|This article is about a/an organization in Kamen Rider 555.|
- "Life is frail. Life is limited. So, why don't you think about true life? Be smart! True life is your start!"
- ―Smart Brain's commercial slogan[src]
Smart Brain, Inc. (スマートブレイン社 Sumāto Burein-sha) was a company that is a front for a group of Orphnoch that sees themselves as the master race and are dedicated to the genocide of the human race and increase of the Orphnoch population. They experiment in making their race even more powerful and developing weapons that only Orphnoch can use. Smart Brain is ironically where the Rider Gears were developed from. This is the largest coordinated group of Orphnoch ever seen, and in the movie Paradise Lost they seem to have formed a de-facto world government after the Orphnoch revolution.
Behind the scenes
- Kamen Rider Gaim director Ryuta Tasaki noted in an interview with Uchusen magazine that the Yggdrasill Corporation is a homage to Smart Brain, one of several references to past Heisei Rider series in the show.