Sega Sammy Holdings
A Japanese entertainment conglomerate created through the 2004 combination of Sega and Sammy, spanning video games, animation, toys, amusement, pachinko, pachislot, resorts and online gaming.
Last updated November 4, 2026
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Overview
Sega Sammy Holdings Inc. is a Japanese global holding company and entertainment conglomerate formed in 2004 through the combination of Sega Corporation and Sammy Corporation. Its businesses bring together two historically different but complementary parts of Japan’s amusement industry: Sega’s arcade, console, PC, mobile-game, animation and toy activities, and Sammy’s pachinko and pachislot-machine business. The group’s Sega heritage reaches back to the postwar amusement trade. Sega began by supplying entertainment machines, including equipment used at American military bases in Japan, and later became known internationally for arcade machines, home consoles and software. Its landmark products included the electro-mechanical game Periscope, the SG-1000, Mega Drive/Genesis, Saturn and Dreamcast hardware, as well as arcade innovations such as Hang-On, R-360, Virtua Racing and Virtua Fighter. The Sonic the Hedgehog franchise, introduced in 1991, became the company’s most recognizable global property. After discontinuing the Dreamcast in 2001, Sega left the console-hardware business and concentrated on game development, publishing and entertainment content. Sammy was established in 1975 by Hajime Satomi from the manufacturing and marketing operations of Satomi Corporation. It developed a strong position in pachislot machines during the 1980s and expanded into pachinko machines in the 1990s. Those businesses generated substantial cash flow but also exposed Sammy to the cyclical and regulatory characteristics of Japan’s gaming-machine market. Sammy also published video games, including titles developed by outside studios. Sega and Sammy explored a merger in 2003, but the initial plan collapsed. Sammy subsequently acquired a substantial stake in Sega and obtained greater influence over the company. A revised transaction was announced in 2004, producing Sega Sammy Holdings. The structure allowed Sega to retain its name and creative identity while giving Sammy a broader entertainment platform. Hajime Satomi became the central figure in the new group, while Sega executive Hisashi Oguchi served in senior leadership during the integration period. Following formation, Sega Sammy expanded its content portfolio and international footprint. The group acquired or consolidated businesses including The Creative Assembly, Sports Interactive, TMS Entertainment and Sega Toys. It also developed animation, amusement, resort and casino activities. Over time, the group’s business mix shifted. Pachinko and pachislot remained important, but packaged games and arcade operations faced changing consumer habits, while digital games, mobile entertainment, character intellectual property and resort-related businesses became more prominent. A major structural reform announced in 2015 organized the group around Entertainment Contents, Pachinko & Pachislot, and Resort businesses. Entertainment Contents includes Sega’s game studios and publishing operations, Atlus, animation and toy activities, and later Rovio Entertainment. The Pachinko & Pachislot segment includes Sammy and related machine manufacturers and service companies. The Resort segment has included casino, resort, golf and gaming-machine initiatives. The COVID-19 pandemic accelerated changes in the physical amusement business. In 2020, Sega Sammy agreed to sell a controlling interest in Sega Entertainment, the arcade-center operator, to Genda, while retaining Sega’s arcade-machine manufacturing activities. The group also reorganized corporate functions and transferred certain amusement-machine activities within its entertainment businesses. Sega Sammy has continued pursuing global digital entertainment and regulated gaming opportunities. In 2023 it completed the acquisition of Rovio Entertainment, the Finnish mobile-game company known for Angry Birds. Its gaming strategy has also included casino-machine development and online gambling investments. Sega Sammy Creation’s acquisition of GAN Limited…
History
Sega Sammy Holdings emerged from the convergence of two Japanese amusement companies with different operating histories. Sega developed from a machine-distribution business into an international arcade and video-game company. It established regional operations in the United States and Europe, built a reputation for technically ambitious arcade products, and entered the home-console market with systems including the SG-1000, Mega Drive/Genesis, Saturn and Dreamcast. Sega’s software franchises, particularly Sonic the Hedgehog, became more durable than its hardware business. After the Dreamcast was discontinued in 2001, Sega reorganized as a third-party publisher and developer. Sammy began in 1975 as Sammy Industry, founded by Hajime Satomi from the amusement-machine operations of Satomi Corporation. It became a major producer of pachislot machines and later expanded into pachinko. Sammy’s financial strength in these businesses gave it the resources to pursue diversification, while its dependence on the Japanese gaming-machine market created an incentive to enter broader entertainment categories. The companies’ relationship developed through software and business contacts between Sammy and Sega. A proposed merger announced in 2003 did not proceed. Sammy then acquired a significant stake in Sega and became influential in its governance. In 2004, the companies announced a new combination under Sega Sammy Holdings. The group retained Sega and Sammy as operating identities, seeking to combine Sega’s creative and international assets with Sammy’s cash-generating machine business. During its first decade, Sega Sammy expanded through acquisitions and internal organization. It added or consolidated TMS Entertainment, Sega Toys, The Creative Assembly and Sports Interactive, strengthening its position in games, animation and character entertainment. The group also maintained arcade-machine production, amusement centers, resorts and casino-related activities. By 2015 it had reorganized into Entertainment Contents, Pachinko & Pachislot, and Resort segments, signaling a move away from reliance on traditional arcade and packaged-game sales. The group’s later history has been marked by portfolio adjustment. Sega Sammy sold most of Sega Entertainment’s arcade-center business to Genda in 2020, while preserving Sega’s role in arcade-machine manufacturing. It reorganized corporate functions and transferred amusement-machine activities to the renamed Sega Fave organization in 2024. In parallel, it pursued international digital and regulated gaming assets. The 2023 acquisition of Rovio broadened its mobile-game capabilities, while the GAN and Stakelogic transactions extended the group into sports betting and online gambling. By 2025, Sega Sammy therefore operated as a diversified entertainment and gaming holding group rather than simply a combination of a video-game publisher and a pachinko-machine maker.
