Studio Pierrot (スタジオぴえろ, Sutajio Piero?) is a Japanese animation (anime) company, founded in 1979 by former employees of Tatsunoko Production. They are considered specialists in the magical girl sub-genre, especially with their magical girl series of shows.

The company has a simple logo of the face of a clown. Pierrot is a Japanese loanword for clown, adopted from the classical character of Pierrot.

YuYu Hakusho and Gensomaden Saiyuki, two of the company's anime, won the Animage Anime Grand Prix Award in 1993 and 2000, respectively.

Source: Wikipedia