BoxCryptor - Boxcryptor encrypts your sensitive files before uploading them to cloud storage services like Dropbox, Google Drive, Microsoft OneDrive, Box, and many others.
VerHost - VerHost is a file sharing platform which has no sign up. Unlimited Uploads and Unlimited Downloads.
Mega - Secure File Storage and collaboration
Files App - Files is a beautiful single-file PHP file browser and manager that can be dropped into any dir on your server, instantly creating a gallery of files and folders.
Google Drive - Access and sync your files anywhere
Blomp - Are you looking for ubuntu cloud storage? If yes then visit us at Blomp Beta.