MyChat - Secure instant messenger for any network
Encrypto - Encrypto lets you encrypt files before sending them to friends or coworkers.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
Tresorit - Encrypted cloud storage for your confidential files. Using Tresorit, files are encrypted before being uploaded to the cloud. Start encrypting files for free.
Ubiq Security - Enable developers to build encryption into apps in minutes
Crypho - End-to-end-encrypted messaging and file sharing