The Trusted Custodian

Built by institutions, for institutions. Your gateway to the digital asset ecosystem.

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The trusted institutional partner for digital asset services. Built on an infrastructure of expertise, Komainu was launched in 2018 as a joint venture between Japanese bank Nomura, crypto security experts Ledger, and digital asset investment manager CoinShares.
  • Secure Custody

  • Staking

  • Collateral Management


Trusted custody services for digital assets


Komainu offers clients a regulated digital asset custody solution that is secure, segregated, and verifiable on the blockchain. Our services are specifically designed to meet the unique requirements of institutional clients.

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Komainu Connect

Reduce counterparty risk by removing the need to store your assets with a third party trading venue or lending platform. Via our partners, trade, borrow or lend with assets held in custody.

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Unlock the full potential of your digital assets. Participate in blockchain rewards whilst assets remain in custody with Komainu, under a secure infrastructure and governance layer.

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Your trusted partner

Our institutional-grade services are designed to help you navigate the complexities of the digital asset ecosystem with confidence, providing a secure gateway to the market. We offer the highest level of security and regulatory compliance, ensuring that your assets are always protected.

At Komainu, assets are fully segregated on-chain to create an insolvency-remote trust structure.

This means:

- We segregate our assets from client assets

- We segregate client assets from other clients’ assets

- We keep client assets off-balance sheet

- We don’t re-hypothecate or have any discretion to “manage” client assets

- We have clearly set this out in our custody agreement and modelled our operational practices around this


The secure, regulated solution for your digital asset custody needs



Komainu is regulated by the Jersey Financial Services Commission (JFSC), the Dubai Virtual Assets Regulatory Authority (VARA), and holds an MLR registration with the UK Financial Conduct Authority (FCA) and an OAM registration in Italy. This ensures that we adhere to the highest standards of compliance and customer protection. Our regulatory oversight provides confidence and assurance that your assets are being managed in a secure and compliant manner.


Discover our institutional-grade technology, featuring Hardware Security Module (HSM) Vaults and Multi-Party Computation (MPC) wallets, protecting your assets from cyber threats and human error risk. We employ a resilient end-to-end security design based on a zero-trust model. Our measures include 24/7 network monitoring, segregated networks, regular external penetration tests, and compliance with SOC 2 Type I, SOC 1 Type II, ISO27001 and ISO27701 standards.


We are committed to delivering excellent and client-specific service, tailored to your specific requirements. With a focus on flexibility and customisation, we offer a modular solution, built upon operational best practices derived from years of experience in traditional financial markets. This allows us to provide top-tier custody and management services for a diverse range of digital assets.

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