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For one activity I had to find all Site Collection Administrators for each and every web application. since I had only few web applications. I managed get it done with the help of bellow link.   https://sharepoint. stackexchange.com/questions/ 209841/get-site-collection- administrators-using- powershell after few modifications, now this script will generate a .csv file with site name and all site collection administrators for each site collection. Add-PSSnapin Microsoft.SharePoint.PowerShell [System.Reflection.Assembly] ::LoadWithPartialName ( "Microsoft.SharePoint" ) > $null $ webApp = Get-SPWebApplication -Identity "http://webappURL" $ logFilePath = "FilePath\ $($ webApp .Name ) -Log.log" ; Add-Content -Path $ logFilePath -value "SiteName | Admin Name" ; $ siteCollections = $ webApp .Sites ; foreach ($ spSite in $ siteCollections ) {   $ siteURL =  $ spSite .Url ;   $ siteCollectionAdmi