sFOX
Qualified Custodian
Established Est. 2014
United States
21Rates Quality Score: 65.0/10
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.
Custody Model
ModelHosted Custody
LicensesFinCEN MSB, state money transmitter licenses
RegulatoryFinCEN BSA/AML, state money transmission laws
JurisdictionUnited States (FinCEN MSB)
Fees & Minimums
Fee StructureCustom institutional pricing. Trading and custody bundled. Algorithmic execution across multiple venues. Contact for quotes.
Min BalanceContact for requirements
WithdrawalsCustom institutional limits
Security
Cold Storage95%+ cold storage
InsuranceInsurance coverage through institutional partners
Proof of Reservesfalse
Asset SegregationYes
AuditsAnnual SOC 2 audits
Features
API Access Available
Mobile App No
Hardware Wallet Not supported
Institutional Available
Integrated Trading Yes
AssetsBTC, ETH, SOL, 80+ digital assets
Frequently Asked Questions About sFOX
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: July 2026