Is there any way to see and manage all my corporate ADOBE-ID´s?
Does that help...
"With the Account Administration tool, an administrator in your company can create and provision accounts. You can create assign three types of roles to accounts, all of which are based on Adobe IDs"
Is it also possible to get an overview over all my projects.
if your projects are all under the same Adobe ID, then yes.
Otherwise you need to log in with the ID associated with a particular project in the DPS dashboard