UK A-Frame Suppliers/Manufacturers.
Armitages. Inertia braked. West Ferriby, Yorkshire.
https://armitages.uk/
Caratow. Inertia braked. Wimborne, Dorset.
http://caratow.com/
Kaytow. Inertia braked. Brierley Hill, West Midlands.
https://www.kaytow.co.uk
LNB. Electronic activated. Bristol, Somerset.
http://www.lnbleisure.co.uk (uses Roadmaster Invisibrake)
Motazone. Supplier of ready converted vehicles. Inertia and Electronic activated. Pontypool, South Wales
https://www.towacar.co.uk/
TAF. Inertia braked. Chesterfield, Derbyshire
https://www.towingaframes.co.uk
Tow A Frame. Electronic activated. Hayling Island, Hampshire.
(https://towaframeltd.co.uk/. Uses Demco Stay-IN-Play Duo)
Towbars2Towcars. Electronic activated. Grimsby, Lincolnshire.
http://www.tow-bars2tow-cars.com
Towtal. Inertia braked. Stoke on Trent, Staffs.
https://towtal.co.uk
Unibrake. Electronic activated. Hailsham, East Sussex.
http://www.unibrake.co.uk. Uses Stealth Products.
NOTE: additionally, there are agents around the U.K. for some of these suppliers.
f you are aware of other major suppliers not included in this list, please message me the details.
Inclusion here does not mean I endorse their product!