Mate, Zurich airport transfers are no different from transfers in any other European or American city. You don't have to use local companies, but you can hire a chauffeur in a Mercedes S-class through international transfer services from popular European airports (e.g. "Sixt"). If you need a local chauffeur service, contact "Zurich Airport Limousine", the company I work for often uses their services. We have one of our offices in Bern.