セガサミーホールディングス
Sega Sammy Holdings announced in April 2017 that it would relocate its head office functions and domestic subsidiaries located in the Tokyo metropolitan area to Shinagawa-ku by January 2018. This was to consolidate scattered head office functions including Sega Sammy Holdings, Sammy Corporation, Sega Holdings, Sega Games, Atlus, Sammy Network, and Dartslive. Sega's previous headquarters in Ōta was sold in 2019 and will likely be torn down.