| ARROWBILE - AEROBILE | TRICICLO-AVIÓN | USA | SAN DIEGO - SANTA MARTA (LA) - CALIFORNIA | 1937 - 1957 |
| ARROWHEAD | TRICAR | USA | LOS ANGELES - CALIFORNIA | 1936 |
| ARSENAL | 3RUEDAS | REINO UNIDO | St. ALBANS - HERTFORDSHIRE | 1898 |
| ART | TRIKE | USA | - | 2002 |
| ARTALL HOLLY | ESCÚTER | CHINA | NANJING - JIANGSU | 1979 |
| ARTEMAN | VELOMOTOR | ESPAÑA | SEVILLA - SEVILLA | 1954 |
| ARTÉS | MOTOCICLETA | ESPAÑA | BARCELONA - BARCELONA | 1921 - 1965 |
| ARZANI | MOTOCICLETA | ITALIA | - | 1904 |
| ARZENS | TRICAR | FRANCIA | PARIS - SEINE | 1942 |
| AS SMART | ESCÚTER | CHINA | WENLING - ZHEJIANG | |
| AS SPECIAL | TRICAR | SUECIA | BORÅS - VÄSTRA GÖTALAND | 1948 |
| ASAHI | MOTOCICLETA | JAPÓN | ŌTA-KU (TOKYO) - TOKYO | 1909 - 1953 |
| ASAKA PUCHI | TRICICLO | JAPÓN | - | 1980 |
| ASB (Bielefeld), BECKMANN | ESCÚTER | ALEMANIA | QUELLE-BIELEFELD - NORDRHEIN-WESTFALEN | 1953 |
| ASCO (Derbyshire) | SIDECAR | REINO UNIDO | - DERBYSHIRE | 1980,s |
| ASCOT (Islington) | MOTOCICLETA | REINO UNIDO | ISLINGTON - MIDDLESEX | 1904 |
| ASCOT (Melbourne) | MOTOCICLETA | AUSTRALIA | ADELAIDE - SOUTH AUSTRALIA | 1909 |
| ASCOT-PULLIN | MOTOCICLETA | REINO UNIDO | LETCHWORTH - HERTFORDSHIRE | 1928 |
| ASD | MOTOCICLETA | AUSTRALIA | MILDURA - VICTORIA | 1912 |
| ASDOMOBIL | TRICICLO | ALEMANIA IMPERIAL | DÜSSELDORF - WESTFALEN | 1913 |