Hi @evertjanwagenaa, that’s doable. If you have outside plugins you’d like to install on our managed hosting service, you will need our Business plan, as outside plugins and themes add complexity to our support and maintenance. https://wordpress.com/business
This includes SSL, direct WordPress support, maintenance, security, and many other features that tend to cost extra with other providers. If you’d like to run your own copy of WordPress and use community support or hired contractors as needed, you can do that instead: http://en.support.wordpress.com/com-vs-org/
Or, if you don’t need outside themes and plugins and just want to import your content alone, you can do that, too. You just won’t use All in One Migration plugin.