Clear Street Closes $270M Additional Series B at $2B Valuation

Clear Street closed the second tranche of its Series B funding, raising an additional $270 million led by Prysm Capital and bringing total Series B proceeds to $435 million at a $2 billion valuation. The company builds cloud-native infrastructure for capital markets, offering prime brokerage and clearing services that compete with traditional bank-provided offerings. Clear Street's platform is designed to modernize the plumbing of capital markets by replacing legacy technology with purpose-built infrastructure.

The substantial round underscores investor confidence in fintech infrastructure that disrupts services historically dominated by large banks. The funding will support product expansion and scaling of its prime brokerage platform. Clear Street's model represents a form of embedded financial infrastructure, providing institutional-grade services through modern technology stacks.