About the Supplied Composer Accounts
Two unique Composer accounts are created during the Composer installation process - a superaccount and a company account.
The superaccount is a dedicated and permanent account that cannot be deleted. Its sole purpose is for the maintenance of other Composer accounts and other supervisory Composer functions.
The supplied supervisor user can only be assigned to the superaccount. Other users can be assigned to the superaccount. Users assigned to the superaccount have full access to the Composer supervisor UI and its supervisory functions. See Add and Remove Supervisors.
The company account is the default account where the supplied admin user can perform administrator-level functions for Composer.
Other users can be assigned as administrators of the company account. Simply add them to the Administrators group for the account.