From the Wikipedia article about the show >The series was produced by Marvel Productions and Sunbow Productions in association with Japanese studio Toei Animat

From the Wikipedia article about the show >The series was produced by Marvel Productions and Sunbow Productions in association with Japanese studio Toei Animation Toei Animation, the studio that made Dragon Ball and Sailor Moon, seemed responsible for the animation in the first two seasons. https://en.wikipedia.org/wiki/The_Transformers_(TV_series) https://en.wikipedia.org/wiki/The_Transformers_(TV_series)