I recently applied for a job at a company that makes civilian drones (rescue, police). They required knowledge of the Oberon language, I'm pretty sure they use HelyOS [1] for real-time control of their coaxial helicopters.
It's quite interesting how these Pascal derivatives seem to find their niche in high-reliability or real-time applications, although I don't quite understand why. That may have been part of the reason why I didn't get the job.