Grouper Productions was a Japanese animation studio founded in 1986 by Tsunemasa Hatano and Masami Hata, after leaving Sanrio's animation studio as it closed doors. The company disbanded around 1996.
Major productions:
With SanrioOther
- Fox Wood Tales
- Izumo (with Cope and Studio Hibari)
- The Ping-Pong Club
- Super Mario Bros.: The Great Mission to Rescue Princess Peach! (with Circus Production)
- Yosei Dikku