Opio raises €4M to automate the grunt work of financial due diligence

Opio has raised €4 million from Frst, Seedcamp and GFC to push its AI software deeper into financial due diligence, the kind of work auditors do before an acquisition. The Paris startup says its system collects, checks and organises account data so transaction services teams can spend less time on the grind and more time on the actual judgement call.

That grind is real. Opio says the work usually takes several weeks and is still mostly manual. Its pitch is simple enough: let junior professionals stop babysitting spreadsheets and start doing the part of the job that needs a human brain. The company says that automation saves teams 27 per cent of their time.

The founders come from two very different worlds. Tristan Fulchiron previously led engineering organisations for the French state, including at the Ministry of Defence, and later worked as digital adviser to the Minister of the Interior. Olivier Chancé built engineering and data teams at startups and scaleups in Brazil and France, including as a founding engineer. Opio was founded in Paris in 2025.

The startup has already landed Forvis Mazars Group and BDO, plus other firms it did not name. Transaction Services teams in 15 countries are using the product. Its angel backers include Arthur Waller of Pennylane, Stanislas Polu of Dust, and former people from HSBC, Deutsche Bank and KKR investing personally.

There is a bigger bet underneath the due diligence sales pitch. Opio says 15 per cent of its revenue already comes from outside France, and it wants that to hit 50 per cent within a year, with France, the UK and Germany as the main targets. A second product is planned for early 2027, and the company is already working with statutory auditors on certification work.