I know the folks at Luna, the number is growing and other collaborations.
I quite like their visualisations - its the core of their offerings. The most important thing that made me interested in them is that they build and run their work on GraalVM and have integrated their language with Truffle. In case you are not familiar with these terms have a look at https://github.com/neomatrix369/awesome-graal.
Anyone heard of Luna or using it in Dev or Production?