[aveao]

Perhaps you mean that the copyrighted content can only be originally created by a natural person, but companies do very much have Urheberrecht for content they get copyright transferred for (often through employment contracts and implicitly through work relationships). Otherwise you're right though.

[FinnKuhn]

No, in Germany you can not transfer the copyright itself, only a license. That license can however transfer exclusive usage rights, so in practice it ends up mostly similar, with some niche differences only. For example the creator has a right to attribution.