Komainu
Qualified Custodian
Established Est. 2018
Jersey
21Rates Quality Score: 7.5/10
Komainu is a regulated institutional digital asset custodian backed by Nomura Holdings, CoinShares, and Ledger. Licensed in Jersey and Dubai (VARA), Komainu provides enterprise-grade custody combining Ledger's hardware security module (HSM) technology with institutional-grade governance and compliance frameworks. The platform serves sovereign wealth funds, asset managers, banks, and corporations that require segregated custody with multi-authorization workflows, real-time portfolio monitoring, and regulatory reporting. Komainu's unique tri-party governance model ensures no single entity controls client assets.
Custody Model
ModelHosted Custody
LicensesJFSC (Jersey) regulated, VARA (Dubai) regulated
RegulatoryJFSC regulations, VARA compliance, AML/KYC
JurisdictionJersey (JFSC-regulated), Dubai (VARA)
Fees & Minimums
Fee StructureCustom institutional pricing for regulated custody. Backed by Nomura, CoinShares, and Ledger. Minimum $10M AUM.
Min Balance$10,000,000
WithdrawalsCustom institutional governance
Security
Cold Storage100% cold storage
InsuranceComprehensive institutional insurance
Proof of Reserves No
Asset SegregationYes
AuditsAnnual SOC 2 and regulatory audits
Features
API Access Available
Mobile App No
Hardware Wallet Not supported
Institutional Available
Integrated Trading Yes
AssetsBTC, ETH, SOL, XRP, 40+ institutional-grade assets
Frequently Asked Questions About Komainu
Komainu is a qualified custodian, meaning it is a regulated financial institution authorised to hold client assets. This is important for institutional investors who are legally required to use a qualified custodian under regulations such as the SEC Custody Rule.
Komainu carries the following insurance coverage: Comprehensive institutional insurance. Always confirm specific coverage terms, limits, and exclusions directly with Komainu before depositing assets.
Komainu stores 100% cold storage of assets in cold storage (offline). Cold storage protects against remote hacking by keeping private keys disconnected from the internet.
Komainu's fee structure: Custom institutional pricing for regulated custody. Backed by Nomura, CoinShares, and Ledger. Minimum $10M AUM.. Custody fees are typically charged as an annual basis-point fee on assets under custody or a flat monthly fee.
The minimum balance requirement at Komainu is $10,000,000. This may vary based on account type and service tier.
About this analysis
21Rates Editorial TeamBitcoin Financial Research Analysts
Our research team analyses Bitcoin custody providers using proprietary quality scoring, regulatory research, and user reviews. We independently verify custody terms and maintain up-to-date information to help you make informed decisions.
Last verified: August 2026