How do I add an additional company to my current QB online account?

One QBO account is for one company file. You can signup for a new QBO account with the same email address. Otherwise, consider using QB Desktop to manage multi company files with a single license.

I can assist you in adding another company to your QuickBooks Online account, osantoskibusines.

To create another company, you'll need to sign up for a new QuickBooks Online account as each company file requires a separate subscription.

To associate an additional company with your existing email address, log in to your current company account while creating a new account and click on Add another company.

Here's how:

1. Visit the QuickBooks pricing page and select the subscription option you want for this new company.
2. 1. Choose the plan you'd like to have.
   2. On the Sign-in page that appears, enter your email address.
   3. Click the Create a new company button. 
   4. Follow the prompts to finish creating the account. 

Check out this article for more information about managing multiple company files: Create or add another company file to QuickBooks Online. 

Once you've finished creating the account, you can quickly switch between companies. For more information on switching companies, refer to this how do I switch companies article for more information.  

That's it! Please let me know if you have any further questions about adding a new company. I'm always here to assist you in any way I can. Have a great day!