If you trust a provider from Switzerland, be mindful that you also trust the Swiss state: Since 2002 all communication providers are forced to keep a log of all communication flowing over their pipes and hand that out to the authorities on request. Reading the law, I think this isn't just metadata (which would be bad enough) but actual data too. Also, data needs to be kept for up to 30 years.

Now granted, our authorities are way less heavy handed in their approach than the various US agencies, but still, if you don't trust the Swiss government (btw: lately not willing to stand up to US demands), you should not, by any means trust any Swiss company to handle data for you.

If you read german, here's the law: http://www.ejpd.admin.ch/content/dam/data/sicherheit/gesetzg...