| Bayley Bros | - | Denmark | Ford Truck | DE ● 12 | Denmark Road Board | 1927-28 |
| Bayley Bros | - | Denmark | Chevrolet | DE ● 50 | Denmark Road Board | 1927-28 |
| Baylis | R. | Meekatharra | Ford | 7299 | Metro Private Car | 1926-27 |
| Bayliss | D. | Coomberdale | Ford | M ● 53 | Moora Road Board | 1924-25 |
| Bayliss | D. | Coomberdale | Ford | M ● 53 | Moora Road Board | 1925-26 |
| Bayliss | D. | Coomberdale | Ford | M ● 53 | Moora Road Board | 1926-27 |
| Bayliss | D. | Coomberdale | Ford | M ● 53 | Moora Road Board | 1927-28 |
| Bayliss | Dave | Coomberdale | Ford | M ● 52 | Moora Road Board | 1923-24 |
| Bayliss | E. B. | 13 Pier Street, Perth | Essex | 14021 | Metro Private Car | 1926-27 |
| Bayliss | E. B. | 13 Pier Street, Perth | Essex | 14021 | Metro Private Car | 1927-28 |
| Bayliss | E. I. | Dandaragan | Chevrolet | DN ● 20 | Dandaragan Road Board | 1927-28 |
| Bayliss | R. | 145 Edward Street, East Perth | Buick | 1546 | Metro Private Car | 1927-28 |
| Bayliss | R. | 31 Hopetoun Terrace, West Subiaco | Ford | 7771 | Metro Private Car | 1927-28 |
| Bayliss | Robert | Corrigin | Buick | CR ● 285 | Corrigin Road Board | 1927-28 |
| Bayly | Rachael | 2 Northfolk Street, North Perth | Singer | 834 | Metro Private Car | 1927-28 |
| Bayman | C. | 18 Myrtle Street | Bradbury 4¼ H.P. Motorcycle | P 740 | Perth Municipality | 1919 |
| Bayman | Mr | 18 Myrtle Street | Bradbury 4¼ H.P. Motorcycle | P 740 | Perth Municipality | 1917-18 |
| Bays Delivery Service | - | 376 Murray Street, Perth | Federal | 3750 | Metro Hire or Trade | 1925-26 |
| Bays Delivery Service | - | 202 Heytesbury Road, Subiaco | Federal | 8528 | Metro Private Car | 1925-26 |
| Bays Delivery Service | - | 202 Heytesbury Road, Subiaco | Federal | 8529 | Metro Private Car | 1925-26 |
| Bays Delivery Service | - | 202 Heytesbury Road, Subiaco | Federal | 8528 | Metro Private Car | 1926-27 |
| Bays Delivery Service | - | 202 Heytesbury Road, Subiaco | Federal | 8529 | Metro Private Car | 1926-27 |
| Bays Delivery Service | - | 376 Murray Street, Perth | Federal | 3750 | Metro Hire or Trade | 1927-28 |
| Bays Delivery Service | - | Murray Street, Perth | Rugby Van | 10708 | Metro Hire or Trade | 1927-28 |
| Bays Delivery Service | - | Murray Street, Perth | Rugby Van | 10709 | Metro Hire or Trade | 1927-28 |
| Bays Delivery Service | - | Perth | Federal-Knight Wagon | 10739 | Metro Hire or Trade | 1927-28 |
| Bays Delivery Services | - | 376 Murray Street, Perth | Federal | 3750 | Metro Hire or Trade | 1926-27 |
| Bays Ltd | - | 917 Hay Street, Perth | Republic Truck | 3047 | Metro Hire or Trade | 1927-28 |
| Bays Ltd | - | Hay Street, Perth | Rugby Van | 10714 | Metro Hire or Trade | 1927-28 |
| Bays Motor Delivery | - | 202 Heytesbury Road, Subiaco | Ford Wagon | 3026 | Metro Private Car | 1924-25 |
| Bays Motor Delivery | - | 204 Heytesbury Road, Subiaco | Ford Wagon | 3025 | Metropolitan Hire and Trade Cars | 1923-24 |
| Bays Motor Delivery | - | 203 Heytesbury Road, Subiaco | Ford truck | 3026 | Metropolitan Hire and Trade Cars | 1923-24 |
| Bays Motor Delivery | - | 202 Heytesbury Road, Subiaco | Ford Wagon | 3351 | Metropolitan Hire and Trade Cars | 1923-24 |
| Bays Motor Delivery | - | 202 Heytesbury Road, Subiaco | Ford Wagon | 3429 | Metropolitan Hire and Trade Cars | 1923-24 |
| Bays Motor Delivery | - | 202 Heytesbury Road, Subiaco | Ford Wagon | 3351 | Metro Private Car | 1924-25 |
| Bays Motor Delivery | - | 202 Heytesbury Road, Subiaco | Ford Wagon | 3429 | Metro Private Car | 1924-25 |
| Bays Motor Delivery | - | 202 Heytesbury Road, Subiaco | Ford Wagon | 3351 | Metro Hire or Trade | 1925-26 |
| Bays Motor Service | - | 380 Murray Street, Perth | Federal | 10058 | Metro Hire or Trade | 1926-27 |
| Bays Motor Service | - | 380 Murray Street, Perth | Federal | 10058 | Metro Hire or Trade | 1927-28 |
| Bays Transport | - | Perth | Ruggles Wagon | 10738 | Metro Hire or Trade | 1927-28 |
| Bays Transport | - | Perth | Federal-Knight Wagon | 10740 | Metro Hire or Trade | 1927-28 |
| Bays Transport | - | 917 Hay Street, Perth | Federal-Knight Truck | 10779 | Metro Hire or Trade | 1927-28 |
| Bays Transport Ltd | - | 380 Murray Street, Perth | Federal | 10055 | Metro Hire or Trade | 1926-27 |
| Bayshaw | - | Pingelly | Hupmobile | PN ● 70 | Pingelly Road Board | 1924-25 |
| Bayshaw | C. | Pingelly | Hupmobile | PN ● 70 | Pingelly Road Board | 1924-25 |
| Bayshaw | C. | Pingelly | Hupmobile | PN ● 70 | Pingelly Road Board | 1925-26 |
| Bayshaw | C. | Pingelly | Hupmobile | PN ● 70 | Pingelly Road Board | 1927-28 |
| Bayswater Road Board | - | Bayswater | Ford Wagon | 7339 | Metro Private Car | 1925-26 |
| Bayswater Road Board | - | Bayswater | Ford Wagon | 7339 | Metro Private Car | 1926-27 |
| Bayswater Road Board | - | Bayswater | Republic | 9548 | Metro Private Car | 1926-27 |
