Veeam Backup - Backup and restore VMware and Hyper-V virtual machines with Veeam Backup Free Edition. Unlimited hosts and VMs. Free forever.
Acronis Backup and Recovery - Acronis Backup is a data recovery solution that offers more ways of storing and recovering drives, folders and files as compared to other similar solutions.
Zerto - Virtual replication & recovery solution
SolarWinds Backup - Modern server backup software
NAKIVO Backup & Replication - NAKIVO Backup & Replication offers a complete data protection feature set, including local and offsite VM backup and replication, support for live applications & databases.
Backup Exec - Backup Exec provides simple, complete backup and recovery protection for your business, to cover all data wherever it resides. Try free for 60 days.