Carbonite - Unlimited online backup for one flat fee. Free trial, no credit card required.
BoxCryptor - Boxcryptor encrypts your sensitive files before uploading them to cloud storage services like Dropbox, Google Drive, Microsoft OneDrive, Box, and many others.
Backblaze - Backblaze's remote backup automatically backs up your data to our secure datacenter.
Mega - Secure File Storage and collaboration
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.
Google Drive - Access and sync your files anywhere