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Validator List

Validators are the operators of a node server who sign the blockchain. The blockchain ensures the credibility of blockchain data with Validators verifying mutually.

The number of Validators are expected to increase up to 21 companies, and network participant companies to expand around 100 by phase 3.

Consortium Management​

Validator List​

CAC Corporation​

  • CAC, by means of its digital technologies, contributes to digital innovation by offering valuable services and products which have a beneficial impact on our customers and on the future of our society.

CORGEAR Co.Ltd​

  • CORGEAR, a startup within the Sony Group, is a group of creators and technologists committed to achieving social innovation through solving community challenges.
  • Cyberlinks provides cloud services primarily to the retail and government sectors. Based on "Shared Cloud," the company proposes safe,secure, low-cost, high-quality, and highly functional cloud services,contributing to the promotion of DX throughout the industry.

DENTSU INC.​

  • DENTSU INC. provides advertising, marketing and other services, and aims to contribute to the success of our clients' brands and businesses through the use of various media, technologies and design.

G.U.Technologies, Inc.​

  • G.U.Technologies, Inc. aims to create a free and happy society for everyone with rich ideas and solid technologies for the new digital revolutionary era where finance and information are fused together by blockchain.

Hatena Co., Ltd.​

  • Hatena Co., Ltd. develops content platform services for individual users, including 'Hatena Blog' and 'Hatena Bookmark.' By leveraging the technical expertise and user base we have cultivated through these platforms, we also offer a range of services and solutions tailored for businesses.

insprout Corporation​

  • insprout Corporation is in the business of building the future through investmen, internet services, and system development, with a focus on IT.

Kudasai Co., Ltd​

  • Kudasai Co., Ltd. was founded in 2020 as KudasaiJP, one of the largest crypto asset communities in Japan. Kudasai Co., Ltd. supports the growth of Web3 companies through multi-faceted and comprehensive growth support solutions, from blockchain startup planning and development to advisory and community expansion.

Minna Bank Co., Ltd.​

  • Minna Bank Co., Ltd. is a digital bank that operates entirely through smartphones. As a "connecting entity" that links people, things, money, and information in society, we create new value through providing "new financial functions."

NTT Communications Corporation​

  • NTT Communications, as a core company of the corporate business in the DOCOMO Group, will provide value by transforming the structure of society and industry on a global level, creating new work styles, and supporting DX in local communities.

Nethermind​

  • Nethermind is a blockchain research and software engineering company that empowers enterprises and developers to build on decentralized systems. From cryptographic research to security, DeFi, and protocol development, Nethermind's expertise spans a wide range of Web3 areas. Recently, the company expanded into hardware, zero-knowledge proofs, and AI, driving innovation at the intersection of blockchain and robotics. With over 300 team members, including 250 engineers, Nethermind plays a key role in Ethereum development and Starknet ecosystem growth. From ideation to execution, Nethermind provides comprehensive services to help clients succeed.

pixiv Inc.​

  • pixiv Inc. provides platform and content services that make creative activities more fun for creators around the world.

SBINFT Co., Ltd.​

  • SBINFT, a subsidiary of SBI Holdings, focuses on Web3 businesses centered around NFTs. Guided by its corporate philosophy, "Be the FIRST. Be the STANDARD. Bringing NFTs to society's core." SBINFT aims to lead the way in delivering innovative NFT-based services to society, establishing itself as a trusted platform that becomes the norm. Since April 2021, it has operated the invitation-only NFT marketplace "SBINFT Market," and from April 2024, it offers "SBINFT Mits," a marketing platform enabling the visualization, cultivation, and acquisition of fans.

TIS Inc.​

  • TIS provides a wide range of services and products, from core systems that support business operations to applications that hone competitiveness and platforms that underpin systems. We identify management issues for our clients and present IT solutions that anticipate latent needs.

extra mile Inc.​

  • extra mile Inc., a member of the TV Asahi Group, aims to contribute to society by creating new ideas and services that make the world more convenient, enjoyable, and life-enriching, and by providing entertainment that brings smiles to everyone's faces through the pursuit of innovation.

Kyoto University of Arts​

  • "Straightforward art that loves nature and people." The school attracts highly motivated students from Japan and around the world, ranging in age from 18 to 92. With over 8,500 students, it is the largest art college in Japan.

Others​

Japan Open Chain ties up with Ethereum Foundation and forms a cooperative relationship with Enterprise Ethereum Alliance, of which world’s leading companies are members. Each working group is advancing research on Enterprise Ethereum and able to have technological advice from development members.