ARZEST Corporation (http://www.arzest.jp/en/origin.html)
CHUNSOFT Co., Ltd. (999: Nine Hours, Nine Persons, Nine Doors, Shiren the Wanderer series, Pokemon: Mystery Dungeon games, Dragon Quest I – V)
Good-Feel Co.,Ltd (Kirby’s Epic Yarn, Warioland: Shake It!, Looksley’s Line Up)
MITCHELL CORPORATION (Polarium series, Magnetica series, Suujin Taisen: Number Battles)
PROPE, Ltd. — Yuji Naka’s studio (Let’s Tap, Let’s Catch, Ivy the Kiwi? titles, Rodea the Sky Knight)
SKIP Ltd. (Chibi-Robo series, -art style- series, Giftpia, LOL, Snowpack Park, bit generations series)
NdCUBE Co.,Ltd. (F-Zero: Maximum Velocity, Wii Party, Mario Party 9)
VANPOOL,INC. (Tingle series of DS games, see other titles here: http://www.vanpool.co.jp/work.html)