iNiS (An acronym of "Infinite Noise of the Inner Soul") is a video game company based in Meguro, Tokyo. Founded on February 3, 1997, they specialize in making rhythm games. Their current CEO is Masako Harada and their vice president and game director is Keiichi Yano.
June 21, 2001: Gitaroo Man
2002: Gundam Pilot Academy GPA
2004: Japanese localization of Sudeki
July 28, 2005: Osu! Tatakae! Ouendan
June 8, 2006: Gitaroo Man Lives!
July 6, 2006: RAIN WONDER TRIP
November 6, 2006: Elite Beat Agents
May 17, 2007: Moero! Nekketsu Rhythm Damashii Osu! Tatakae! Ouendan 2
July 5, 2007: Anata mo DS de Classic Kiite Mimasenka?
August 11, 2008: Lips
October 20, 2009: Lips: Number One Hits
March 2, 2010: Lips: Party Classics
http://www.inis.jp/ Their official page. Move your mouse over the "Change Language" tab in the lower right corner of the screen to change languages.