ThingWorx studio can be purchased (licensed) as an on-premises, in which you could install it into your own cloud instance of preference. Linux is preferred and supported.
Most would benefit from utilizing it from a PTC cloud hosted instance as the product is evolving very rapidly and users can capitalize on new features immediately, where the on-prem approach would limit updates to when you or your IT department could update your server. We do understand that some companies require an on-prem solution which is why it exists.
