This wiki is not meant as another mechanical keyboard ressource, look in the /r/MK Swiss Shopping Guide instead.
In case you're on Telegram, there is the swissmechmarket Telegram group for buying or selling occasion keyboards from community member to community member.
You can also search in the MechMarket subreddit or in the "Marketplace » Classifieds" forum on Keebtalk for the
[EU-CH] [H] tag combination.
We are currently aware of these manufactures:
More also at in the /r/MK Swiss Shopping Guide.