Sigma Seven Co., Ltd. (株式会社シグマ・セブン, Kabushiki-gaisha Shiguma Sebun) is a Japanese talent management firm representing a fair number of voice actors and entertainers. Founded on March 3, 1988, Sigma Seven is headquartered on the third floor of the Haga Building in Minato, Tokyo, Japan. More information...
According to PR-model, sigma7.co.jp is ranked 27,869th in multilingual Wikipedia, in particular this website is ranked 1,965th in Japanese Wikipedia.
The website is placed before cityfile.com and after brisbaneroar.com.au in the BestRef global ranking of the most important sources of Wikipedia.