Plinto Raises €2.9M for AI agents that audit invoices

Copenhagen startup Plinto has raised €2.9 million in pre-seed funding to scale AI agents that audit invoices — software that continuously compares payments against contracts, budgets and internal policies, then chases down the problems it finds before money changes hands twice. The round was led by People Ventures and Emblem, with participation from business angels, and was reported by Tech Funding News on October 20.

Plinto’s AI agents that audit invoices connect to the systems finance teams already run on — accounting software, document repositories, banking tools and chat platforms such as Slack and Microsoft Teams — and review transactions continuously instead of in monthly batches. When something looks off, the agents investigate, gather supporting evidence and follow up with the right people: contacting suppliers about incorrect invoices, requesting credit notes or preparing corrections for a human to approve, according to tech.eu.

From dashboards to deviation hunters

The company was founded in early 2025 by Jakob Nielsen, Nermina Suljevic and Sebastian Rehnby, with Andreas Garnæs as chief technology officer. All four previously worked at Peakon, the Copenhagen employee-feedback company that Workday acquired for about $700 million in 2021. Nielsen, an economics graduate, entered financial controlling almost by accident after former classmates described the difficulty of closing the books.

Plinto’s first product was a conventional business-intelligence dashboard. The pivot came after a chief financial officer questioned whether the data behind the dashboard could be trusted — and as AI capabilities advanced in late 2024, the team automated the complex data checks that had previously required extensive manual work. Nielsen spent much of the company’s first year providing on-site support to finance teams and CFOs at a pilot customer, learning where the real verification gaps were.

Nielsen explained that companies already record every transaction in software, but checking whether those transactions match agreements and rules remains largely manual. The company’s answer is AI agents that audit invoices and payments: software that finds deviations, investigates them and takes action so errors actually get fixed. It is deliberately not an accounts-payable tool, Nielsen added, but background infrastructure — the agents contact the right people for each payment, so staff do not need to adopt another tool.

Agents that prompt, draft and act

Plinto divides work among specialised AI agents that audit invoices, orders and payments against contract terms, budgets and policies in real time. The company says it monitors agent performance continuously and can assign more than one agent to the same problem when a case is difficult. Human supervision remains central to the design: depending on the customer’s preference, an agent can prompt a user, suggest an action or draft a message to a vendor, keeping a person in control of what the AI does.

Early deployments suggest these AI agents that audit invoices are finding more than most finance teams suspect. At one customer, Plinto’s agents flagged roughly 430 discrepancies per month in a single business area. At another, the platform detected a duplicate invoice submitted under a slightly different supplier name within a minute of its arrival, before it could be paid twice, Vestbee reports. The company now has paying customers and pilot projects across logistics, real estate, facility services and food production.

Suljevic noted that many of Plinto’s customers operate on thin margins, so even small errors add up quickly — and they are typically discovered only after the money has already been paid. The pitch is that AI agents that audit invoices catch and fix errors before they reach the bottom line. Plinto currently employs eight people, four of them in management, and plans to use the fresh capital mainly for recruiting as it prepares for its next funding round.

A crowded race into the books

Suljevic said the company has not encountered a direct competitor in financial controlling, though nearby territory is filling fast. Finto, a Munich startup, raised $3.4 million in July 2026 for agents that match invoices to purchase orders and handle mismatches. In August 2026, the founders of Lunar raised €8.2 million for Repodo, an AI audit company — though Repodo focuses on audits after the fact, while Plinto targets pre-audit controls. Accounts-payable tools, ERPs and general AI models all overlap at the edges.

Copenhagen is quietly becoming a centre for this category. Recent Nordic rounds include Spektr’s $20 million Series A, Complir’s €1.7 million pre-seed and PSV Tech’s €56 million second fund for pre-seed startups. The broader market is large: the AI market in accounting is projected to reach $88.1 billion by 2034, according to research cited by Tech Funding News. Plinto plans to use the round to accelerate product development, sign more enterprise customers and take its first steps outside Denmark, according to The SaaS News.

The key question for this round is whether Plinto — and the broader category of AI agents that audit invoices — can convert pilot projects into repeat contracts before larger competitors reach the same customers. That conversion is the classic pre-seed test. The story also lands inside a fast-moving agent-finance beat: while major banks are barring outside AI agents from moving customer money, companies are simultaneously inviting agents deeper into their own ledgers, and a parallel wave of tooling is emerging to track what those agents cost and whether they follow the rules — as seen in recent agent cost-and-governance launches. Plinto’s bet is that finance teams will hand the tedious verification work to AI agents that audit invoices — and keep the final call for themselves.