Type-Moon is a prominent Japanese game company (originally a doujin circle active from 2000 to 2003), best known for their visual novels. It is owned by Notes Co., Ltd.. After creating the popular visual novel Tsukihime as a doujin soft organization, Type-Moon has since incorporated and produced the immensely popular visual novel Fate/stay night. Both of these works have been adapted into anime and manga series that have amassed a global fanbase.

[Edited From Wikipedia]