A business name is the name or style under which any business is carried out whether in partnership or otherwise.
This is different from a company because whereas a company is a separate legal entity with its own identity in law,
a business name is only a  name that you are allowed to use to indemnify yourself or your service in trade.

Registering a business name helps the proprietor to carry on business under the registered name thereby distinguishing
the owner’s business from that of others.

  1. How to Register a Business Name
  2. How to Convert a Business Name into a Company