From what I can tell from the picture, it looks like Swiss Vans own. If you go onto their website and look at the customising pages you'll see it as part of their WASP package. If you give them a ring and ask for Steve, who is the parts chap he may well be able to supply/ fit one without the rest of the WASP parts.
He is really helpful, I spoke to him a couple of months ago as they do a T5 style rear spoiler for the T6, as the normal T5 one does not fit straight on - I think it looks much smarter than the T6 OEM version. Just waiting for them to produce that particular pro it in plastic rather than fibreglass, which should be available in Jan.
Have a look at Andythom188's van in team blackberry, he has the same item, and that is where his van came from.