Veeam Backup - Backup and restore VMware and Hyper-V virtual machines with Veeam Backup Free Edition. Unlimited hosts and VMs. Free forever.
N2WS Cloud Protection Manager - N2WS is the leading Enterprise-class disaster recovery, and backup solution specifically made for Amazon EC2 servers.
Zerto - Virtual replication & recovery solution
CloudEndure - CloudEndure provides cloud migration and cloud disaster recovery for any application.
SolarWinds Backup - Modern server backup software
Nuabee DRaaS - Nuabee DRaaS is an online file backup software that helps your IT business protect your important files and documents across all data centers.