GMX File Storage - The GMX File Storage Manager allows your PC and your GMX File Storage to exchange data via the...
Dropbox - Online Sync and File Sharing
Sync.com - Sync. com offers a backup tool and a file sharing service, rolled into one.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
Cloudu - Secure German online storage and file sync service. Apps for all major platforms.
Mega - Secure File Storage and collaboration