They've worked on mainline nintendo games since forever; I've seen stuff suggesting they've made Entire Ass Videogames essentially under contract for major publishers. Around 1000 employees, 40 years in business, insanely talented team, almost completely uncredited or pseudonymous.
I'd never even HEARD of them until I played Scarlet Nexus in 2021, which is one of the only games that actually puts their logo up front. One of the best action games I've ever played and then I'm looking at the credits like "wait, where did this come from? who the fuck even IS this??"