Anime studios are the companies responsible for the production of anime. They pay staff,who actually create the anime which is then viewed by the audience and fans of the animation. Anime studios are majorly founded by staff or workers of other animation studios.
Studios in anime and there production
Bones: Bones studio was a studio founded in October of 1998, they are responsible for numerous works like Bungou Stray Dogs,My hero Academia,and a few Fullmetal Alchemist movies.
Studio Pierrot: is a studio founded in may 1979 by Yuji Nunokawa whom had held the position of animator and director at Tatsunoko production, Pierrot with it headquarters in Mitaka Tokyo, it is well known for the production of some popular anime such as Naruto, Bleach, Tokyo Ghoul, Yu Yu Hakusho and so many others.
Kyoto Animation: is not only an animation studio but a light novel producer founded in Uni, Kyoto prefecture in 1985 by a husband and wife duo Hideaki and Yoko Hatta. They are well known for anime such as Violet Evergarden, A Silent Voice, Free, Tamako Love story etc
Mappa: is a Japanese animation studio founded in 2011 by a producer and co-founder of madhouse, Masao Maruyama, it's was founded in June 14 2011 headquarters suited in suginami, Tokyo. Mappa has worked on so many popular anime like; Jujustu Kaisen, chainsaw man Vinland saga season 2, Attack on Titans season 4 etc, they are well-known in recent years for there amazing animations.
Those are one of the best studios in animation for fans to be aware of.