I said Henschel because that's who designed the tank. I wasn't thinking right, I already knew you list vehicles by the manufacturer and not designer.

Steyr was called Steyr-Daimler-Puch from 1934 onward, so unless you're going to change all of the other Steyr vehicles then I guess putting the Jagdtiger under Steyr is fine. The Kürassier was made by Saurer anyway, not Steyr.