Online Vault Backup - Online Vault Backup is a cloud storage service that allows you backup your data while having unlimited storage.
Truck - A faster alternative to FTP
Rebel Backup - Rebel Backup lets you make encrypted backups of your important files to Dropbox or Google Drive.
Synchromat - Synchromat is file and folder synchronization software for Windows.
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
arRsync - arRsync is a tool that is designed for macOS that is used for transferring and synchronizing files between a computer and a storage drive.