SIX Crypto-Asset Custody review
Institutional custody pairs MPC and HSM controls with staking, reporting, and settlement.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
SIX Crypto-Asset Custody provides custody, storage, and transfers for banks and other institutional clients. SIX delivers the service through its licensed Central Securities Depository, with the platform operated in Switzerland and supervised by FINMA. It is a cloud service with web and API access, aimed at enterprises that need institutional custody and settlement rather than a retail wallet. The core offer includes crypto-asset and stablecoin support, configurable segregated or omnibus accounts and wallets, and operational management around custody activity.
Key controls and reporting shape its fit for financial institutions. MPC co-signing is combined with physical HSM key storage, while API connectivity provides on-demand holdings and transaction data. End-of-day holdings and transaction reporting is available through SWIFT MT535/MT536. SIX also supports blockchain events, cold-storage retrieval, and fee management, and provides custodial staking for Ethereum and Avalanche. These features give the service a broader operational scope than storage and transfers alone; institutions seeking staking for other assets should look elsewhere.
The trading and settlement connection is another differentiator for institutional workflows: SIX works with RULEMATCH on crypto collateral, settlement, and trading integration. SWIFT reporting and RULEMATCH are the named integrations, making the offer most relevant to organizations whose processes already align with those systems. According to SIX's fee information, charges depend on client segment, onboarding requirements, assets under custody, nodes, and services, with final fees set in each client's contractual annex. Buyers should expect a sales-led pricing discussion rather than a standard plan. Choose SIX for managed custody with institutional reporting and settlement needs; it is less suitable for buyers seeking public self-service pricing or a retail-oriented product.
SIX Crypto-Asset Custody pros and cons
- Where it wins
- MPC co-signing combines with physical HSM key storage.
- Offers custodial staking for Ethereum and Avalanche.
- RULEMATCH integration links custody with crypto trading and settlement.
- Where it doesn't
- Pricing is set in each client's contractual annex.
- Designed for banks and other institutional clients, not general retail use.
- Custodial staking is limited to Ethereum and Avalanche.
SIX Crypto-Asset Custody fact sheet, pricing and score →
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