- 2025
GAN and Stakelogic transactions advance
[1]Sega Sammy completes the GAN acquisition and completes the Stakelogic acquisition following legal and regulatory developments.
- 2023
Rovio acquisition closes
[1]Rovio Entertainment becomes a wholly owned subsidiary, expanding Sega Sammy’s mobile-game presence.
- 2020
Sega Entertainment arcade-center sale
[1]Sega Sammy agrees to sell 85.1% of Sega Entertainment to Genda during the pandemic-era downturn in physical amusement.
- 2015
Three-segment group reform
[1]The group reorganizes around Entertainment Contents, Pachinko & Pachislot, and Resort businesses.
- 2005
International entertainment expansion
[1]Sega acquires The Creative Assembly and Sega Sammy consolidates a controlling interest in TMS Entertainment.
- 2004
Sega Sammy Holdings is formed
[1]Sega and Sammy combine to create the holding company.
- 2001
Sega leaves the console-hardware business
[1]Sega discontinues Dreamcast and shifts to third-party game development and publishing.
- 1991
Sonic the Hedgehog launches
[1]Sega introduces Sonic the Hedgehog, which becomes its leading global game and character franchise.
- 1975
Sammy is founded
[1]Hajime Satomi establishes Sammy Industry, the predecessor of Sammy Corporation, from Satomi Corporation’s amusement-machine operations.
Products and positioning
A diversified Japanese entertainment group combining globally recognized game and character intellectual property with pachinko, pachislot, amusement, animation, toys, resort and regulated gaming businesses.
Video games
Sega video games and franchises
Sega’s entertainment-content portfolio includes Sonic the Hedgehog, Like a Dragon, Total War, Football Manager and other console, PC, mobile and online properties. The group develops and publishes through Sega, its regional subsidiaries and studios such as Sonic Team, Ryu Ga Gotoku Studio, Creative Assembly and Sports Interactive.
Video games
Atlus franchises
Atlus contributes role-playing and strategy properties including Persona and other series. Its development organizations operate within Sega Sammy’s entertainment-content business and give the group a strong position in character-driven Japanese games.
Mobile games · 2023
Rovio mobile games
Rovio adds mobile games and associated intellectual property to Sega Sammy’s portfolio. Its best-known property is Angry Birds, a globally recognized character and game brand that supports mobile publishing and broader licensing opportunities.
Gaming machines
Sammy pachinko and pachislot machines
Sammy and affiliated companies design, manufacture and market pachinko and pachislot machines for the Japanese market. These products have historically been a principal source of group earnings and are often based on licensed entertainment properties.
Arcade and amusement
Sega arcade and amusement machines
Sega’s arcade business covers coin-operated video games, amusement equipment and related services. Although Sega Sammy reduced its direct ownership of arcade-center operations, Sega continues to participate in arcade-machine development and manufacturing.
Animation and toys
Animation, toys and character entertainment
Through TMS Entertainment, Marza Animation Planet, Sega Fave and related companies, the group develops animation, toys, character goods and other extensions of entertainment intellectual property.
Online gaming · 2025
Online gaming and betting businesses
Sega Sammy’s newer gaming portfolio includes casino-machine development and online gaming and betting assets associated with GAN and Stakelogic. These businesses support the group’s diversification into regulated international gaming markets.
Marketing campaigns
- 2021Tokyo Verdy sponsorship
Japan
Sega Sammy became a kit sponsor of J2 League club Tokyo Verdy and its women’s team, Nippon TV Tokyo Verdy Beleza, and supported a Tokyo Classic match.
Outcome. Brand partnership and sports-marketing exposure in Japan.
Brand decisions
2024
Transfer amusement-machine operations to Sega FaveStrategyBackground
Sega Sammy continued simplifying and refocusing its entertainment operations.
Action taken
The amusement-machine business of Sega was transferred to Sega Toys, which was renamed Sega Fave Corporation.
Aftermath
The change consolidated selected amusement and toy activities within a revised operating structure.
2023
Acquire Rovio EntertainmentM&ABackground
Sega Sammy sought to strengthen its global mobile-game capabilities and intellectual-property portfolio.
Action taken
The group completed the acquisition of Rovio, making it a wholly owned subsidiary.
Aftermath
Rovio expanded Sega Sammy’s international mobile publishing and character ecosystem.
2020
Sell majority stake in Sega EntertainmentM&ABackground
COVID-19 sharply reduced attendance and revenue at physical amusement facilities.
Action taken
Sega Sammy agreed to sell 85.1% of Sega Entertainment to Genda while retaining Sega’s arcade-machine manufacturing activities.
Aftermath
Direct operation of arcade centers was reduced, allowing the group to focus on content and equipment businesses.
2015
Reorganize the group into three operating segmentsStrategyBackground
Traditional arcade and packaged-game growth had softened, while the group sought to balance pachinko dependence with digital entertainment, resorts and casino-related activities.
Action taken
Sega Sammy reorganized around Entertainment Contents, Pachinko & Pachislot, and Resort businesses.
Aftermath
The structure provided the framework for later expansion in digital games, mobile content, resorts and regulated gaming.
Recent events
Haruki Satomi becomes Sega Sammy group CEO[4]
Reported:
Haruki Satomi became group CEO of Sega Sammy Holdings, taking over from Hajime Satomi, who continued at the company as chairman and representative director.
SEGA announces video game and amusements division restructuring[5]
Reported:
SEGA announced a restructuring that would effectively split its video game division from its amusements division; both businesses would remain wholly owned by SEGA Sammy.
Sources5 sources
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