Dropbox - Online Sync and File Sharing
GMX File Storage - The GMX File Storage Manager allows your PC and your GMX File Storage to exchange data via the...
Google Drive - Access and sync your files anywhere
CloudBerry Box - CloudBerry Box provides bi-directional synchronization of data across remote computers.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
Zoho WorkDrive - File storage & content collaboration tool for modern teams