| | UMAG ST MALMO | 1985 | 1992 |
| | UMAN | 1947 | 1950 |
| | UMBALLA | 1875 | 1875 |
| | UMBERTO D'AMATO | 1997 | 1996 |
| | UMEAZEE | 1984 | 1984 |
| | UMIAVUT | 1988 | 2001 |
| | UMIVERSAL EXPRESS II | 1965 | 1989 |
| | UND AKDENIZ | 2000 | 2000 |
| | UND KARADENIZ | 2000 | 2000 |
| | UNDEN | 1961 | 1961 |
| | UNDEN | 1969 | 1969 |
| | UNDEN | 1984 | 1984 |
| | UNGGULI | 1957 | 1974 |
| | UNI 4 | 1985 | 2003 |
| | UNI YAMANI | 1973 | 1992 |
| | UNICARRIER | 1976 | 1991 |
| | UNICOASTER | 1952 | 1967 |
| | UNICONDOR | 1979 | 1996 |
| | UNICOSTA | 1980 | 1993 |
| | UNI-E | 1948 | 1948 |
| | UNIEX | 1940 | 1968 |
| | UNI-F | 1949 | 1949 |
| | UNIFORM STAR | 1966 | 1984 |
| | UNI-K | 1948 | 1948 |
| | UNILAGO | 1980 | 1995 |
| | UNIMAR | 1980 | 1993 |
| | UNIMAR | 1997 | 2005 |
| | UNIMASTER | 1996 | 1996 |