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NETWORK
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History
165 EVENTS
Business Brain Showa Inc. was established in August 1967.
Company established
Established Seibu Information Center Inc. in Tokyo to unify information processing functions of the Seibu Distribution Group (at that time) and create new information service businesses, including payroll processing.
Renamed to Business Brain Showa Inc. in January 1973.
Renamed to Business Brain Showa (BBS)
Established Input Service Showa Inc. in October 1973.
Incorporated Input Service Showa Co., Ltd.
Established Shizuoka Prefecture Medical Information Center Inc. in February 1978.
Relocated headquarters to Tokyo (Uchisaiwaicho, Chiyoda-ku) in January 1982.
Relocated headquarters to Tokyo (Chiyoda Ward Uchiyamacho)
Established Hospital Brain Showa Inc. (HBS) in August 1984.
Renamed to Business Brain Ota Showa Inc. in October 1986.
Simultaneously renamed Input Service Showa Inc. to ISS (I.S.S.) Inc.
Renamed to Business Brain Ota Showa Co., Ltd.
Renamed Input Service Showa Co., Ltd. to ISS Co., Ltd.
Developed a general-purpose audit program with support from the Ministry of International Trade and Industry (now METI).
Developed a general-purpose audit program with support from the Ministry of International Trade and Industry (now: Ministry of Economy, Trade and Industry)
Developed the accounting system "ACT-i/N".
Developed accounting system "ACT-i/N"
Developed the consulting method "Management SI".
Developed consulting method "Management SI"
Developed the management consulting key concept "On-Time Management".
Developed key concept for management consulting "On-Time Management"
Developed the accounting system "ACT-90".
Developed accounting system "ACT-90"
Developed the international accounting system "ACT-II".
Developed international accounting system "ACT-II"
Listed on JASDAQ in November 1991.
Listed on JASDAQ
Changed trade name to Saison Information Systems Inc.
Established GAB Consulting Inc. in October 1992.
Established GAB Consulting Co., Ltd.
Obtained system integration registration certification from the Ministry of International Trade and Industry (now METI).
Certified system integration registration by the Ministry of International Trade and Industry (now: Ministry of Economy, Trade and Industry)
Established Financial Brain Systems Inc. in November 1997.
Established Financial Brain Systems Co., Ltd. (FBS)
Started payroll outsourcing service
Developed the international accounting standards compliant solution "ACT-CS" in July 1999.
Developed solution "ACT-CS" for international accounting standards compliance
In April 2000, merged Shizuoka Medical Information Center and Hospital Brain Showa, and changed the company name to Mix Corporation (MICS).
At the same time, established Global Security Expert Corporation (GSX).
Established GSX Co., Ltd., a global security expert
Started internet attendance management service
In May 2001, changed the company name from ISS Corporation to Adock Corporation.
Renamed I.S.S. Co., Ltd. to Adhoc Co., Ltd.
Established EY Outsourcing Services Corporation (EYOS) in April 2002.
Established EY Outsourcing Services Co., Ltd.
Started internet statement inquiry service
Developed the web-based business application development support system "MBB" in June 2003.
Developed Web-compatible business application development support system "MBB"
Changed the company name from EY Outsourcing Services Corporation to EOS Corporation in April 2004.
Renamed EY Outsourcing Services Co., Ltd. to EOS Co., Ltd.
Established Adfine Corporation in October 2004.
Established Adfine Co., Ltd.
Established PLM Japan Corporation (PLMJ) in December 2004.
Established PLM Japan Co., Ltd. (PLMJ)
Developed the new accounting package system "ACT-NetPro" in October 2005.
Developed the accounting system "ACT-ion" for local independent administrative agencies in the same month.
Developed new accounting package system "ACT-NetPro"
Developed accounting system "ACT-ion" for regional independent administrative agencies
Formed a capital and business alliance with Hitachi Software Engineering (now: Hitachi Solutions) in February 2006.
Capital and business alliance with Hitachi Software Engineering Co., Ltd. (now: Hitachi Solutions, Ltd.)
Started mobile device internet statement inquiry service
Obtained JISQ27001:2006 (ISO/IEC27001:2005) certification in the Public System Headquarters in March 2007.
