Veeam Backup - Backup and restore VMware and Hyper-V virtual machines with Veeam Backup Free Edition. Unlimited hosts and VMs. Free forever.
ShareFile - Secure file sharing and sync
Zerto - Virtual replication & recovery solution
Google Drive - Access and sync your files anywhere
Acronis Backup and Recovery - Acronis Backup is a data recovery solution that offers more ways of storing and recovering drives, folders and files as compared to other similar solutions.
Dropbox - Online Sync and File Sharing