Rainbow S.r.l. (formerly known as Rainbow S.p.A) is an Italian animation studio that is best known for producing the animated Winx Club series. They also have produced other animated series such as Tommy and Oscar, Monster Allergy and PopPixie and co-produced Huntik and Mia and Me. The CEO of Rainbow S.r.l. is Iginio Straffi, who is also the creator of Winx Club, as well as the creator and director of Huntik. In February 2011, Viacom purchased a 30% stake in Rainbow.