Both in Bristol
www.yogawest.co.ukwww.bristolcityyoga.co.ukYou won't find as many *fad* yogas in the UK - most methods stick to a specific methodology. I say *fad* yogas as many of the trendy yogas taught in the USA are versions of Hatha, Iyengar, Ashtanga, etc. Which incidentally are actually all Hatha - but anyway.....
You won't normally find a qualified yoga teacher here that mixes with pilates - they are conflicting disiplines.
In Bath you might find some *trendy* yogas - but the teachers may or may not be qualified to actually teach.
Richard Agar Ward and his wife Kirstin are Iyengar yoga teachers in Bath and definitely worth contacting. Just do a google on their names or under any Iyengar Yoga directory.
Gerry and Lynda at Yoga West in Bristol are both senior teachers and very good. Gerry's class kicks ars*!
Bristol City Yoga teaches different methods of yoga - Iyengar, Buddhist methods, Satyananda Yoga. Lizzie's classes are good, she's a Beginner's (Iyengar) teacher - she and I are in the same Intermediate class.