Twin Engine Inc. (Japanese: 株式会社ツインエンジン, Hepburn: Kabushiki-gaisha Tsuin Enjin) is a Japanese anime production company established in October 2014 by former Fuji TV's Noitamina Executive Editor Kōji Yamamoto.

Since its establishment, Twin Engine worked in anime mainly with Fuji TV in the Noitamina programming block due to Yamamoto's previous relationship with the company, but since 2018, Twin Engine productions have not been exclusive to the block and have begun to be part of other TV stations.

In 2020, it established EOTA (Engine of the Animation) an internal organization and division within the company created to strength all of the group.

It has members of all Twin Engine companies and the main company itself doing things such as building a system that allows multiple studios within the group to work together to produce animation, supplementing resources that are insufficient for a single studio (photography, art, etc.

[6] In 2022, Twin Engine, Amutus Corporation, BookLive and Tencent announced a capital tie up with each company helping each other and partnering for future projects to expand in their own respective areas.