Castle Raises $1M To Bring Automated Bitcoin Treasury To Small & Medium-Sized Businesses

▤ Summary

Castle raised $1 million in an oversubscribed pre-seed round led by Boost VC with participation from Winklevoss Capital, Park Rangers Capital, Epoch VC, and angel investors. The company builds an automated bitcoin treasury platform for small and medium-sized businesses. Its product integrates with tools like QuickBooks, PayPal, Square, and Stripe to automatically convert portions of revenue into bitcoin and manage treasury exposure. Castle says it wants to help businesses protect cash from inflation while keeping the system largely invisible to operators. The round will fund rollout and expansion of the platform across U.S. businesses.

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