SolarWinds Backup - Modern server backup software
Spanning Backup for Office 365 - Spanning Backup for Office 365 allows your organization to protect its critical Office 365 Mail, Calendar, OneDrive and SharePoint data. Specifically designed for Microsoft Office 365, Spanning makes backup effortless and recovery click-simple.
SysTools Google Apps Backup - Quickly backup all Google Apps emails to PST, EML, MBOX & EML with G Suite Backup software.
Datto Backupify - Protect your business with backup.
OwnBackup - OwnBackup provides automated backups of SaaS and PaaS data and restore tools for disaster recovery.
ManageEngine RecoveryManager Plus - RecoveryManager Plus is one such enterprise backup solution which has the ability to easily backup and restores both the domain controllers and virtual machines.