Change branding text (text in top left corner) to logo SharePoint 2013

Change the word 'SharePoint' in the upper-left corner of the screen to better reflect individual branding with PowerShell

Run PowerShell command as Administrator.

$webApp = Get-SPWebApplication https://portal

$webApp.SuiteBarBrandingElementHtml = '<div class="ms-core-brandingText"><a href="https://portal"><img src="https://portal/PublishingImages/logo.jpg"/></a></div>'

$webApp.Update()

If you want to return it on default settings, here is what you need to do:

$webApp = Get-SPWebApplication https://portal

$webApp.SuiteBarBrandingElementHtml = '<div class="ms-core-brandingText">SharePoint</div>'

$webApp.Update()