Sam Smith is great - he is based in Gloucestershire but came out to me when I lived in Marlborough. Would really recommend him. PM me if you want his number.
I have had only one session with the practitioner in Marlborough - more than happy to PM her number but may be worth trying the other recommendations first as they come with a longer client history by the sound of it!
He's based near Oxford (I think) but if you can get Neil Saunders to come out to you, he is absolutely fab. My mare is now walking downhill better than she has ever done before, thanks to Neil. I never even realised she had problems, I just wanted him to take a look!
I am in south Wilts so he will likely travel to you if you are further north