MailStore - MailStore Home - A 100% free single-private-user desktop solution
Code42 - Code42 is a SaaS solution for enterprises that secures all user data on one secure platform, leaving you and your business secure in the knowledge that both your employee's and customer's data is protected. Read more about Code42.
Gmvault - Backup the emails in your Gmail account.
SolarWinds Backup - Modern server backup software
SysTools Gmail Backup - Backup Gmail Emails, Contacts, Calendar, and Google Drive Storage File by SysTools Gmail Backup Solution
Druva inSync - Your device may be lost, but your data isn’t with Druva inSync™ Integrated backup, eDiscovery and compliance monitoring.