VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
Knox - Knox offers easy disk image encryption and comes with a built-in backup service.
CryptoForge - CryptoForge is handy-to-use file encryption program for individual and organization to get a reliable safety.
Exocet - Exocet creates a Folder on your System.
Advanced Encryption Package - For the first time there is an encryption system named Advanced Encryption Package that uses 20 tested and strong encryption algorithms together with AES, Blowfish, Twofish, GOST, Serpent and others.
R-Crypto - R-Crypto is smart data security and disk encryption software that allows you to secure your sensitive information via strong encryption.