You can prevent users from creating organizations on your GitHub Enterprise appliance.

  1. Sign in to your GitHub Enterprise instance at http(s)://[hostname]/login.

  2. In the upper-right corner of any page, click . Rocketship icon for accessing site admin settings

  3. In the left sidebar, click Admin center. Admin Center tab

  4. In the Users Can Create Organizations drop-down menu, select Enabled or Disabled. Users can Create Organizations drop-down

Users (everyone except site administrators) will no longer be able to create organizations:

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