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Last verified Jul 04, 2026
▣About Castle
Castle provides bitcoin-focused banking and treasury tools for businesses, helping customers reduce fees and accumulate bitcoin.
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Company Details
Websitesavewithcastle.com ↗
LinkedInView profile ↗
Year formedEst. 2021
Founded inRemote
Bitcoin onlyYes
Data Provenance
✓Facts verified by 21Rates research · Jul 04, 2026
✓1 sources cited on this page
21rates.com/companies/castle · structured data: Organization · Person ×2
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