United States (US)
Money services businesses including virtual currency exchangers and administrators must register with FinCEN under the Bank Secrecy Act; the MSB Registrant Search allows lookup of registered MSBs by business type.
Search FinCEN MSB RegisterCrypto platforms dealing in securities must register as broker-dealers or national securities exchanges with the SEC; EDGAR and the SEC's EDGAR system list registered entities, with enforcement actions also published.
SEC EDGAR β Crypto RegistrantsEntities offering crypto derivatives, futures, or swaps must register with the CFTC as designated contract markets, derivatives clearing organisations, or swap dealers; the CFTC maintains public registrant lists.
CFTC Registrant Lists