To transfer a Unity Project from one organization to another, you must be an owner or manager of both organizations. You perform this operation through the Unity Developer Dashboard.
Note: Disabling Unity Services is no longer required for this process.
From the Developer Dashboard Projects list, locate the Project you wish to transfer and select View.
Select Settings on the left navbar, then select General from the drop-down options.
Select the Transfer this project to another organization drop-down and select the destination organization from the list, then select Transfer.
A message appears indicating whether the transfer was successful. If you receive an error message, contact Support.