They are made by Vulfix.
The TOBS BR405 is a rebranded Vulfix 405 "Burlington", and the TOBS BR406 is a rebranded Vulfix 406 "Strand".
The other are a Vulfx 513 "Picadilly" and the Vulfix 2189 travel brush . You can see them all here.
Said that, I've tried some Vulfix boar (a 2234h), and I didn't like it. I ended up re-knotting mine. It was floppy, and the density and backbone were nowhere near my Omegas or Semogues.
Ah! Thanks for the info, the Taylors brushes look a little classier but I guess they're just photographed more skillfully!