Stuut Raises $52.5M From Insight Partners and a16z to Unlock $16 Trillion in Unpaid Invoices

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Stuut raised a $52.5M Series B led by Insight Partners to let AI run order-to-cash, after customers cut DSO by 47% and freed up to 40% more cash.
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Stuut has raised a $52.5 million Series B led by Insight Partners, with Andreessen Horowitz, M12 (Microsoft's venture fund) and Activant taking part, bringing total funding to $93 million. The round lands about ten months after a $29.5 million Series A led by Andreessen Horowitz in November 2025. Stuut runs order management, credit, collections, cash application, payments, disputes and deductions end to end, with customers reporting up to 40% more cash flow and a 47% cut in DSO. Stuut says 81.7% of outbound collections activity runs without a person and 95% of incoming payments are matched automatically. More than 150 customers use the platform, the customer base has grown fivefold in a year and more than $3 billion has moved through it, up from $2 billion in August. US businesses hold about $7.5 trillion in trade receivables according to Federal Reserve data, while Stuut puts unpaid receivables worldwide at $16 trillion.