Hey. The Swiss are pretty secretive about their weightlifting clubs, and those that exist don't seem to have a big online presence.
To get you started, the national governing body is the Schweizerischer Amateur-Gewichtheber-Verband /Fédération Suisse Haltérophile Amateur. At least some weightlifting clubs seem to be affiliated with wrestling, and the contact for the SAGV is
Daniel Tschan, Les Ecureuils 12, 2722 Les Reussilles
032 487 52 21
www.ringen.ch / daniel.tschan(at)adecco.ch
The website listed is that of the Swiss Wrestling Federation - you might see if any of the clubs there have platforms or affiliated weightlifting clubs, or write Mr. Tschan directly.
There are a few clubs I was able to dig up by quick googling:
There is also apparently a Ring- und Stemmclub Solothurn, but you'll probably have better luck finding the bat-cave.