By Hamza Faisal
New York-based Stuut has raised $52.5 million in Series B funding to put its AI agents to work on one of business's least glamorous but most expensive problems: getting paid.
The round, announced on October 7, was led by Insight Partners, with participation from Andreessen Horowitz, Activant, and M12, Microsoft's venture fund.
The raise brings Stuut's total funding to $93 million, just ten months after its $29.5 million Series A, which Andreessen Horowitz led in November 2025.
That makes the Series B roughly 1.8 times the size of the prior round, and one report says it closed in only 24 hours.
Stuut builds AI agents that run the entire order-to-cash process for large enterprises: collections, cash application, payments, disputes, and deductions, alongside order management and credit.
Rather than simply organizing work for finance staff, the agents follow invoice problems across customer communications, payment portals, and finance systems on their own.
The $16 trillion sitting on the books
Stuut's pitch rests on a large number: the company estimates businesses worldwide have $16 trillion locked up in unpaid receivables.
The figure has grounding — the Federal Reserve reports that US businesses alone were owed $7.48 trillion in trade receivables at the end of the first quarter of 2026, and the J.P. Morgan Working Capital Index put trapped liquidity at S&P 1500 companies at $707 billion in 2024.
Most of the time, customers want to pay, the company says — but a missing purchase order, bad order data, or an invoice sent to the wrong person triggers weeks of emails, portal work, and internal chasing.
At enterprise scale, Stuut argues, collecting money becomes millions of tiny investigations consuming thousands of hours. The company says broken order-to-cash processes can wipe out as much as 5% of a company's revenue, amounting to roughly $1 trillion a year across the Fortune 500.
Microsoft deepens its bet
M12's participation is part of an expanded relationship with Microsoft. Alongside the investment, Stuut is now available through the Microsoft Marketplace and has been accepted into the invite-only Microsoft for Startups Pegasus Program — a channel that puts the startup in front of enterprise buyers already inside the Microsoft ecosystem.
Stuut says more than 150 customers use the platform and that over $3 billion has moved through it so far. Its customers, it reports, are freeing up to 40% more cash flow and cutting days sales outstanding by 47% — figures the announcement notes are company-reported.
"Most businesses don't have the bandwidth to segment their base or give customers the level of service they deserve," said Stuut CEO Tarek Alaruri.
"By leveraging AI, we're able to deliver the only solution with continuous learning loops to improve the customer experience, reduce churn, improve NPS, and deliver better financial performance."
Why finance software is getting agents
The round fits a wider pattern: investors keep writing large checks for AI systems aimed at real economic activity rather than demos. Finance teams are thinning even as workloads grow — Stuut says more than 300,000 accountants have left the profession since 2019 — and the startup's bet is that the answer is agents that chase the money instead of staff chasing invoices.
Stuut was founded by Adam Chaarwari, Tarek Alaruri, and Ben Winter. With fresh capital and Microsoft's distribution behind it, the company now has to prove its headline metrics hold up beyond its earliest customers.
By Hamza Faisal
