I have been practicing Yoga in Geneva with Alex, a great teacher, for many years. He is experienced, taking care of every student and he always has time before and after session to discuss in more details whatever question we have. The place where he gives classes is in Saint Jean area close to Charmilles. Moreover, he is available for private practice too - if you prefer it. You can contact him from here: http://www.yoga-from-a-to-z.com/yoga-in-geneva.html
Cheers,
Laurence