I've used BackupVault for 2 businesses now, one in the education section, and one in the industrial consultancy sector. Both businesses have strict requirements around remaining GDPR compliant and ensuring the security of our data.

The service and support provided by the folks at BackupVault are superb, especially as they don't push you into a "one-size-fits-all" box, and have multiple solutions and pricings to offer that suit a range of business types and sizes.