Komainu is the institutional digital-asset custodian originally established as a joint venture between Nomura (the Japanese investment bank), Ledger (the French hardware-wallet and enterprise-custody-stack vendor), and CoinShares (the European digital-asset asset manager), structured to combine institutional banking discipline with hardware-wallet root-of-trust engineering. The custody franchise operates from Jersey, the United Kingdom, Singapore, and Dubai, providing institutional-grade cryptoasset custody to asset managers, hedge funds, and increasingly tokenisation-issuance and exchange counterparties. For an institutional tokenisation operator in APAC, Komainu is the most-cited example of an institutional digital-asset custodian whose origin combines a major Asian investment bank's institutional posture with a hardware-wallet-rooted custody stack, and the natural counterparty for institutional flow that prioritises hardware-rooted private-key infrastructure under a regulated custody wrapper. Recent ownership and strategic-investor changes have been reported in trade press; current shareholder structure should be verified against Komainu's current corporate disclosures rather than inferred from earlier JV-formation coverage.
What it is
Komainu was launched in 2020 as a Nomura, Ledger, and CoinShares joint venture, with the original positioning anchored on combining Nomura's institutional client access and operational discipline, Ledger's hardware-secure-element and enterprise-custody-stack engineering, and CoinShares' digital-asset asset-management perspective. The custody franchise was structured to operate as a regulated entity in Jersey, with subsequent expansion into the United Kingdom, Singapore, and Dubai (United Arab Emirates) under jurisdiction-specific licensing.
The current product surface covers institutional-grade custody of major cryptoassets, USD stablecoins, and (with growing emphasis) tokenised securities and tokenised-fund interests. Komainu has also been positioned for collateral-style use cases (collateral mobilisation, post-trade settlement) where institutional clients need bank-grade operational discipline applied to digital-asset positions.
The shareholder and strategic-investor picture has been the subject of trade-press reporting in 2024-2025, including reports of new strategic-investor participation and adjustments to the JV structure. The current shareholder roster should be checked against Komainu's current corporate disclosures rather than inferred from earlier coverage.
Programme participation and tokenisation footprint
Komainu's named tokenisation footprint sits in the institutional custody layer beneath tokenised-asset issuance and trading flows. The custody franchise has been positioned for institutional clients holding tokenised securities, tokenised-fund interests, and digital-asset positions that need regulated custody and operational discipline. The named partnership map on the tokenisation side spans asset managers, exchanges, and tokenisation platforms, although the consolidated mandate map by issuer and product is not consistently disclosed.
The competitive frame is partly Anchorage Digital (the federally-chartered US trust), partly Zodia Custody (the SC Ventures-incubated UK FCA-registered custodian), partly the non-bank institutional custody specialists (Fireblocks, BitGo, Coinbase Custody Trust), and partly the bank-internal digital-asset desks at GSIBs (BNY Digital Asset Custody, State Street Digital). Komainu's positioning is structurally distinct on the hardware-wallet-rooted custody-stack origin, the multi-jurisdictional licence map across Jersey, UK, Singapore, and Dubai, and the institutional counterparty profile inherited from the Nomura-led JV formation.
Regulatory positioning
The regulated perimeter is anchored on Jersey as the original incorporation jurisdiction, with subsequent expansion into the United Kingdom (under FCA-administered cryptoasset registration), Singapore (under MAS perimeter for digital-asset custody), and Dubai (under the Virtual Assets Regulatory Authority, VARA, perimeter). The cross-jurisdictional licence map is structurally important for institutional clients running multi-jurisdiction tokenised-asset distribution: Komainu can hold custody of an institutional client's positions under a regulatory wrapper appropriate to the client's domicile and the underlying asset's issuance jurisdiction.
The Singapore presence positions Komainu inside the MAS-supervised perimeter that covers the SCS framework and the broader Singapore institutional digital-asset perimeter. The Dubai presence positions Komainu inside the VARA perimeter, which is structurally distinct from the older Abu Dhabi Global Market (ADGM) FSRA perimeter that several other digital-asset custodians have used for UAE operations.
Open questions
- Current shareholder roster and the relative stakes of Nomura, Ledger, CoinShares, and any later strategic investors. The 2024-2025 trade-press reporting referenced changes to the JV structure; the current ultimate-beneficial-owner picture should be verified against Komainu's current corporate disclosures.
- The consolidated mandate map for Komainu as institutional custodian on tokenised-securities and tokenised-fund issuance pipelines.
- Asset-under-custody figures. Komainu has not historically published comparable AUC disclosures against federally-chartered US trusts or the larger non-bank custodians.
- Cross-product integration with Nomura's institutional banking and securities franchise (prime brokerage, securities lending, FX) for institutional clients holding both Komainu-custodied digital-asset positions and Nomura banking-side relationships, particularly in light of any post-formation changes to the JV structure.
- Whether the Singapore and Dubai entities have expanded their licensed perimeter to cover tokenised-securities custody (as distinct from cryptoasset custody) under jurisdiction-specific frameworks.
- Agentic commerce posture. Komainu has not publicly addressed AI-agent-controlled wallet arrangements under its regulated custody wrapper.