This list is incomplete. You can help by adding correctly sourced information about other manufacturers. As of 2018 there are approximately 35 active British car manufacturers and over 500 defunct British car manufacturers.
If you want your car brand added to the list or know of any car brands that should be on it, or any errors in the list, please let us know in the comments section below and we will make the necessary changes. Thanks for your help in keeping this list the most comprehensive and up to date list of car brands on the web.