Fuva Brain Limited

Fuva Brain Limited is a Japanese information security company headquartered in Kioicho, Chiyoda-ku, Tokyo. It was founded in May 2001 as Ahkun Corporation (株式会社アークン) and initially focused on information security services. The company listed on the Tokyo Stock Exchange Mothers Market in December 2015, changed its name to Fuva Brain in October 2018, and moved to the Growth Market in April 2022 and then to the Standard Market in February 2026. The name "Fuva" is an acronym for Flexible, Usable, Valuable, and Accessible, reflecting the company's aspiration to be a "brain group" creating future value. Fuva Brain develops and sells a wide range of cybersecurity products and services, including gateway/network security, endpoint security, and human security solutions. Its flagship products include the Eye "247" series (Safety Zone, Work Smart, AntiMalware), Network Blackbox (NDR), Cato SASE Platform, and various security assessment and training services under the FB SAT brand. The company also operates several subsidiaries in IT staffing, recruitment consulting, and system integration, forming the Fuva Brain Group. As of the fiscal year ended March 2026, the company reported adjusted revenue of 6,057 million yen and adjusted operating profit of 734 million yen on a consolidated basis. It employs 148 engineers and serves 609 client companies. Fuva Brain is led by President and CEO Hideyuki Koshimizu and is committed to providing flexible, usable, valuable, and accessible security solutions to society.

Fuva Brain Limited was founded in May 2001 as Ahkun Corporation (株式会社アークン) in Kanda-Sudacho, Chiyoda-ku, Tokyo, with capital of 20 million yen, by Akira Watanabe, Hisaki Hiruma, and Tatsuki Kanayama. Watanabe became the first representative director. The company initially focused on information security services. In June 2003, Ahkun began selling the data encryption solution 'Dataclasys Projectoffice'. In January 2004, it formed a business partnership with Imperva, Inc. (USA) for information leakage prevention and data risk management solutions. In December 2004, it partnered with and invested in South Korean anti-malware vendor Vision Power Co., Ltd. In June 2005, it established Japan's first spyware research center to strengthen domestic spyware R&D. In November 2005, it launched 'Ahkun AntiMalware-V4', a comprehensive malware countermeasure. In May 2006, 'AntiMalware-ASP' was adopted by Business Plala, operated by Plala Networks (now NTT Plala). In November 2010, Hisaki Hiruma became representative director. In October 2013, the headquarters moved to Iwamotocho, Chiyoda-ku. In December 2015, Ahkun listed on the Tokyo Stock Exchange Mothers Market. In January 2016, an Osaka office was opened. In May 2017, Keiichi Minemura became representative director. In August 2017, the company obtained PrivacyMark certification. In May 2018, it launched 'EX AntiMalware v7'. In October 2018, Hideyuki Koshimizu became representative director and the company changed its name to Fuva Brain Limited. In November 2018, the headquarters moved to Kioicho, Chiyoda-ku. In February 2019, Niigata and Fukuoka offices were opened. In July 2019, it launched the work style reform support product 'Eye "247" Work Smart'. In April 2021, GH Integration Co., Ltd. became a subsidiary. In April 2022, the company transitioned to the Tokyo Stock Exchange Growth Market. In November 2022, Ad Top Co., Ltd. became a subsidiary. In July 2023, it established investment subsidiary Fuva Investment Co., Ltd. In November 2023, it co-founded Fuva Cross Technologies Co., Ltd. In February 2024, CONVICTION Co., Ltd. became a subsidiary. In March 2024, Quad Miners Japan Co., Ltd. became a group company. In September 2024, ARPEGGIO Co., Ltd. (now Asemble Co., Ltd.) became a subsidiary. In October 2024, Ichiaru Co., Ltd. became a subsidiary. In February 2026, the company changed its market listing to the Tokyo Stock Exchange Standard Market. In March 2026, ProofX Co., Ltd. became a subsidiary. In May 2026, Field Tech Co., Ltd. became a subsidiary. Throughout its history, Fuva Brain has expanded from a pure-play security software vendor into a group with diverse IT service subsidiaries, while maintaining its core focus on cybersecurity solutions.

• Founded as Ahkun Corporation in Kanda-Sudacho, Chiyoda-ku, Tokyo with capital of 20 million yen.

• Launched data encryption solution 'Dataclasys Projectoffice'.

• Business partnership with Imperva, Inc. (USA) for information leakage prevention and data risk management.

• Business partnership and capital investment in Vision Power Co., Ltd. (South Korea).

• Established Japan's first spyware research center.

• Launched 'Ahkun AntiMalware-V4'.

• 'AntiMalware-ASP' adopted by Business Plala operated by Plala Networks.

• Hisaki Hiruma became Representative Director.

• Headquarters moved to Iwamotocho, Chiyoda-ku.

• Listed on Tokyo Stock Exchange Mothers Market.

• Osaka office opened.

• Keiichi Minemura became Representative Director.

• Obtained PrivacyMark certification.

• Launched 'EX AntiMalware v7'.

• Hideyuki Koshimizu became Representative Director; company renamed to Fuva Brain Limited.

• Headquarters moved to Kioicho, Chiyoda-ku.

• Niigata and Fukuoka offices opened.

• Launched 'Eye "247" Work Smart'.

• GH Integration Co., Ltd. became a subsidiary.

• Transitioned to Tokyo Stock Exchange Growth Market.

• Ad Top Co., Ltd. became a subsidiary.

• Established investment subsidiary Fuva Investment Co., Ltd.

• Co-founded Fuva Cross Technologies Co., Ltd.

• CONVICTION Co., Ltd. became a subsidiary.

Integrated cybersecurity solutions provider combining products and services to protect enterprise information assets.

• Eye "247" Safety Zone

  Multi-layered security product combining UTM, endpoint security, and information leakage prevention tools.

• Eye "247" Work Smart Cloud

  Cloud-based work style reform and productivity visualization tool covering labor management to information leakage prevention.

• Eye "247" AntiMalware

  Endpoint security product with strong malware countermeasures and management functions.

• Network Blackbox

  Next-generation NDR product using full packet capture to detect and respond to cyber threats.

• Cato SASE Platform

  World's first SASE platform integrating SD-WAN and security into a single cloud service.

• FB SAT series

  Security assessment and training services including targeted attack email drills, vulnerability diagnostics, and cybersecurity training.

1. 1株式会社フーバーブレイン 公式サイトfuva-brain.co.jp
2. 2沿革 – 株式会社フーバーブレインfuva-brain.co.jp
3. 3企業情報 – 株式会社フーバーブレインfuva-brain.co.jp
4. 4Products – 株式会社フーバーブレインfuva-brain.co.jp
5. 5フーバーブレイン - Wikipediaja.wikipedia.org
6. 6Fuva Brain - Wikidatawikidata.org