- Association of Rootes Car Clubs (ARCC)
- Association of Singer Car Owners
- Avenger and Sunbeam Owners Club
- Brochures Museum
- Brotherhood of the Three Spires
- Classic Sunbeam & Rootes de France
- Colorado Association of Tiger Owners (CATO)
- Fehac
- Hillman Owners Club
- KNAC
- Retroaccessoires
- Rootes Club of Belgium
- Rootes Parts Service
- Scottish Rootes Enthusiasts
- Singer Owners Club
- Sunbeam Alpine Owners Club
- Sunbeam Club de France
- Sunbeam Club Duitsland
- Sunbeam Lotus Owners Club
- Sunbeam Rapier Owners Club
- Sunbeam Talbot Alpine Register
- Sunbeam Tiger Owners Club
- The Humber Car Club of Western Australia
- The Imp Club
- The Pacific Tiger Club USA
- The Rootes Club of Denmark
- The Sunbeam Alpine Channel
- The Sunbeam Owners Club of New South Wales
- The Sunbeam Owners Club of Queensland