Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
Knox - Knox offers easy disk image encryption and comes with a built-in backup service.
Keybase Chat - End-to-end encrypted chat built into Keybase
Exocet - Exocet creates a Folder on your System.
Crypho - End-to-end-encrypted messaging and file sharing
R-Crypto - R-Crypto is smart data security and disk encryption software that allows you to secure your sensitive information via strong encryption.