GoodSync - GoodSync provides highly reliable file backup and synchronization for both individuals and businesses.
Carbonite - Unlimited online backup for one flat fee. Free trial, no credit card required.
rsync - rsync is a file transfer program for Unix systems. rsync uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync.
Backblaze - Backblaze's remote backup automatically backs up your data to our secure datacenter.
Syncthing - Syncthing replaces proprietary sync and cloud services with something open, trustworthy and...
Code42 - Code42 is a SaaS solution for enterprises that secures all user data on one secure platform, leaving you and your business secure in the knowledge that both your employee's and customer's data is protected. Read more about Code42.