I worked in Switzerland and a reason to use on premise here is Security Many detail banks, asset management company or high security company refuse to use any

I worked in Switzerland and a reason to use on premise here is Security Many detail banks, asset management company or high security company refuse to use any public Cloud. They want to have a strict and traceable list of people who have physical access to their hardware. This in order to control any risk of dataleak [1]. In practice they use generally on-premise installation. They ren space in a computer center and own there a private cage monitored with multiple cameras. Meaning they know exactly anyone touching their hardware and enforce security clearance for them. [1]: https://en.m.wikipedia.org/wiki/Swiss_Leaks https://en.m.wikipedia.org/wiki/Swiss_Leaks