Obtained JISQ27001:2006 (ISO/IEC27001:2005) certification in the Public System Headquarters
Developed the internal control support package "IC Solution Series" in the same month.
Developed internal control support package "IC Solution Series"
Internet application service "Bulas ESS" launch
In December 2008, Addock Corporation acquired the business of Panache Corporation.
Adock Co., Ltd. acquired the business of Panash Co., Ltd.
In February 2010, Addock Corporation implemented a company split and established ISS Corporation.
Adock Co., Ltd. implemented company split, establishing ISS Co., Ltd.
In the same month, changed the company name from Addock Corporation to Panache Corporation (PANACHE).
Financial Brain Systems absorbed Adfine Corporation.
Adock Co., Ltd. changed its trade name to Panache Co., Ltd.
Financial Brain Systems Co., Ltd. absorbed Adfine Co., Ltd.
Relocated the headquarters from Uchisaiwaicho, Chiyoda-ku to Minami Azabu, Minato-ku in June 2010.
Relocated headquarters from Uchisaiwaicho, Chiyoda-ku to Minami Azabu, Minato-ku
Niigata BPO Center opened
In January 2011, Business Brain Ota Showa Corporation absorbed GAB Consulting Corporation.
Business Brain Ota Showa Co., Ltd. absorbed Gabc Consulting Co., Ltd.
Developed a data linkage solution "Journal Entry HUB Solution" that integrates accounting information systems.
Developed "Journal Entry HUB Solution," a data linkage solution that integrates accounting information system interconnection
EOS Corporation and Panash Corporation merged and changed the trade name to EP Consulting Services Inc. (EPCS).
Merged EOS Co., Ltd. and Panash Co., Ltd., renamed to EP Consulting Services (EPCS)
Relocated headquarters from Minami Azabu, Minato-ku to Nishi-Shimbashi, Minato-ku in May 2012.
Relocated headquarters from Minami Azabu, Minato-ku to Nishi-Shimbashi, Minato-ku
Established a branch in Singapore in December 2012.
Opened Singapore branch
Formed a capital and business alliance with JFE Systems Inc. in May 2013.
Capital and business alliance with JFE Systems, Inc.
Expanded into China in October 2013 and launched "Journal Entry HUB Cloud & CFO Delegation Service," an accounting management service platform for Japanese companies.
Started accounting management service platform "Journal Entry HUB Cloud & CFO Delegation Service" for Japanese companies expanding into China
Opened the Kumamoto BPO Center as a base for management services (BPO) business in June 2014.
Established a local subsidiary "BBS (Thailand) Co., Ltd." in Thailand in the same month.
Established Kumamoto BPO Center as a base for management services (BPO) business
Established local subsidiary "BBS (Thailand) Co., Ltd." in Thailand
Acquired shares of TechnoWare Sync Inc. (TEC) and made it a subsidiary in September 2014.
Acquisition of TEC's shares and making it a subsidiary
Changed market from JASDAQ to the Second Section of the Tokyo Stock Exchange in November 2014.
Market change from JASDAQ to TSE Second Section
Opened the Kumamoto BPO Second Center in February 2015.
Established Kumamoto BPO Second Center
Promoted from the Second Section to the First Section of the Tokyo Stock Exchange in August 2015.
Formed a business alliance with ProNexas Inc. in the same month.
From TSE Second Section to TSE First Section designated stock
Business alliance with ProNexas Inc.
Developed new accounting solution "ACT-Potentia" for group management foundation
Business alliance with Saison Information Systems Inc.
Established BBS Outsourcing Kumamoto Inc. (BOK) and opened the Kumamoto BPO Third Center in January 2016.
Established BBS Outsourcing Kumamoto Inc. (BOK) and opened Kumamoto BPO Third Center
Acquired shares of BBS Outsourcing Services Inc. (BOS) and made it a subsidiary in the same month.
Split off the BPO business of Saison Information Systems Co., Ltd., and establish Business Brain Ota Showa Group as BBS Outsourcing Service Co., Ltd.
