Veeam Backup - Backup and restore VMware and Hyper-V virtual machines with Veeam Backup Free Edition. Unlimited hosts and VMs. Free forever.
UrBackup - UrBackup is a open source client/server backup system, that through a combination of image and file...
XSIBackup - Backup VMWare ESXi vSphere virtual machines to datastore or differential over TCP/IP.
Carbonite - Unlimited online backup for one flat fee. Free trial, no credit card required.
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
Retroly - A fun simple tool for agile retrospectives