HyperDex is a relatively new distributed key-value store designed from the ground up to provide a convenient user interface without sacrificing reliability or robustness. The result is a NoSQL storage system that provides a unique set of features not found together in other NoSQL or RDBMS systems.
GT.M is a database engine with scalability proven in the largest real-time core processing systems in production at financial institutions worldwide, as well as in large, well known healthcare institutions, but with a small footprint that scales down to use in small clinics, virtual machines and software appliances.