They're an energy company that has failed to produce any yet because of how they chose to generate that energy. Unfortunately, like everyone else who tried this so far, they can make tiny bang go flash, and that's unfortunately still just about it.

So, indeed, so far they failed at energy, and they've only succeeded at fusion in the same way and at the same scale that university labs have.

So I guess you're right: they're not even any kind of company at the moment. They don't sell anything. They're an R&D lab.