First of all I thought this company had gone down the tubes, but obviously not. Anyway whilst researching an Evaga founders edition 1080 I came upon there site and noted that they were selling the card for 60 quid less than Overclockers where I would normally buy my gear. So anyone used Yoyotech recently? Yoyotech. Overclockers.
Not recently, but they got bought out when they were going down the pan. As far as I'm aware most of the old team still work there so you should be alright.
I work on the same business park as them and have brought the odd couple of bits from them as I can pop in and collect. They have an online chat that was useful when I was having issues with M2 compatibility on 1151 boards. I have have no complaints and they definitely exist.
I used them when they were on (or just off) Tottenham Court Road. That was C2005 though so probably not much help.
The question is academic now as the GPU has jumped £50 in price just when my refund came though. So bought a Gigabyte 1080 from Overclockers instead.