MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Camunda - The Universal Process Orchestrator
Brilliant Database - Create a personal or business desktop database fast and easily using this simple all-in-one database software. Free 30 day trial.
jBPM - jBPM is a flexible Business Process Management (BPM) Suite.
CouchBase - Document-Oriented NoSQL Database
ProcessMaker - ProcessMaker is an easy to use BPM and workflow software solution. It is used to design, automate, and deploy business processes of any kind.