Why European VCs Are Pricing Deals Blind — And What It's Costing Them

A partner at a UK Series A fund said it plainly: 'We've never killed a deal because of tech DD. That's not the point. The point is that we overpaid for three deals in the last fund because we only found out about the debt after we'd already said yes to the number.'

That quote comes from a broader research effort we recently completed — 40+ studies synthesised, 12 European VC partners and associates interviewed — looking at how deal processes in Europe actually work. The findings on technical due diligence are stark.

The numbers

50–60% of European early-stage deals proceed without any formal tech DD. At Seed and Series A, fewer than 15% of funds run a technical assessment before the LOI. Most of the remainder do it post-LOI — or not at all.

At Series B and C, things improve — 30–40% of deals include some technical assessment before terms are set. But that still means the majority of later-stage European investors are pricing deals based on what the CTO told them in a 45-minute meeting.

Compare this to the US: traditional full-scope DD takes 3–4 weeks there versus 6–8 weeks in Europe, and a significantly higher proportion of US funds have systematic technical assessment built into their pre-LOI process.

Why this matters more than it used to

The problem isn't new. Founders have always been able to present their technology more favourably than the reality warrants. What's changed is the degree to which AI makes this easier.

AI-generated code, AI-written documentation, AI-polished demos — all of it is now indistinguishable from high-quality human engineering at the surface level. A team of five engineers can build software that looks and performs like a team of fifty. The underlying architecture, security posture, and scalability constraints remain invisible until you actually look.

Fewer than 15% of VC firms have a formal AI data practices assessment framework. In 2025, 36–39% of European deal flow involves AI-first companies. The gap between what's being assessed and what needs assessing has never been wider.

The timing problem is structural

In the dominant European model, formal tech DD happens after the Letter of Intent — after price is set, the relationship established, and both parties have signalled commitment. What gets discovered post-LOI gets absorbed into the deal, not repriced into it.

This creates a fundamental asymmetry. The investor knows they overpaid. The founder knows the investor knows. The working relationship starts with that shared, unspoken understanding. It's not a great foundation.

The solution isn't more thorough post-LOI DD. It's moving the assessment earlier — to where it can actually shape the decision, not just confirm it.

What early technical assessment actually changes

Technical debt, by itself, has never stopped an investment. In 250+ assessments, we've seen it again and again: debt is almost always contextual, and smart investors know how to price it in. What kills conviction is not knowing what you're backing.

An early X-Ray — a full technical assessment run before the term sheet — doesn't just surface risk. It changes every meeting that follows. You know which questions to ask. You know where the architecture holds and where it doesn't. You know what the debt will cost to fix, in euros, not vague qualitative terms.

The funds moving fastest in competitive processes are the ones that already have this picture. They move to conviction while others are still trying to understand what they're looking at.

What it costs when you don't

The direct cost is overpayment. If you close a deal and later discover €800k of remediation work baked into the architecture, that's value transferred from you to the seller. In a fund with 20 investments, three of those going the same way is a material impact on returns.

The indirect cost is the deals you don't close. Speed of conviction is a genuine competitive advantage in European VC. The fund that can credibly say 'we've seen the tech, we're backing this at X' three weeks before their competitors get to that same conclusion wins the round.

Europe generates 17% of new global enterprise value. It captures only 10% of exit value. The gap between creation and capture is the central challenge of European venture. Getting to conviction before the term sheet is one of the few places individual funds can close it.

For investors running deals right now

X-Ray delivers a full product and tech assessment in 1 business day. 250+ automated checks across architecture, security, delivery, AI readiness, and code quality — signed off by operators who've built what they're evaluating. Two verdicts: one IC-ready summary for your deal team, one technical report for the company's CTO.

Under 30 minutes from the target. Non-intrusive. Benchmarked against 250+ European assessments. Run it before the LOI and you negotiate from knowledge, not assumption.

Sources

• Atomico, State of European Tech 2025 — European enterprise value creation vs. exit capture
• Listalpha EMEA Tech DD Report — 50–60% of early-stage deals without formal tech DD
• NVCA, 2024 — <15% of VC firms with formal AI assessment framework
• PitchBook — Tech DD timing data across deal stages
• Practitioner interviews, 12 European VC partners and associates, 2024–2025