (1) |
|---|
| FC København, |
|
| Inglaterra (2) |
|---|
| Bye, | | Chelsea, |
| | Finlandia (1) |
|---|
| HJK Helsinki, |
| | |
| Islandia (1) |
|---|
| Víkingur Reykjavík, |
| | Irlanda (1) |
|---|
| Shamrock Rovers, |
| | |
| Moldova (1) |
|---|
| Petrocub Hincesti, |
| | Irlanda del Norte (1) |
|---|
| Larne FC, |
| | | Polonia (2) |
|---|
| Jagiellonia, | | Legia Warszawa, |
|
| Portugal (1) |
|---|
| Vitória Guimarães, |
| | | Serbia (1) |
|---|
| TSC Backa Topola, |
| | Eslovenia (2) |
|---|
| NK Celje, | | Olimpija Ljubljana, |
|
| | Suecia (1) |
|---|
| Djurgardens IF, |
| | Suiza (2) |
|---|
| FC Lugano, | | FC St. Gallen, |
| | Turquía (1) |
|---|
| Istanbul Başakşehir, |
|
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