Vanpool have shut down. Thanks to @markderoos for providing the link.
Unlike Alphadream, this one is quite surprising, as they helped HAL with Kirby and the Forgotten Land, as well as Returns to Dream Land Deluxe. They also worked on Paper Mario: Origami King.
Those games didn't exactly flop, so I'm baffled as to what happened.
It really bums me out in particular though, because they made Dillon's Rolling Western, which means they single handedly gave us the best Nintendo character designs in the past decade. (Don't argue, it's true, I defy anyone to prove me wrong)
I hope HAL or Nintendo absorb some of the staff, it'd be a shame to let them go to waste. And Dillon needs a Switch game still. Dead Heat Breakers was getting the series to hit it's stride. It can't end there.