1897  1906   The Mo-Car Synd. Ltd., Bluevale, Camlachie, Glasgow
1906  1913   The New Arr.-John. Car Co.Ltd., Paisley, Reinfrewshire
1913  1927   Arrol-Johnston Ltd., Heathall, Dumfries
1927  1931   Arrol-Johnston & Aster Eng Co.Ltd., Heathall, Dumfries