Fireblocks vs Prometheum Capital

Fireblocks4.3/5

VS

Prometheum Capital2.8/5

Feature	FireblocksVisit	Prometheum CapitalVisit
Ratings
Our score	4.3/5	2.8/5
User rating	No reviews yet	No reviews yet
Security	4.0	2.5
Compliance	4.0	3.5
Asset support	5.0	1.5
Features	4.5	3.5
Support	4.0	3.0
Specs
KYC required	Not disclosed	Yes
Custody model	Qualified custodian, MPC, HSM, Self-custody software	Qualified custodian
Clients	Institutions, Funds, Corporates	Not disclosed
Regulated	Yes	Yes
SOC 2 report	Yes	Not disclosed
Staking	Yes	Not disclosed
API access	Yes	Not disclosed
Licenses & charters	NYDFS limited purpose trust charter (US), FinCEN MSB registration (US), State money transmitter licenses in 37 states and DC (US)	SEC/FINRA special purpose broker-dealer (US), SEC/FINRA broker-dealer operating an ATS (US), SEC/FINRA issuance broker-dealer (US), SEC transfer agent registration (US)
MPC	Yes	Not disclosed
Cold storage	Yes	Not disclosed
Qualified custodian	Yes	Yes
Company
Founded	—	2017
Headquarters	United States	United States
Investors	D1 Capital Partners, Spark Capital	Not disclosed
Strengths and weaknesses
Pros	Qualified custody through NYDFS-chartered Fireblocks Trust alongside self-custody software Thousands of assets across more than 200 blockchains SOC 2 Type 2 with zero material findings, plus ISO 27001 and CCSS QSP Level 3 Air-gapped MPC cold wallet and an HSM option (KeyLink) for banks	Crypto custody inside an SEC-registered, FINRA member broker-dealer under Rule 15c3-3 Correspondent clearing lets broker-dealers hold ETH in ordinary brokerage accounts Group includes an issuance broker-dealer, an ATS and an SEC-registered transfer agent No BrokerCheck disclosures for Prometheum Capital or Prometheum ATS
Cons	Key-loss claims from StakeHound and the Celsius plan administrator Licenses are US-only, with no MiCA or other non-US authorization listed Custom plans start at $36,000 a year	Narrow crypto coverage, with ETH the only token named in 2026 releases Assets are not SIPC or FDIC insured, per company disclosures Custody technology is described only in general terms A 2023 congressional letter questioned past ties to Wanxiang and HashKey
Best for	Exchanges and payment companies building in-house custody, Funds and RIAs that need a New York qualified custodian, Fintechs launching embedded or white-label wallets	US introducing broker-dealers adding crypto to client brokerage accounts, Self-clearing broker-dealers that want omnibus crypto custody, Issuers planning tokenized funds or equities in the US

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