I'm doing some research for an upcoming project that will require some unique and thorough testing. The project is to migrate an acquired company and about 2,500 employees including groups, GPs and other settings. While the normal routine would be to establish an AD trust, it's not possible in this project as the company acquisition is not a 100% acquisition so the other company IT does not want to allow the normal trust to be established.
Does anyone know of any 3rd party companies that have built any tools that could help toward this project? I'm certain that PowerShell will be used heavily but I was hoping that someone has performed a similar project and can share some thoughts.
Thanks.