At some point there was also a car company that only sold a single electrical car model, it was pretty expensive and they didn't make that many cars per year, which is not what you would normally call "scalable."

Back to the original goalposts, as far as I know, Waymo is the only company that at this point, does offer a commercial service that's fully driverless. As you point out, they don't cover all of Earth, but neither do any of their competitors. Even Uber and Lyft, with human drivers, don't support all pick up and drop off locations, they only work in certain service areas.