According to Dengeki Visual Arts magazine, the production studio of Little Busters! anime was announced to be J.C. Staff.
Staff
Executive Producer: Kawase Kohei (“Toaru Majutsu no Index” series, “Shakugan no Shana” series)
Director: Yamakawa Yoshiki
Series Composition: Shimada Michiru (“Shugo Chara!”, “Jewelpet Tinkle”)
Character Design: Iizuka Haruko
Producer Company: Warner Entertainment Japan
Sources: Scan of Dengeki Visual Arts, Scan 2, Scan 3
