Dragonchain is a hybrid blockchain platform. It was originally developed in Seattle, by a group belonging to the Disney company, under the name of Disney Private Blockchain Platform. The goal of the project was to make it easier for companies to access the blockchain.
Enigma is a protocol that encrypts data and that works through a blockchain. Enigma stores confidential data online and secures it in a decentralized manner. The system was launched by graduates of MIT Media Lab, a research laboratory at the Massachusetts Institute of Technology.