| Marca | Modelo | País | Localización | Año |
|---|---|---|---|---|
| ARMINIUS | MOTOCICLETA | ALEMANIA IMPERIAL | - | |
| ARMIS | MOTOCICLETA | REINO UNIDO | BIRMINGHAM - WARWICKSHIRE | 1920 |
| ARMOR | MOTOCICLETA | FRANCIA | COURBEVOIE - SEINE | 1910 - 1945 |
| ARMSTRONG (Bolton) | MOTOCICLETA | REINO UNIDO | BOLTON - LANCASHIRE | 1980 |
| ARMSTRONG (Fulham) | TRICICLO | REINO UNIDO | FULHAM - MIDDLESEX | 1914 |
| ARMSTRONG (London) | MOTOCICLETA | REINO UNIDO | LONDON - LONDON COUNTY | 1913 |
| ARMSTRONG (Westminster) | MOTOCICLETA | REINO UNIDO | WESTMINSTER - LONDON COUNTY | 1902 |
| ARNO (Coventry) | MOTOCICLETA | REINO UNIDO | COVENTRY - WARWICKSHIRE | 1906 |
| ARNOTT (London) | MOTOR | REINO UNIDO | LONDON - LONDON COUNTY | 1951 |
| ARO (D) | SIDECAR | ALEMANIA | - | 1975 |
| ARO (NL) | VELOMOTOR | PAISES BAJOS | - | 1950 |
| AROLA | TRICICLO | FRANCIA | CORBAS - AIX-les-BAINS - RHÔNE - SAVOIE | 1976 |
| AROSIO | ESCÚTER | ITALIA | RHO - MILANO | 1950 |
| ARQIN | ESCÚTER | AUSTRALIA | SYDNEY - NEW SOUTH WALES | 2007 |
| ARROW (Chicago) | MOTOCICLETA | USA | CHICAGO - ILLINOIS | 1909 |
| ARROW (Drammen) | CICLOMOTOR | NORUEGA | DRAMMEN - BUSKERUD | 1963 |
| ARROW (Duncan) | MOTOCICLETA | CANADA | DUNCAN - BRITISH COLUMBIA | 1996 |
| ARROW - KIRMER | MOTOCICLETA | REINO UNIDO | BIRMINGHAM - WARWICKSHIRE | 1913 |
| ARROWBILE - AEROBILE | TRICICLO-AVIÓN | USA | SAN DIEGO - CALIFORNIA | 1937 - 1957 |
| ARROWHEAD | TRICAR | USA | LOS ANGELES - CALIFORNIA | 1936 |