CrashPlan - CrashPlan for Small Business backup software offers the best way to back up and store business & enterprise data securely - offsite, onsite & online in the Cloud.
Clonezilla - Clonezilla is a suite of software that's designed to allow you to back-up and image new hard drives with your data.
SpiderOak - SpiderOak makes it possible for you to privately store, sync, share & access your data from everywhere.
Win32 Disk Imager - Create and restore image backups of disk drives.
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
Macrium Reflect - Macrium Software - the creators of Macrium Reflect backup, imaging and cloning software.