That is a Capstar rig, at least Capstar seems to have a monopoly on them. They have a pick-up arm for the drill pipe and a top drive, I have gone to 6000' with one.
Back in "the old days" I recall "Varco" as pioneering top drives. Truth be told, most of my experience is in offshore drilling, so I'm not familar with Capstar and the smaller rigs.