| Runde | ⊝ Age | Teilnahmen |
| AC Mailand | Achtelfinale | 30,1 | 6 |
| Adanaspor | 1. Runde | - | 1 |
| Ajax Amsterdam | Achtelfinale | 24,8 | 4 |
| Arsenal | Achtelfinale | 14,0 | 3 |
| Ath. Bilbao | 1. Runde | 19,0 | 8 |
| B1903 | 1. Runde | 28,0 | 3 |
| BFC Dynamo | 1. Runde | 21,6 | 2 |
| Benfica | 2. Runde | 16,1 | 1 |
| Braga | 2. Runde | - | 0 |
| D. Tiflis | 2. Runde | 24,0 | 3 |
| Duisburg | Halbfinale | 24,4 | 1 |
| Dundee Unite | 1. Runde | 27,0 | 5 |
| Elfsborg | 1. Runde | 28,5 | 2 |
| Esbjerg | Achtelfinale | 30,5 | 0 |
| Everton | 2. Runde | 24,3 | 4 |
| FC Arges Pit | 2. Runde | - | 3 |
| FC Basel | 1. Runde | 16,8 | 11 |
| FC Carl Zeiss | 2. Runde | 24,8 | 5 |
| FC Twente | 1. Runde | 25,4 | 5 |
| Finn Harps | 1. Runde | - | 2 |
| Galatasaray | 1. Runde | 21,5 | 1 |
| Gijon | 2. Runde | 29,0 | 0 |
| Glentoran | 1. Runde | - | 8 |
| H. Valletta | 1. Runde | - | 3 |
| Hajduk Split | 2. Runde | 22,3 | 2 |
| Hertha BSC | Halbfinale | 25,9 | 6 |
| Hibernian FC | 2. Runde | - | 11 |
| Honved | Viertelfinale | 23,2 | 4 |
| Jeunesse | 1. Runde | 31,0 | 1 |
| Kristiansand | 1. Runde | 26,0 | 3 |
| Kuopio PS | 2. Runde | - | 1 |
| L. Kosice | 1. Runde | 25,0 | 0 |
| Lanerossi Vi | 1. Runde | - | 0 |
| Lausanne | 2. Runde | 27,5 | 9 |
| Levski Sofia | 2. Runde | 26,5 | 2 |
| Lierse | 1. Runde | 4,0 | 1 |
| Lok Leipzig | 1. Runde | 23,0 | 7 |
| Lüttich | 2. Runde | 27,0 | 3 |
| M'gladbach | Finale | 25,0 | 2 |
| MTK Budapest | 1. Runde | 13,0 | 1 |
| Man. City | Viertelfinale | 31,8 | 3 |
| Molde | 1. Runde | 25,0 | 1 |
| Nantes | 1. Runde | 29,2 | 2 |
| Norrköping | 1. Runde | 6,0 | 1 |
| Olympiakos | 1. Runde | 19,7 | 3 |
| Panathinaikos | 1. Runde | 10,5 | 3 |
| Pezoporikos | 1. Runde | - | 1 |
| Poznan | 1. Runde | 22,0 | 0 |
| Pribram | Viertelfinale | 29,0 | 2 |
| R. S. Belgrad | Finale | 12,5 | 7 |
| Rapid Wien | 1. Runde | 21,7 | 6 |
| SSC Neapel | 1. Runde | 29,0 | 7 |
| Straßburg | Achtelfinale | 29,0 | 3 |
| Sturm Graz | 1. Runde | 25,0 | 2 |
| Stuttgart | Achtelfinale | 25,2 | 4 |
| Timisoara | 2. Runde | 33,0 | 0 |
| Torp. Moskau | 2. Runde | - | 1 |
| Trakia Plovd | 1. Runde | - | 2 |
| Turin | 1. Runde | 23,4 | 5 |
| Valencia | Achtelfinale | 23,2 | 10 |
| Vestmannaeyjar | 2. Runde | - | 1 |
| West Brom | Viertelfinale | 24,5 | 1 |
| Wroclaw | Achtelfinale | 29,6 | 1 |
| ZSKA Sofia | 1. Runde | 27,0 | 1 |
Insgesamt nahmen 64 Mannschaften teil. The number of participations refers to tournament participations before the tournament. Lanerossi Vicenza, Lokomotiva Kosice, Sporting Gijon, Sporting Braga, Lech Poznan, Esbjerg FB und FC Timisoara participated in der Europa League for the first time.