Hello,
Yes, you can create more than one company in Dynamics 365 Business edition. When creating them they will be 5 different companies.
To create a new company you can go to My Settings under the setup gear icon. This will bring up the “Edit – My Settings” page. Select the AssistEdit on the Company line and you will be shown a list of Allowed Companies. There should be a “Create New Company” action on the ribbon.
Another way to create a new company is to use the Search Icon (piece of paper with a lightbulb) and type in the word 'companies'. This will open up the Companies window and you can click the New icon to create a new company.
Thank you,
Jennifer Reinhardt
Please see our Dynamics 365 Financials Support Team Blog for helpful information:
blogs.msdn.microsoft.com/dyn365finsupport