You can re-brand the Help tab by changing its text to reflect your organization name or help program. This needs to be done from SharePoint PowerShell on the SharePoint server.
Brand your Help tab
From the prompt, type Set-VisualSPHelpTabLabel and respond to the prompts that follow. If you leave any responses blank, your change will not take effect.
- Label: This is what the name of the Help tab will become
- Description: This will pop up over the tab when a user hovers over it.
- LCID: This is the Locale ID (e.g. 1033 for English-United States)