After having searched a number of threads for an English speaking instructor for an A1 ground course and not having had a firm result (in Basel at least), I searched outside the EF and found this fella.
I only did the A1 125cc 8 hour course, but he offers up to full bike license and other exotic courses.
https://www.facebook.com/derfahrlehrer.ch?pnref=lhc www.derfahrlehrer.ch
Really decent bloke, good sense of humour as well (which is helpful on an 8 hour course I can tell you) and I'd highly recommend, whatever level you're at.
cheers