There are many brands of tow bar manufacturers with most manufacturing to a high standard. There are strict British Standards to maintain with all the tow bars sold in the UK adhering to these standards. There are British tow bar manufacturers as well as established oversea makers with UK distribution or retailers.
Due to the costs to set up the manufacturing process, and all of the jigs necessary to provide a complete range of tow bars, the industry sees very few new entrants. This means the established businesses all have a solid track record.
It is worth taking some time in research, as different makers offer slightly differing options on certain vehicles, and it’s often valuable to take advice from an independent fitter, who can advise on the best tow bar that suits your particular circumstances/requirements.
For more information about tow bar manufacturers visit - The National Trailer and Towing Association.