The Backblaze for Business product gives you the option of creating a Business Group. This is good if you have multiple users with separate accounts that you would like to centrally manage billing and backups for.
However, the software and functionality are otherwise the same between the two products. If you have multiple users and you'd like them to be able to log in to restore their own files, you can use our Business Groups feature to manage that. If you want all backups under a single account, you can use our Personal service.
For clarification on how the B2 product differs from personal Backup, please view the following guide: