Name  | active from | active to | |
| Kyspersky, Martin E. | 1993 | | |
| L. Ertl | | | |
| L.E.S. | | | |
| L+H | | | |
| Labus, Pepa | 1984 | | |
| Labyrint | | | |
| Lade | 2000 | |  |
| Lady Jane | 1983 | | |
| Lahka muza | 1984 | | |
| Laiferova, Marcela | 1964 | | |
| Lakome Barky | 2001 | | |
| Lamaci zapesti | | | |
| Lament | 2022 | | |
| Landa, Daniel | 1987 | | |
| Landmine Spring | | | |
| Langerova, Aneta | 2000 | | |
| Lanugo | 2006 | | |
| Lapcikova, Zuzana | | | |
| Laputa | 2000 | 2004 | |
| Lasica - Satinsky | 1961 | | |
| Lasica, Milan | 1961 | | |
| Laufer, Josef | 1960 | | |
| Laura a jeji tygri | 1985 | | |
| LBT | 1982 | 1983 | |
| Le Chavendar | 2000 | | |
| Leaders! | 2007 | | |
| Ledecky, Janek | 1982 | | |
| Lego | 1988 | 1989 | |
| Lehotsky, Jan | 1966 | | |
| Lemon Nashville Orchestra | 1988 | | |
