Microsoft OneDrive - Secure access, sharing & file storage
Dropbox - Online Sync and File Sharing
WeTransfer - WeTransfer is a free service to send big or small files from A to B.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
Cloudeezy - Cloudeezy is a communication and file sharing platform. Access and synchronize your files, contacts, calendars and communicate and collaborate on your devices. You decide what happens with your data!