[makeitdouble]

I don't know for MongoDB and Vagrant, but Docker and Elastic Search seem to me to be painted into a corner because of the non proprietary part of their business.

Seeing them succeed up to that point is already an incredible feat, and perhaps they will find a way to turn around with a bright future ahead, but at this point I wouldn't give them as clear examples of success of the business model.

Red Hat is IBM, so I'm not sure it fits in the list.