Members: Lia, Maiko Iuchi, Shiho (3), Kotoko, Tomoyuki Nakazawa, Kazuya Takase, C.G Mix, Mell (2), Takeshi Ozaki, Eiko Shimamiya, Kaori Utatsuki, Mami Kawada, Aki (32), Atsuhiko Nakatsubo, Iku (5), Larval Stage Planning, Mako (30), Rina (6), 桐島愛里, 舞崎なみ, Marriage Blue, 北村みのり, 柚子乃, 朝見凛

I've Sound or simply I've is a Japanese techno/trance music production group based in Sapporo, Hokkaido, Japan. Led by Kazuya Takase, it features the talents of seasoned sound creators and many different female vocalists, known as utahime (歌姫, songstress or diva) to their fans.

The group's sound is typically pop with a trance/techno flair. Earlier works had a stronger dance roots as the collective used to produce trance/psy-trance/eurodance compilations before becoming the group it is today.