| Japanese Sega companies, studios and subsidiaries
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18
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| Service Games
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Sega Enterprises, Ltd.
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Gulf+Western
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CSK
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Sega-Sammy Holdings
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| Service Games, Japan
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Nihon Goraku Bussan
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Sega Enterprises, Ltd.
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Sega Corporation
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Sega Holdings
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Nihon Kikai Seizou
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R&D1
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AM1
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Sega Software R&D Dept. 1
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WOW Entertainment
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Sega WOW
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AM1
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R&D1
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Sega Interactive R&D1
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AM2
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Sega Software R&D Dept. 2
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Sega AM2
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R&D2
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Sega Interactive R&D2
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AM3
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Sega Software R&D Dept. 3
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Hitmaker
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AM3
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AM4
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AM4
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Mechatronics
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R&D4, Product
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Sega Interactive Product R&D
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AM5
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Mirai R&D
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Family Entertainment
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N. Pro. R&D
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AM6
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| DigitalRex
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AM Plus
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AM Annex
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R&D Dept. #5
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Sega Rosso
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AM 11
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R&D Dept. #4
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Amusement Vision
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New Entertainment R&D
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CS1
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R&D3, Div. 1 | Ryu Ga Gotoku Studio
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Sega Games R&D1 | Ryu Ga Gotoku Studio
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Sega R&D2
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Sega CS | Team Andromeda
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CS1 | Team Andromeda
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R&D Dept. #6
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Smilebit
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Sega Sports Design R&D Dept.
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PC Software R&D
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Sega R&D2
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Sega CS
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CS2
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R&D Dept. #7
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Overworks
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Sega WOW
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Sega R&D2
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Sega CS
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Global Entertainment R&D Dept. 2
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Sega CS3
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R&D3, Div. 3
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Sega Games R&D3
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Sega R&D2
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Sega CS | Sonic Team
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CS3 | Sonic Team
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R&D Dept. #8 | Sonic Team
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Sonic Team
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Global Entertainment R&D #1 | Sonic Team
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Sega CS2 | Sonic Team
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R&D3, Div. 2 | Sonic Team
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Sega Games R&D2 | Sonic Team
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R&D Dept. #9
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United Game Artists
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Sega Digital Studio
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Wave Master
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Mobile Content R&D
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Sega Networks
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