| Sandover & Co | W.M. | Hay Street | Overland 30 H.P. | P 665 | Perth Municipality | 1917-18 |
| Sandover & Co | Wm. | Mouatt Street | G.W.K. 8 H.P. (garuda wisnu kencana) | F 48 | Fremantle Municipality | 1915 |
| Sandover & Co | Wm. | Mouatt Street | Triumph 3½ H.P. Motorcycle | F 80 | Fremantle Municipality | 1915 |
| Sandover & Co | Wm. | Perth | Paige 20 H.P. | P 487 | Perth Municipality | 1915 |
| Sandover & Co | Wm. | Mouatt Street | G.W.K. 8 H.P. | F 48 | Fremantle Municipality | 1916 |
| Sandover & Co | Wm. | Hay Street. | Renault 8 H.P. | P 11 | Perth Municipality | 1917-18 |
| Sandover & Co | Wm. | Hay Street | Ford 20 H.P. | P 765 | Perth Municipality | 1917-18 |
| Sandover & Co | Wm. | Hay Street | Overland 30 H.P. | P 843 | Perth Municipality | 1917-18 |
| Sandover & Co | Wm. | Hay Street | Ford 20 H.P. | P 924 | Perth Municipality | 1917-18 |
| Sandover & Co | Wm. | Hay Street | Ford 20 H.P. | P 1021 | Perth Municipality | 1917-18 |
| Sandover & Co | Wm. | Hay Street | Triumph 3½ H.P. Motorcycle | P 42 | Perth Municipality | 1917-18 |
| Sandover & Co | Wm. | Hay Street | Triumph 3½ H.P. Motorcycle | P 301 | Perth Municipality | 1917-18 |
| Sandover & Co | Wm. | Hay Street | Ford 20 H.P. | P 924 | Perth Municipality | 1919 |
| Sandover & Co | Wm. | Hay Street | Ford 20 H.P. | P 1021 | Perth Municipality | 1919 |
| Sandow | J. B. | Lower Chittering | Federal-Knight Wagon | CH ● 44 | Chittering Road Board | 1927-28 |
| Sands | A. G. | Albany | Indian 7 H.P. Motorcycle | A 3 | Albany Municipality | 1917-18 |
| Sands | A. G. | Albany | Indian 7 H.P. | A 3 | Albany Municipality | 1919 |
| Sands | G. | Lake Grace | Oldsmobile | LG ● 9 | Lake Grace Road Board | 1924-25 |
| Sands | G. | Newdegate | Oldsmobile | LG ● 9 | Lake Grace Road Board | 1925-26 |
| Sands | G. | Lake Grace | Oldsmobile | LG ● 9 | Lake Grace Road Board | 1926-27 |
| Sands | G. | Newdegate | Oldsmobile | LG ● 9 | Lake Grace Road Board | 1927-28 |
| Sands | George | Lake Grace | Ford | LG ● 9 | Lake Grace Road Board | 1923-24 |
| Sands | H. A. | 96 Nicholson Road, Subiaco | Dodge | 6563 | Metro Private Car | 1924-25 |
| Sands | J. H. | Mandurah Road | Ford Wagon | 12229 | Metro Private Car | 1926-27 |
| Sands | J. H. | Fairlight Street, Cottesloe Beach | Ford Truck | 12229 | Metro Private Car | 1927-28 |
| Sands | R. J. H. | Wagin | Ford | WN 18 | Wagin Municipality | 1925-26 |
| Sands | R. J. H. | Wagin | Ford | WN ● 18 | Wagin Municipality | 1926-27 |
| Sands | R. J. H. | Wagin | Ford | WN 18 | Wagin Municipality | 1927-28 |
| Sands | Robert J. H. | Wagin | Ford | WM ● 18 | Wagin Municipality | 1923-24 |
| Sands | Robt. | Wagin | Chevrolet Truck | WN 96 | Wagin Municipality | 1927-28 |
| Sandstone Pastoral Co | - | Sandstone | Hupmobile 20 H.P. | BR ● 7 | Black Range Road Board | 1922-23 |
| Sandstone Pastoral Co | - | Sandstone | Dodge | BR ● 5 | Black Range Road Board | 1923-24 |
| Sandstorm | V. E. | 76 Derby Road, Subiaco | Chevrolet | 12467 | Metro Private Car | 1927-28 |
| Sanfead | T. | Coolgardie | Dodge Truck | CG ● 28 | Coolgardie Road Board | 1925-26 |
| Sanger | F. C. | Traylen Road, Bayswater | Rugby | 2076 | Metro Private Car | 1927-28 |
| Sangstar | G. B. | Kulikup | Reo Truck | BU ● 68 | Upper Blackwood Road Board | 1926-27 |
| Sangster | G. B. | Kulikup | Reo Truck | BU ● 68 | Upper Blackwood Road Board | 1927-28 |
| Sanguinetti | F. | Mornington | Ford | H ● 85 | Harvey Road Board | 1926-27 |
| Sanguinetti | F. | Mornington | Ford | H ● 85 | Harvey Road Board | 1927-28 |
| Sanitarium Health Food Co | - | Barrack Street | Ford Wagon | 1402 | Metro Private Car | 1922-23 |
| Sanitarium Health Food Co | - | Barrack Street, Perth | Ford Wagon | 1402 | Metro Private Car | 1923-24 |
| Sanitarium Health Food Co | - | 116 Barrack Street, Perth | Ford Wagon | 6257 | Metro Private Car | 1924-25 |
| Sanitarium Health Food Co | - | 757 Hay Street, Perth | Ford Wagon | 6257 | Metro Private Car | 1925-26 |
| Sanitarium Health Food Co | - | Perth | Morris Cowley | 11736 | Metro Private Car | 1927-28 |
| Sanks | R. & B. | Banyup | Ford Truck | 9767 | Metro Private Car | 1927-28 |
| Sansom | F. | Yelbeni | Overland | KTY ● 111 | Kununoppin-Trayning Road Board | 1925-26 |
| Sansom | F. | Yelbeni | Chevrolet | KTY ● 111 | Kununoppin-Trayning Road Board | 1927-28 |
| Sansom | T. C. | Acton Park | Chevrolet | SU ● 39 | Sussex Road Board | 1926-27 |
| Sansom | T. C. | Acton Park | Chevrolet | SU ● 39 | Sussex Road Board | 1927-28 |
| Sansom | T. G. | Busselton | Chevrolet | SU ● 39 | Sussex Road Board | 1925-26 |
