Ochsner Pro Shop are the best in the German part of CH, no comparison. They will sharpen while you wait and it is much better and cheaper than anywhere else!!! DO NOT use Athleticum, they ruined my pair (luckily due to be changed anyway).

In the French part, Chip Sport is the best shop for sharpening.

Both of these chains operate with partnerships of the official amateur leages in Switzerland.

Source: playing icehockey in CH for 4 years now (Lausanne/Basel).