Tokyo · Since 2016

Financial infrastructure for a connected economy

We build open-source blockchain systems with central banks and public institutions — from Cambodia’s national payment network to SORA Nexus, a shared ledger designed to connect economies while every institution keeps control of its own data and rules.

Why SORAMITSU

More people should be able to participate in the economy.

  • 30M+accounts on payment systems built on our technology
  • 10+years in the blockchain industry

SORAMITSU bridges cutting-edge blockchain technology with the real needs of governments and businesses. We build the infrastructure behind everyday payments, access to savings and exchange across borders: open-source engineering, developed with public institutions.

  1. 01

    Everyday payments

    National payment systems that connect banks, payment providers and people through one common network.

  2. 02

    Access to savings

    Digital currency and savings bonds that bring public financial services to a mobile phone.

  3. 03

    Exchange across borders

    Interoperable infrastructure that lets institutions connect while keeping control of their currencies, policies and data.

Hyperledger Iroha tenth-anniversary artwork

Our story

Ten years of building what comes next

2016

Hyperledger Iroha: a platform for digital assets

SORAMITSU was founded in Tokyo in 2016. That October, Hyperledger Iroha — initially proposed by contributors from SORAMITSU, Hitachi, NTT DATA and Colu — was accepted into the Hyperledger Project. Its goal was practical: make distributed ledger technology easier to use for digital assets, identity and permissions.

  • Accepted into Hyperledger on 13 October 2016
  • Iroha 1.0 released in May 2019
  • Today part of LF Decentralized Trust
Hyperledger Iroha turns ten
Official launch ceremony of Bakong, the next-generation payment system in Cambodia

2020

Bakong: Cambodia’s national payment network

Co-developed with the National Bank of Cambodia and officially launched on 28 October 2020, Bakong connects banks and payment providers so people and businesses can pay and send money through one common system, in Cambodian riel and US dollars.

  • Built on Hyperledger Iroha
  • ≈45 million accounts and 450% of GDP processed in 2025
  • QR payments linked with eight regional economies
Read the launch release

Bakong in 2025

National scale, every day

Built with the National Bank of Cambodia on Hyperledger Iroha, Bakong processed payments worth 450% of Cambodia’s GDP in 2025.

  • ≈45 millionBakong accounts
  • 450%of Cambodia’s GDP processed in 2025 (KHR 899.1 trillion)
  • 1.3 billiontransactions in 2025, up 118.7% year on year
  • 8regional economies linked through QR payments

Sources: National Bank of Cambodia, Annual Report 2025 and Financial Stability Review 2025.

2021–

Digital money and savings across Asia and the Pacific

Experience in Cambodia informed work with central banks and governments across the region: proofs of concept for central bank digital currency in Lao PDR, the Solomon Islands and Papua New Guinea, and Palau Invest, a digital savings bond prototype built with Palau’s Ministry of Finance.

The next chapter

SORA Nexus

One shared ledger. Sovereign data spaces.

Today every institution runs its own ledger, and connecting them means bridges, intermediaries or giving up control. SORA Nexus is designed differently: one network made of data spaces, where each central bank, bank or market defines its own data, authority and policies — and still settles with everyone else.

Hyperledger Iroha 3 and SORA Nexus are in development; validation of the architecture continues.

Partners

Our partners

We collaborate with central banks and government agencies, technology companies and consortia, financial institutions and startups, and academic and research institutions.

For central banks and governments

Sovereign digital money, proven at national scale

From the first feasibility study to national operation: how we work with central banks, ministries and development partners.

For central banks and governments

SORA Nexus

One shared ledger. Sovereign data spaces.

  • Sovereign data spaces

    Each institution organises its own data, permissions, policies and applications, and decides what others can see.

  • Parallel lanes

    Lanes route and certify transactions inside each data space, so capacity grows by adding lanes, not chains.

  • One global chain

    Eligible transactions are merged, executed and recorded in one shared, ordered history — without bridges.

  • Deterministic by design

    The Iroha Virtual Machine and the Kotodama language make financial rules executable and independently verifiable.

  • Settle together

    Linked obligations across data spaces are designed to complete together: both legs of an FX trade, or a security and its payment.

  • Ready for existing systems

    Work on ISO 20022 messaging is intended to connect SORA Nexus with the infrastructure institutions already run.

Services

What we do

SORAMITSU is an award-winning financial technology company specialising in blockchain-based solutions for digital assets, digital identity and financial infrastructure. As the original developer of Hyperledger Iroha and an active open-source contributor, we design, build and operate systems for central banks, governments and enterprises.

  • Blockchain and Web3 development

    Digital asset solutions
    Create central bank digital currency (CBDC) systems, private tokens and asset tokenisation platforms, and integrate secure wallets.
    Web3 and DeFi expertise
    Develop decentralised exchange platforms, staking mechanisms, cross-chain bridges and seamless TradFi–DeFi integrations.
    Enterprise blockchain solutions
    Improve efficiency in logistics, finance and supply chains with bespoke blockchain solutions.
    Security and audits
    Comprehensive smart contract and blockchain system audits for robust, reliable operations.
  • Stablecoin issuance in Japan

    Regulatory and risk advisory
    Requirements under the Payment Services Act, AML/CFT controls, and issuance, redemption and treasury design.
    Design to operation
    Token models, payment flows, proofs of concept on Hyperledger Iroha, systems integration and ongoing operations.
    Learn more
  • DevOps, QA and security

    Infrastructure automation
    Automated systems that improve efficiency and reduce operating costs.
    Scalable, stable solutions
    Tailored approaches that prioritise scalability and product reliability.
  • Corporate training