Acquired shares of BBS Outsourcing Services Inc. (BOS) and made it a subsidiary
Established a local subsidiary "BUSINESS BRAIN SHOWA-OTA VIETNAM CO., LTD." in Vietnam in June 2016.
Established local subsidiary "BUSINESS BRAIN SHOWA-OTA VIETNAM CO.,LTD." in Vietnam
Formed a capital and business alliance with Advanced Business Directions Inc. in November 2016.
Capital and business alliance with Advance Business Directions Inc.
Acquired shares of Global Security Experts Inc. and made it a subsidiary in February 2017.
Relocated headquarters to Nishishinbashi, Minato-ku.
Formed a business alliance with RPA Technologies Inc. in April 2017.
Business alliance with RPA Technologies Inc.
Celebrated the 50th anniversary of Business Brain Ota Showa Inc. in August 2017.
Business Brain Ota Showa Inc. celebrates its 50th anniversary
Opened Kumamoto BPO Center No. 4 in October 2017.
Established Kumamoto BPO Fourth Center
Established a joint venture New Relation Info Biz Inc. with Nomura Research Institute and C&S in December 2017.
Established joint venture New Relation Info Biz Inc. with Nomura Research Institute and CENS Inc.
Acquired shares of Japan Payment Technology Inc. and made it a subsidiary in December 2018.
Acquired shares of Japan Payment Technology Co., Ltd. (PTJ), becoming a subsidiary
Merged TechnoWear Sync Inc. and ISS Inc. in October 2019.
Merged Techno Wear Sink Co., Ltd. and ISS Co., Ltd.
Acquired shares of Joyworks Inc. (JW) and made it a subsidiary in August 2021.
Acquired shares of Joyworks Co., Ltd. (JW), becoming a subsidiary
Relocated headquarters from Hibiya Central Building to Hibiya Fort Tower in December 2021.
Relocated headquarters to Hibiya Fort Tower, Nishishinbashi, Minato-ku.
Relocated headquarters from Hibiya Central Building to Hibiya Fort Tower
Acquired shares of BSC Inc. and made it a subsidiary in April 2022.
Acquired shares of BSC Co., Ltd., becoming a subsidiary
Partially sold shares of Global Security Experts Inc. and became an affiliated company in May 2023.
Partially sold shares of Global Security Experts Co., Ltd. (GSX), becoming an affiliated company
Acquired shares of Fresco Inc. (FRSC) and made it a subsidiary in November 2023.
Acquired shares of Fresco Co., Ltd. (FRSC), becoming a subsidiary
Acquired shares of Fresco Inc. (FRSC) and made it a subsidiary
Opened Fukuoka Branch in December 2023.
Fukuoka Branch opened
Acquired shares of Twinkle Inc. (TWK) and made it a subsidiary in January 2024.
Acquired shares of Twinkle Co., Ltd. (TWK), becoming a subsidiary
Established BBS Managed Services Inc. in February 2024.
Established BBS Managed Services Co., Ltd. (BMS)
Merged Business Brain Ota Showa Inc. with BBS Outsourcing Services Inc. and Japan Payment Technology Inc. (PTJ) in April 2024, and opened BPO centers in Niigata and Okinawa as BBS bases.
Business Brain Ota Showa absorbed BBS Outsourcing Service Co., Ltd. and Japan Payment Technology Co., Ltd. (PTJ). Both companies' BPO centers in Niigata and Okinawa were established as BBS bases. Historical information about BOS merger (BOS history)
Business Brain Ota Showa Inc. merged with BBS Outsourcing Services Inc. (BOS) and Japan Payment Technology Inc. (PTJ)
Opened BPO centers in Niigata and Okinawa as BBS bases
Opened Sapporo BPO Center in July 2024.
Sapporo BPO Center opened
Opened Sapporo First BPO Center
Opened Sapporo Second BPO Center
Dissolution of capital alliance with Hitachi Solutions Ltd. and continuation of business alliance
Launch of next-generation system platform "ACT-Horizon"
Opened Sapporo 3rd BPO Center
Outsourcing Service Division renamed to Hamamatsu BPO Center
Business alliance with Japan Knowledge Co., Ltd.
