If an organization should no longer be a part of your enterprise, you can remove the organization.
Enterprise owners can remove any organization from their enterprise.
You can remove an organization that is owned by your enterprise account, so the organization stands alone.
Warning : When you remove an organization from your enterprise:
In the top-right corner of GitHub, click your profile photo, then click Your enterprises .
In the list of enterprises, click the enterprise you want to view.
Under "Organizations", in the search bar, begin typing the organization's name until the organization appears in the search results.
To the right of the organization's name, select the dropdown menu and click Remove organization .
Review the warnings, then click Remove organization .