Watsonian Squire were the Royal Enfield importer, but they had a falling out with the factory and the present position is unclear, according to my friends at 3 Cross Motorcycles who used to try to sell them.
They are, in may ways, like a Morgan in that they need constant attention but are actually very reliable.
To be honest it would make sense for Morgan to become the importer...the customer base and culture of ownership would match perfectly.