There's a few places who deal with AI Fit and fertile - Preston UK clone - down south somewhere Vetrepo - Cambridge TheAiCentre - Bristol Millhouse - Bridgend
I'd recomend fit and fertile, I have also heard good things about UK clone.
I'm subscribing to this too, would be good to hear recommendations as to which practice is more experienced and reliable, not only for doing AI but also their storage solutions.
(I have a male I plan to collect sperm from and keep for potential use in the future).
I have semen stored with fit and fertile from my now long deceased Ch boy ... The vet at willows in Warrington works hand in hand with Keith re inseminations and a friend recently had a good litter from old semen but AI is rather hit n miss. I have failed three times but not used the vet at Warrington.
Have used fit and fertile for semen collection and export to Australia - excellent to deal with despite lots of regulations for austrailia. First dose semen used and was excellent quality and produced 15 pups. Would definitely use them again for collection / export