Workflow Engine .NET!

Imixs-Workflow in a scalable, transactional, robust and simple deployable open source workflow engine for human-Centric BPM. Human-centric business process management supports human skills and activities by a task oriented workflow-engine. Imixs-Workflow is based on the Java Enterprise Edition and support the BPMN 2.0 Standard. Imixs Workflow is free software. You can run it on any platform, and use it for any kind of business application.

The Signavio Process Editor was created in order to be very intuitive and easy to use. Besides professional process modeling, the Signavio Process Editor offers numerous possibilities to include as many process participants as possible in process design. Using QuickModel (spreadsheet like process design), even colleagues without any knowledge of BPMN 2.0 can be included in modeling business processes. This makes Signavio the pioneer in collaborative process design.

Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java.

cDevWorkflow is the next generation BPM-Workflow platform for developers. Completely written using .net and c#, focused on performance and functionality.