I'd say there are 4 main places in Switzerland: around both ETH (the most prestigious universities) in Zürich and Lausanne, with plenty of spinoffs, in Geneva (

I'd say there are 4 main places in Switzerland: around both ETH (the most prestigious universities) in Zürich and Lausanne, with plenty of spinoffs, in Geneva (mostly finance) and in Zug (lots of crypto). Zürich has all (most?) of the big tech, plus lots of start-ups. Lausanne is mostly just start-ups and small companies.