Yeah it's called UKG:
http://ukgraders.co.uk/
They grade a lot of figures. Star Wars, Gi Joe etc. but also do video games. I took a few of my games for them to grade and was overall happy with the service, took a bit longer than I'd like but I'm impatient. The dad of the guy who runs it lives near me so I can drop stuff off with him, saves on postage but best of all I know some Muppet at a sorting office isn't going to kick my precious items around.
All we need in the UK now is a comic book graders. I have some I'd like slabbed, but the postage and turnaround time to send stuff to CGC puts me off.