Of course, it is. Even if your website is not reachable from the internet, website migration is still available for you.
For this, create a dump file of your database. Please, note that we can manage only MySQL and MS SQL types of databases.
After that, upload the website database dump file to the cloud storage service. We recommend using one of the following:
And just contact CMS2CMS managers to inform us about your requirements regarding the migration and to share the link to the uploaded dump file.