Another addition to the list would be thatDot Streaming Graph, the commercial version. Quine is the OSS version. It would fit best under Stateful Streaming since it's an event stream processor, but might also make sense under Graph since it uses a property graph data model. Commercial website: https://www.thatdot.com/ Open source: https://quine.io/ It was started by the inventor of the technology in 2022 after Quine came out of a DARPA project.
