Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
Google Drive - Access and sync your files anywhere
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
Dropbox - Online Sync and File Sharing
FileVault - FileVault is a method of using encryption with volumes on Mac computers.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.