CAICA DIGITAL Inc.

CAICA DIGITAL Inc. is a Japanese listed IT and digital-finance company headquartered in Minami-Aoyama, Minato-ku, Tokyo. Its roots go back to Sun Japan (SJ), established on 14 July 1989 in Bunkyo-ku, Tokyo. After integrating other domestic companies in 2009 it became SJI, was renamed CAICA in February 2017, and adopted the current name CAICA DIGITAL on 1 November 2021. The company is listed on the Tokyo Stock Exchange Standard Market under securities code 2315. The group describes itself as opening up the world of digital finance. Its business spans security services built on roughly 50 years of financial-infrastructure experience, blockchain and crypto-asset exchange know-how, and financial-system development. It has served more than 300 client organizations and is an authorized distributor in Japan of HCL AppScan, a vulnerability-assessment tool. Its heritage includes building core systems for banks, securities firms and insurers from the 1970s onward, and designing and operating the domestic crypto-asset exchange Zaif from 2017. CAICA DIGITAL operates through group companies including CAICA Technologies, Caica Financial Holdings, Nex, Zenko Sogo Research Institute and EWJ. It has been involved in crypto assets through Zaif Holdings and related entities, and has issued its own ERC-20 token, Caica Coin (CICC), traded on Zaif and several overseas exchanges. The group has also pursued Web3, NFT and investment-fund activities, and has repeatedly restructured its portfolio through company splits, share transfers and liquidations. As of 31 October 2025 the company reported capital of 50,000,000 yen and 356 consolidated employees. Its major shareholders include Fisco, Nex Group, Jitsugyo no Nihon Digital, Japan Securities Finance, Rakuten Securities, SBI Securities and individual investors. It is a member of the Blockchain Promotion Association (BCCC) and the Japan Crypto Asset Business Association (JCBA).

CAICA DIGITAL's history begins with Sun Japan (SJ), established on 14 July 1989 in Bunkyo-ku, Tokyo. In 2005 a new company inherited the business from SJH, and in 2009 the company integrated other domestic firms and changed its name to SJI. In 2016 it adopted a fintech strategy focused on blockchain and crypto assets, and on 1 February 2017 it was renamed CAICA. In 2018 the company entered the financial business, making eWarrant Securities and the eWarrant Group subsidiaries, and treating Fisco Digital Asset Group (later Zaif Holdings) as an equity-method affiliate. On 1 March 2020 it moved to a holding-company structure and changed its name to CAICA Inc.; the information-systems business separated from CAICA was transferred to CAICA Technologies. In November 2020 it established CAICA Digital Partners for corporate support platform operations, and in December 2020 it invested in and made subsidiaries of the EWC anonymous partnership's crypto-asset fund and the EWA anonymous partnership's art fund alongside eWarrant Securities. In February 2021 CAICA strengthened its capital and business alliance with Fisco and established the CK Strategic Investment Limited Partnership for investments in listed and unlisted equities and bonds. In March 2021 it acquired 40.7% of Zaif Holdings and consolidated it under the effective-control standard, bringing Zaif Inc. and Zaif Capital under consolidation. In August 2021 it raised its Zaif Holdings stake to 83.76% through a share delivery. On 1 November 2021 it changed its name to CAICA DIGITAL Inc. In November 2021 it established Caica Financial Holdings as an intermediate holding company for financial services through a company split, and in December 2021 it acquired all shares of Fisco Capital through Caica Financial Holdings, renaming it Caica Finance. In October 2022 the company announced its entry into the Web3 business. In 2023 it renamed Caica Securities to EWJ, abolished Caica Securities' Type I financial instruments business and investment management business, and transferred all shares of Caica Exchange Holdings (now ZED Holdings), deconsolidating Caica Exchange (now Zaif), Caica Capital (now Web3 Capital) and related entities. In 2024 it resolved to dissolve and liquidate CAICA Digital Partners, CK Strategic Investment Limited Partnership and EWARRANT INTERNATIONAL LTD. In 2025 it resolved to dissolve and liquidate Caica Finance, terminated its capital and business alliance with Cushim, and made Nex a wholly owned subsidiary through a share exchange. Throughout this period the group has maintained a security and financial-engineering business. Its heritage page states that it has built core systems for banks, securities firms and insurers for more than 50 years, designed and operated the Zaif crypto-asset exchange from 2017, and now serves as an authorized distributor of HCL AppScan. It has issued the ERC-20 token Caica Coin (CICC), traded on Zaif and overseas exchanges, and has pursued NFT and Web3 initiatives.

• Sun Japan (SJ) established in Bunkyo-ku, Tokyo.

• New company inherits business rights from SJH.

• Company integrates other domestic firms and is renamed SJI.

• Adopts fintech strategy focused on blockchain and crypto assets.

• Renamed CAICA Inc.

• Enters financial business; makes eWarrant Securities and eWarrant Group subsidiaries; Fisco Digital Asset Group becomes equity-method affiliate.

• Moves to holding-company structure and renamed CAICA Inc.; information-systems business transferred to CAICA Technologies.

• Establishes CAICA Digital Partners.

• Invests in and makes subsidiaries of EWC crypto-asset fund and EWA art fund.

• Strengthens capital and business alliance with Fisco; establishes CK Strategic Investment Limited Partnership.

• Acquires 40.7% of Zaif Holdings and consolidates it; Zaif and Zaif Capital become consolidated subsidiaries.

• Raises Zaif Holdings stake to 83.76% through share delivery.

• Renamed CAICA DIGITAL Inc.

• Establishes Caica Financial Holdings as intermediate holding company.

• Acquires all shares of Fisco Capital, renamed Caica Finance.

• Announces entry into Web3 business.

• Transfers all shares of Caica Exchange Holdings (now ZED Holdings), deconsolidating Caica Exchange (now Zaif) and Caica Capital (now Web3 Capital).

• Abolishes Caica Securities' Type I financial instruments business and investment management business.

• Renames Caica Securities to EWJ Inc.

• Resolves to dissolve and liquidate CAICA Digital Partners, CK Strategic Investment Limited Partnership and EWARRANT INTERNATIONAL LTD.

• Resolves to dissolve and liquidate Caica Finance; terminates capital and business alliance with Cushim.

• Makes Nex a wholly owned subsidiary through a share exchange.

A digital-finance and security group leveraging decades of financial-infrastructure experience and crypto-asset exchange know-how.

• HCL AppScan deployment support

  Authorized distributor in Japan providing license arrangement, initial setup, operational support and scan-result training.

• Vulnerability assessment

  Automated and manual vulnerability assessment for web applications and APIs.

• Zaif crypto-asset exchange

  Domestic crypto-asset exchange designed and operated by the group from 2017; later deconsolidated.

• Caica Coin (CICC)

  ERC-20 token issued by CAICA DIGITAL, traded on Zaif and overseas exchanges.

• NFT launchpad (Zaif INO)

  Primary NFT sales platform provided by Caica Financial Holdings from 2022.

1. 1CAICA DIGITAL official websitecaica.jp
2. 2CAICA DIGITAL history pagecaica.jp
3. 3CAICA DIGITAL company profilecaica.jp
4. 4Wikidata: Caica Digitalwikidata.org
5. 5Wikipedia (Japanese): CAICA DIGITALja.wikipedia.org