Can we use your continuous integration service on our own servers?

Technically, yes. Certainly, if we manage your server for you

Do we? Sometimes. If you want us to do that, we might have to write custom scripts, especially for RedHat-based customers, which we would charge for doing. If you use Debian or something Debian based like Ubuntu as your server operating system, it will probably be easier and consequently less expensive.

But call us, we never say never.