Acquired shares of System One Co., Ltd. (SONE), making it a subsidiary
FBS and JW merged
§07
News
97 ARTICLES
BBS Offers “ACT-Horizon Core,” a Platform for Systematizing Companies’ Strengths
Business Brain Showa-Ota Inc. (BBS) offers “ACT-Horizon Core,” a platform for flexibly systematizing business operations that give companies a competitive edge. BBS proposes “Fit to Business,” using packaged software for standard operations while building systems tailored to each company’s unique operations. ACT-Horizon Core helps companies leverage their strengths and build flexible systems that can adapt to changes in their business.
BBS Exhibits at the 9th Nagoya Smart Factory EXPO, November 2026 in Nagoya
BBS, a subsidiary of Business Brain Ota Showa, will exhibit at the 9th Nagoya Smart Factory EXPO held from November 25 to 27, 2026, at the Aichi International Exhibition Center. The exhibition will showcase solutions that support key manufacturing operations such as production planning, cost management, and procurement, as well as cross-functional support for analyzing and visualizing performance data. These solutions propose business improvements at each stage of planning, execution, and analysis.
We have released 'Accounting Operations Manual Creation Support' as part of our management accounting consulting services. Certified public accountants and other accounting and financial reporting experts build business flows through visualization and standardization of operations, and support the creation of manuals that can be used in practice.
Release of Hamamatsu New Office Opening Ceremony Report
In July 2026, the Shizuoka branch in the Hamamatsu area and the Hamamatsu BPO Center relocated to the same office, designed with a bright and soft space concept that encourages employees to come to work. We are publishing the new office's BBS workspace and the opening ceremony.
BBS joins STATION Ai
Business Brain Ota Showa Co., Ltd. (BBS) joined as a partner company in the largest open innovation hub in Japan operated by SoftBank's subsidiary STATION Ai. Leveraging its track record in management accounting, system construction, and BPO, BBS aims to deepen its understanding of new technologies such as AI and DX, and expand its knowledge to benefit customers' management and operations.
ENEOS Xplora Interview Video Release
An interview video featuring the reasons for choosing BBS as an accounting and finance BPO partner, support from a certified public accountant, and expectations for future operational improvements has been posted on the case page of ENEOS Xplora Inc. The video is located at the bottom of the page and can be viewed alongside the case article.
BBS to Exhibit at intra-mart LIVE 2026 Realize
Business Brain Showa-ota Inc. (BBS) exhibited at intra-mart LIVE 2026 Realize, hosted by NTT DATA Intra-Mart, and introduced new punchout and AI analysis features in its ACT-iAP Procurement and Purchasing Template. The annual conference focuses on corporate transformation driven by AI and business processes. Developed on the intra-mart platform, BBS's template flexibly supports procurement tasks such as quotations, ordering, and acceptance inspections.
BBS to discuss management accounting and AI-enabled accounting at SuperStream Forum 2026
Business Brain Showa-Ota Inc. (BBS) will speak and join a panel discussion at SuperStream Forum 2026 on September 17, 2026. BBS Fellow Keiichi Yano will present “Moving Beyond P&L Dependence: Management Accounting for Balance Sheet Management,” explaining practical approaches to improving capital efficiency and the role of accounting departments in the AI era. Representatives from BBS and two other companies will discuss management accounting consulting and system development and operations.
Daicel's Accounting Transformation Case Study Published
After adopting BBS's accounting and finance BPO service, Daicel improved visibility and standardized its accounting operations. The service reduced workloads and enabled optimal allocation of human resources. Resources freed up were shifted to analysis and business improvement, advancing higher value-added work. The initiative contributed to transforming the accounting department and strengthening organizational capabilities.
Partial Update to Scope 3 Greenhouse Gas Emissions Results
On September 4, 2026, the company reviewed its calculation methodology for Scope 3 emissions (Category 15) and updated its greenhouse gas emissions results for 2024 and 2025. Details are available in the greenhouse gas emissions results section of its environmental data.
§08
Public records
GOV
National Tax Agency basic information3010401088688
Source: National Tax Agency Corporate Number Publication Site, basic three items
