Taylor of Old Bond Street
I have just bought and used a jar of their shaving cream in a store in Antwerp.
It gave me a signifficantly smoother shave than with my usual lather.
Of course that is just a one-off test so I might need a couple more to see if this result can be repeated and (importantly) if my skin doesn't itch when I use it.
Most lathers and creams do that (i have a sensitive skin), and I felt some itching on my upper lip, but that could have been a result from being too enthousiastic with the boar hair brush.