We have Centos 7, Ubuntu 16 & 18 (Server), Fedora 19 and Windows Server 2016 ready. Anything else you want, please let us know. Some OS and versions might not be available, but most of what runs on x86/x64 can be provided.
Anything that requires a license, you’ll have to provide it, except for Windows which we offer for free (offer limited to Windows Server 2016).