    Customised programmes
    Web3, blockchain, DevOps, security and QA training tailored to your team’s skill levels.
    All experience levels
    Hands-on, practical modules for beginners and advanced learners.
  • Outstaffing and recruitment

    Expert talent pool
    Professionals in blockchain, Web3, DevOps, QA, frontend and backend development.
    Rigorous screening
    Customised recruitment and thorough candidate evaluation for the right fit.
  • Product design, UX/UI and brand experience

    Product and UX/UI design
    Intuitive interfaces and experiences aligned with user needs and business goals.
    Brand experience
    Cohesive brand identities that resonate across platforms and channels.
  • Marketing, ecosystem growth and education

    Marketing and ecosystem growth
    Campaigns, partnerships, community building and developer engagement.
    Tokenomics and education
    Sustainable economic models and accessible educational content for Web3 adoption.

Selected case studies

Our groundbreaking projects

From advanced blockchain frameworks and national payment systems to cross-border solutions, telecom fraud prevention and decentralised economies.

What our clients say about us

  • SORAMITSU exceeded our expectations in sharing their knowledge. SORAMITSU listened to our needs and created and presented a comprehensive curriculum. They were prepared, attentive, and responsive to the questions and follow-ups/action items.

    Michael O’KeeffeHead of Sales and Customer Success, Immunefi (opens in a new tab)
  • The joint venture was founded on the principles that tackling telco fraud requires both a collective yet creative effort. Through our partners at SORAMITSU: We’re excited about what we can bring to strengthen the lives of fraud intelligence professionals everywhere, and to protect users globally.

    Anthony SaniCo-Founder of Fraud Intelligence Limited (opens in a new tab) and CEO of Orillion Solutions (opens in a new tab)
  • We are pleased with the progress made on the Open Source DEX by SORAMITSU. This is a significant milestone and a testament to providing our ecosystem possibilities that create further interoperability, and decentralization within the Klaytn Metaverse.

    Sangmin SeoChairman, Kaia (opens in a new tab) DLT Foundation (previously Klaytn Foundation)

Team

Meet our team

With an established presence in six countries and team members across about 30 more, we are a global team committed to advancing decentralised technologies for a better world.

Leadership

  • Makoto Takemiya, PhD Makoto Takemiya, PhD CEO | Co-Founder | Blockchain Engineer Before founding Soramitsu, Makoto worked as a research engineer at ATR’s Department of Neuroinformatics. He has authored over 20 peer-reviewed scientific papers and has worked on various blockchain projects. He holds a PhD from the University of Tokyo.
  • Ryu Okada Ryu Okada Co-Founder | Group Chairman Ryu Okada is a Co-founder and Chairman of Soramitsu. He worked as a Consultant at Deloitte, was a Founder of an e-commerce startup and financial consulting company, and holds a Japan CPA licence.
  • Ikkei Matsuda Ikkei Matsuda Co-Founder | SORA Director Ikkei Matsuda is the CEO of SARR, LLC, an accelerator for high-tech startups, and the former Founder and CEO of Hokkaido Venture Capital.
  • Kazumasa Miyazawa Kazumasa Miyazawa President of Soramitsu Japan Kazumasa Miyazawa is the creator of Edy electronic money and a former board member of Rakuten Edy.
  • Andrew Wong Andrew Wong Chief Operating Officer Andrew is a product-focused technology leader who has served in management roles at Liquid Group Inc, Yahoo! and 8 Securities (acquired by SoFi). He is an advisor and board member to several Silicon Valley startups.
  • Dmitriy Creed Dmitriy Creed CEO of Soramitsu Labs Head of the DevOps and Security departments for the Soramitsu Group. Professor of Practice at Innopolis University, where he earned an M.S. in SNE.
  • Tarmo Vannas Tarmo Vannas Chief Design Officer Head of Product Design and Brand Experience for the Soramitsu Group. Tarmo has over 25 years of professional experience in design and technology, including as a design and brand consultant for tech and crypto startups.

Advisors

  • Tsukasa Ojima Tsukasa Ojima Advisor Tsukasa Ojima is the former Vice President of Sanwa Bank California and a former Nomura Securities executive.
  • Masayuki Shimura Masayuki Shimura Advisor Masayuki Shimura is CEO of Shimura & Partners, a director of BASE Inc. and the former Senior Managing Director of Sumitomo Mitsui Banking Corporation.
  • Hideto Ozaki Hideto Ozaki Advisor Hideto Ozaki is an Outside Director of Sanden Holdings Corporation, Dean of the School of Lean Management at Shanghai Jiao Da Education Group and Management Advisor of Nile Corporation (China). He is the former General Manager of the Finance Division of Toyota Motor Corporation and former CEO of Toyota Financial Services Corporation.
  • Tsunekazu Haraguchi Tsunekazu Haraguchi Advisor Tsunekazu Haraguchi is an Advisor and former CEO of AEON Bank, Ltd. and former CEO of AEON Financial Service Co., Ltd. He was Director-General of the Financial Bureau of the Ministry of Finance, Director-General of the Planning and Coordination Bureau of the Financial Services Agency and Vice President of the former National Life Finance Corporation.
  • Satoshi Hirota Satoshi Hirota Advisor Satoshi Hirota is the Founding Partner at HCA Law Office.
  • Nobuo Nakamura Nobuo Nakamura Advisor

Newsroom

News

Latest news and press releases from SORAMITSU.

Contact

Ready to explore innovative solutions?

Email us at service@soramitsu.co.jp or use the form to arrange a free consultation with one of our experts.