This is a request that was made by someone a few months ago. It’s been a while so I apologize for not remembering who requested it. We’re using the Win32_GroupUser class to get the local administrators of a computer or many computers remotely. The function is modular enough to give you the ability to view the results in the console, export to a CSV, or a text file if you really wanted to I guess.
If you know of an easier method of doing this please let me know.
Code Download: https://github.com/signalwarrant/Powershell/blob/master/Get-LocalAdmins.ps1