Can I have several Billhop accounts?

Yes. Billhop users can have both a private account as well as one, or many business accounts. You can easily switch between accounts when you are logged in, to ensure that your private bills are stored on your private account and vice versa for your company's bills.
In addition, multiple users can be linked to one business account. The creator of the account can decide which areas of the account other users can access. This includes everything from registering and paying bills, to only being able to see the bills and downloading accounting documents. This means however, that only one company registration number can be connected with the account.