Happy to have you here in the Community, @richiegriff2-gma. I’ll help you with adding another company in QuickBooks Online (QBO).
To start a new company, you'll need to create a new QuickBooks Online account. One subscription is equal to one company file.
Log into your current company when creating a new account to put this firm under your existing Intuit ID. When creating a new account, simply click the Add another company button. You'll only be prompted for an Email address and a Password after that (you should be using the same email address).
Check out this page on international versions, then register a new account by selecting your country.
After that, you can easily switch from one company to another. For additional details, see this article on how to switch companies.
That should do it. Please let me know if you require any additional assistance in creating company by posting a comment below. I'm always happy to lend a hand in any manner I can. Have a great day!