| | | | Belgium (2) |
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| AA Gent, | | Anderlecht, |
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| | Cyprus (2) |
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| AEK Larnaca, | | Apollon Limassol, |
| | Czech Republic (2) |
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| FC Slovácko, | | Slavia Praha, |
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| England (1) |
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| West Ham United, |
| | France (1) |
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| Olympique Nice, |
| | | Ireland (1) |
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| Shamrock Rovers, |
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| Israel (1) |
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| Hapoel Beer-Sheva, |
| | Italy (2) |
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| Fiorentina, | | Lazio Roma, |
| | |
| Liechtenstein (1) |
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| FC Vaduz, |
| | Lithuania (1) |
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| Zalgiris Vilnius, |
| | Moldova (1) |
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| Sheriff Tiraspol, |
| |
| Norway (2) |
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| Bodø-Glimt, | | Molde FK, |
| | | Portugal (1) |
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| Sporting Braga, |
| | Romania (2) |
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| CFR Cluj, | | FCSB, |
|
| | | Slovakia (1) |
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| Slovan Bratislava, |
| |
| Sweden (1) |
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| Djurgardens IF, |
| | | Turkey (3) |
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| Istanbul Başakşehir, | | Sivasspor, | | Trabzonspor, |
| |