VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
ObserveIT - ObserveIT insider threat detection & user behavior analytics enables companies to mitigate the risk of insider threats.
Easy File Locker - Easy File Locker is a pretty small file at 224KB and will do exactly what it says.
ThisData - ThisData is a cloud security company that provides audit and continuous monitoring for data stored in the cloud.
Axcrypt - AxCrypt - Password Protect Files With Strong Encryption. AxCrypt is the leading open source file encryption software for Windows.
Seclore - Seclore is enabling organizations to persistently protect and audit their data and files wherever they travel.