SpiderOak - SpiderOak makes it possible for you to privately store, sync, share & access your data from everywhere.
Vaultastic - Vaultastic’s on-demand SaaS platform provides Protection, Visibility & Control for your Critical Business Data with Agile Cloud Archival.
CrashPlan - CrashPlan for Small Business backup software offers the best way to back up and store business & enterprise data securely - offsite, onsite & online in the Cloud.
MailArchiva - MailArchiva is an email archiving, email compliance, and e-Discovery enterprise server.
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
MailVault - MailVault is a cloud-based IT software that archives and self-prunes based on user settings.