Coupa, the spend management software company, said on May 12, 2026 that it had acquired Rossum, a Czech startup that uses AI to read and process invoices and other business documents. Coupa announced the deal at its Inspire conference in Las Vegas.
Financial terms were not disclosed. Guggenheim Securities was Rossum's exclusive financial adviser and Orrick, Herrington & Sutcliffe its legal counsel. Kirkland & Ellis advised Coupa, with Wolf Theiss handling Czech law matters, including legal due diligence on Rossum's business in the Czech Republic.
The two companies had worked together since 2024, when Rossum's technology was built into Coupa's accounts payable product to process complex invoices. Coupa said it would now extend Rossum's technology across its full platform. Industry analyst firm Deep Analysis said Coupa would keep the Rossum brand for now, and CzechCrunch reported that all three founders would stay with the business.
What Rossum built
Tomáš Gogár, now chief executive, Petr Baudiš, now chief technology officer, and Tomáš Tunys left doctoral studies in AI at the Faculty of Electrical Engineering of the Czech Technical University in Prague to start Rossum. Deep Analysis dates the founding to 2017, while CzechCrunch puts it in 2016. The company employs about 150 people, most of them in the Czech Republic. It started with a cloud service that pulled data out of invoices and grew into a broader intelligent document processing platform.
In 2024 it launched what it calls a transactional large language model, or T-LLM, a model trained specifically on business documents such as invoices and supply chain paperwork rather than general text. Coupa said the model was trained on tens of millions of documents and keeps learning from each customer's own files. Rossum added AI agents for document processing in 2025.
Rossum describes itself as a platform for automating supply chain paperwork for both goods and services. Deep Analysis said it had thousands of customers worldwide.
“Joining Coupa is the natural evolution of a years-long partnership built on a shared AI-first culture.”
Why Coupa is buying
Coupa runs software for purchasing, invoicing and payments, and says its network connects more than 10 million buyers and suppliers and has built up a $10 trillion dataset of transactions. It plans to combine Rossum's model with Navi, its set of AI agents, so that customers can automate document handling across direct and indirect spending, not only in accounts payable.
Coupa chief executive Leagh Turner said the partnership had already shown its value in invoicing and that the company saw more value in applying Rossum's model across the platform. She said Coupa had delivered more than $300 billion in customer savings over its 20 years and believed that with Rossum it could help customers save another $300 billion within five.
Coupa has offered its own invoice processing since 2017, according to Deep Analysis, and had added machine learning to it before turning to Rossum as a partner.
The founders and the funding
Rossum got early backing in 2017 from Prague accelerator StartupYard and Czech investment group Miton. In 2019 it raised about CZK 80 million (roughly $3.5 million), when London funds LocalGlobe and Seedcamp joined Czech investors.
In October 2021 it raised a $100 million Series A led by General Catalyst, with LocalGlobe, Seedcamp, Miton and investor Elad Gil also taking part. Radio Prague International reported that it was the third-largest investment ever made in a Czech startup, and CzechCrunch said it was the largest Series A in central and eastern Europe at the time. No later round was announced. Miton told CzechCrunch that Rossum had drawn down only about half of the money it raised, and key employees hold stock options that pay out in the sale.
Gogár said joining Coupa was the natural next step after years of partnership, and that pairing Rossum's model with Coupa's data put the combined business in a position to deliver value to customers quickly.
What the price might be
Neither side disclosed what Coupa paid. Deep Analysis estimated Rossum's 2025 revenue at $35 million to $40 million and suggested an enterprise value of roughly $160 million to $300 million at typical software multiples, or possibly more than $500 million if buyers valued it as an AI company. CzechCrunch put the price in the single-digit billions of Czech koruna. Those figures are estimates, not reported numbers, and the companies did not say whether Coupa paid in cash, shares or both.
Coupa, which private equity firm Thoma Bravo took private for $8 billion in 2023 after seven years on Nasdaq, said it would show the combined product at Inspire and hold a webinar on it on June 9.
