Kraken is a cryptocurrency exchange and trading platform operated by Payward, Inc. Retail and institutional clients buy, sell and hold crypto-assets there and use related services such as portfolio management and OTC trading. The service is delivered as a website and app and is hosted entirely by Kraken itself; there is no self-hosted variant.
Payward, Inc. is a US company headquartered in Cheyenne, Wyoming. For clients in the European Economic Area, Kraken contracts through European entities: Payward Europe Solutions Limited in Ireland is authorised by the Central Bank of Ireland as a crypto-asset service provider under MiCA, Payward Ireland Limited is an authorised electronic money institution, and Payward Europe Digital Solutions (CY) Limited in Cyprus provides investment services. In its privacy hub Kraken states that it complies with the GDPR and says data may be processed in countries including the United States, the United Kingdom and Ireland, using standard contractual clauses for transfers. For a European organisation this means a European regulated entity for the service, but a US parent company.