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sFOX

Hosted Custody United States Est. 2014
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About sFOX

sFOX (est. 2014, Los Angeles) is an institutional crypto prime dealer providing best-execution trading across 30+ venues, custody, and lending services. Serves RIAs, hedge funds, family offices, and corporations with FDIC-insured USD deposits through banking partners.

sFOX Custody Overview

Custody Type
Hosted Custody
Cold Storage
95%+ cold storage
Insurance
Insurance coverage through institutional partners
Pricing
Contact for pricing
Licenses
FinCEN MSB, state money transmitter licenses
Wallet Type
Cold Storage + MPC

Custody Features

✓ Yes Qualified Custodian
✓ Yes Insurance Coverage
✓ Yes Asset Segregation
✗ No Proof of Reserves
✗ No MultiSig Support
✓ Yes API Access
✗ No Mobile App
✗ No Hardware Wallet Support
✓ Yes Institutional Services
✓ Yes Staking Services
✗ No Bitcoin Only

Security & Storage

Cold Storage95%+ cold storage
Insurance CoverageInsurance coverage through institutional partners
Qualified Custodian✓ Yes
Asset Segregation✓ Yes
Proof of Reserves✗ No
MultiSig Support✗ No

Compliance & Regulation

LicensesFinCEN MSB, state money transmitter licenses
KYC Required✓ Yes
Audit FrequencyAnnual SOC 2 audits
Regulatory ComplianceSOC 2 Type II

Services & Features

Custody ModelHosted Custody
JurisdictionUnited States
Supported AssetsBTC, ETH, SOL, 80+ digital assets
Minimum BalanceContact for requirements
Withdrawal LimitsCustom institutional limits
Fees & PricingCustom institutional pricing. Trading and custody bundled. Algorithmic execution across multiple venues.
Founded2014
Supported WalletsInstitutional custody wallets
Customer ServiceDedicated institutional support, U.S. business hours

Technical Features

✓ Yes API Access
✗ No Mobile App
✗ No Hardware Wallet
✓ Yes Institutional

Customer Reviews

★★★★★ 1/17/2026

Institutional Bitcoin custody integrated with prime brokerage services sFOX provides an institutional-grade Bitcoin custody service that is tightly integrated with its broader prime brokerage offering. The platform is clearly designed for professional and high-volume clients who require strong security controls, regulatory alignment, and efficient operational workflows. What stands out is the emphasis on governance, segregation of duties, and custody practices aligned with institutional risk management standards. The integration between custody and execution allows clients to manage assets efficiently while maintaining robust controls and oversight. While sFOX is not intended for retail users or self-custody-focused Bitcoin holders, it performs very well within its intended scope. Overall, sFOX offers a reliable and professionally managed custody solution for institutions seeking secure Bitcoin storage combined with prime brokerage infrastructure.

★★★★★ 1/17/2026

muy bueno. sFox ofrece una infraestructura sólida orientada principalmente a clientes institucionales y de alto volumen. Su acceso a múltiples fuentes de liquidez y su enfoque en la ejecución eficiente son puntos positivos, especialmente para operaciones grandes o profesionales.

★★★☆☆ 1/17/2026

Secure and Reliable Custody for My Crypto I’ve been using sFox for custody, and I’m pretty impressed. The security is top-notch with multi-sig and cold storage. The platform is user-friendly, and I feel confident my assets are safe. The fees are a bit high, but it’s worth the peace of mind.

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