@MАDАO, как я понял, изначально она такой и была, но сейчас она уже автономна (либо практически автономна).

Studio MAPPA was founded in 2011 by Masao Maruyama, who left behind the corporate environment that had grown to dominate his former company Madhouse to pursue more creative freedom. But as years passed MAPPA also grew, which means that their list of obligations increased as well. A positive development that hid an ironic twist of fate – come 2016, he found himself in the same situation he created this studio to escape. Time is unforgiving too, so the always brilliant but now more tired Maruyama decided to embark on a more personal adventure with Studio M2. He left MAPPA in the hands of younger people, entrusting producer Manabu Otsuka as president (no small deal, since their sachou/社長 has traditionally been very actively involved). Luckily for them, this all happened it was in the same year when the studio landed two surprise massive hits: Yuri!!! on ICE and In This Corner of the World; even though MAPPA tends to rank very low on production committees and thus don’t massively profit off those, they do make some money back, and at the moment they’re perceived as a successful studio both amongst fans and producers. It was without a doubt one of the factors that accelerated the already rapid growth of the company.

И из той же статьи
They’re planning to open a studio in Sendai in April 2018 and expand their animation crew there. If their big plans comes to fruition, the studio might develop into a healthier and more self-sustainable company.