| Aus Prospecting & Development Syndicate Ltd | - | Mica Mines | Ford | GU ● 32 | Upper Gascoyne Road Board | 1926-27 |
| Aus Prospecting & Development Syndicate Ltd | - | Mica Mines | Dodge | GU ● 53 | Upper Gascoyne Road Board | 1926-27 |
| Aus Prospecting & Development Syndicate Ltd | - | Mica Mines | Chev Truck | GU ● 71 | Upper Gascoyne Road Board | 1926-27 |
| Aust Alliance Ins Co | - | Saint George's Terrace, Perth | Dodge | 8780 | Metro Private Car | 1926-27 |
| Aust Life Ass Co | - | Saint George's Terrace, Perth | Ford | 5794 | Metro Private Car | 1924-25 |
| Aust M. Prov. As Soc. Ltd | - | Saint George's Terrace, Perth | Ford | 299 | Metro Private Car | 1926-27 |
| Aust. Alliance Insurance Co | - | Saint George's Terrace, Perth | Dodge | 8780 | Metro Private Car | 1925-26 |
| Aust. Alliance Insurance Co | - | Saint George's Terrace, Perth | Dodge | 8780 | Metro Private Car | 1927-28 |
| Aust. Glass Manufacturing | - | Kensington Street, East Perth | Oldsmobile | 2567 | Metro Private Car | 1927-28 |
| Aust. Prov. As. Society Ltd | - | Saint George's Terrace, Perth | Ford | 299 | Metro Private Car | 1923-24 |
| Aust. Workers Union | - | 40 Stirling Street, Perth | Ford | 2553 | Metro Private Car | 1927-28 |
| Aust. Wroker Union | - | Marine Terrace, | Triumph 4 H.P. Motorcycle | GN 25 | Geraldton Municipality | 1922-23 |
| Austen | G. | Bridgetown | Buick | B ● 74 | Bridgetown Road Board | 1925-26 |
| Austen | H. E. | Bunbury | Chevrolet | BY 35 | Bunbury Municipality | 1927-28 |
| Austen | H. W. | Toodyay | B.S.A. 4 H.P. | T 9 | Toodyay Road Board | 1916 |
| Austen | W. | Waroona | Chevrolet | DK ● 29 | Drakesbrook Road Board | 1926-27 |
| Austey | B. | - | Studebaker | P ● 58 | Perth Road Board | 1919 |
| Austey | B. | 94 Alma Road, North Perth | Dodge | 8864 | Metro Private Car | 1926-27 |
| Austey | B. | 94 Alma Road, North Perth | Dodge | 8864 | Metro Private Car | 1927-28 |
| Austin | A. E. | 251 Hay Street, Perth | Citroen | 4733 | Metro Private Car | 1923-24 |
| Austin | A. E. | 251 Hay Street, Perth | Citroen | 4733 | Metro Private Car | 1924-25 |
| Austin | A. E. | 251 Hay Street, Perth | Citroen | 4733 | Metro Private Car | 1925-26 |
| Austin | A. E. | 251 Hay Street, Perth | Citroen | 4733 | Metro Private Car | 1926-27 |
| Austin | A. E. | 251 Hay Street, East Perth | Chevrolet | 13627 | Metro Private Car | 1926-27 |
| Austin | A. E. | 251 Hay Street, East Perth | Chevrolet | 13627 | Metro Private Car | 1927-28 |
| Austin | A. Junr. | Katanning | Ford Truck | KA ● 304 | Katanning Road Board | 1927-28 |
| Austin | C. T. | Gnowangerup | Overland | GN ● 111 | Gnowangerup Road Board | 1925-26 |
| Austin | C. T. | Gnowangerup | Overland | GN ● 111 | Gnowangerup Road Board | 1926-27 |
| Austin | D. | 22 Regent Street, Mount Lawley | Dodge | 8606 | Metro Private Car | 1925-26 |
| Austin | D. | 22 Regent Street, Mount Lawley | Dodge | 8606 | Metro Private Car | 1926-27 |
| Austin | Douglas | 14 Ferrar Street, Mount Lawley | Dodge | 8606 | Metro Private Car | 1927-28 |
| Austin | Edward | 39 Sussex Street, Victoria Park | Chevrolet | 8063 | Metro Private Car | 1927-28 |
| Austin | G. | Bridgetown | Buick | B ● 74 | Bridgetown Road Board | 1926-27 |
| Austin | J. R. | 251 Hay Street, Perth | Indian & Sidecar | 848 | Metro Motorcycle | 1922-23 |
| Austin | L. | | Chevrolet | A 94 | Municipality of Albany | 1926-27 |
| Austin | L. D. | Barracoppin | Ford | MD ● 85 | Merredin Road Board | 1924-25 |
| Austin | L. D. | Burracoppin | Ford | MD ● 85 | Merredin Road Board | 1925-26 |
| Austin | L. D. | Burracoppin | Ford | MD ● 85 | Merredin Road Board | 1926-27 |
| Austin | L. D. | Burracoppin | Rugby | MD ● 85 | Merredin Road Board | 1927-28 |
| Austin | M. L. | Westonia | Chevrolet | WT ● 65 | Westonia Road Board | 1927-28 |
| Austin | P. J. | Denmark | Dodge | DE ● 46 | Denmark Road Board | 1927-28 |
| Austin | R. J. | Albany | Rugby | A 164 | Albany Municipality | 1927-28 |
| Austin | W. | North Dandalup | Ford | MY ● 57 | Murray Road Board | 1925-26 |
| Austral Motor Co | - | Hay Street, Perth | Rickenbacker | 9060 | Metro Private Car | 1925-26 |
| Austral Motor Ltd | - | Queen Victoria Street, Fremantle | Bean | 5050 | Metro Private Car | 1924-25 |
| Austral Motors Ltd | - | Hay Street, Perth | Bean | 9093 | Metro Private Car | 1925-26 |
| Austral Motors Ltd | - | Hay Street, Perth | Bean | 9094 | Metro Private Car | 1925-26 |
| Austral Motors Ltd | - | Hay Street, Perth | Dealers | 20098 | Metro Dealers Car | 1925-26 |
| Austral Motors Ltd | - | Hay Street, Perth | Dealers | 20122 | Metro Dealers Car | 1925-26 |
| Austral Motors Ltd | - | Perth | Dealers | 20122 | Metro Dealers Car | 1926-27 |
