QB Issue Resolution:

use menu file>new company and set up the new company file

with QB desktop you can have as many companies as your hard drive will hold – no additional costs

Resolution for Issue 'Can you add another company to quickbooks as two different accounts?' available: Yes (Solved).
Source: Intuit Community forum.

Can you add another company to quickbooks as two different accounts?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for Company
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Error Recovery for Company [Canada]
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