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Peter Weisz
Peter Weisz

Posted on • Originally published at unbiasedventures.ch

What VC Due Diligence Data Actually Reveals (And What It Doesn't)

There's a romantic idea in venture capital that perfect founder data exists. That if you just gather enough LinkedIn history, GitHub commits, keystroke patterns, and psychometric assessments, you can predict founder success with near-certainty.

This idea is wrong.

I've evaluated hundreds of founders across psychometric profiles, behavioral datasets, and pitch deck analytics. Here's what actually correlates with success—and what doesn't.

What the Data Reveals

Founder-team alignment on values. This is visible in how co-founders discuss strategy, how they allocate credit in wins, and how they frame external pressure. Not deterministic, but a consistent signal.

Execution discipline. This shows up in the details: Are financial projections internally consistent? Do GTM claims match the team's stated resources? Have they shipped incrementally or all-or-nothing? Data-driven founders leave traces.

Psychological resilience under uncertainty. Not "Is the founder optimistic?" but "How do they respond to contradictory data?" Do they defend ideas until the evidence shifts, or do they collapse at the first challenge? One indicates principle, the other indicates fragility.

What the Data Misses

Founder obsession. The best startup founders have an unreasonable attachment to their problem space. You can't measure this from a spreadsheet. It requires conversation and pattern-matching across their entire history. An investor's intuition still wins here.

Market timing. A founder who is brilliant at execution but enters a market 18 months too early will fail. No psychometric assessment captures market cycle timing. This remains a judgment call.

Scrappiness under resource constraints. Some founders think at scale and need capital. Others thrive with constraints and find creative workarounds. Neither is wrong; both are right for different market conditions. Data alone can't predict which founder thrives in which environment.

Luck. A competitor fails, a key customer pivots toward you, a new technology enables your product to work in a way you didn't anticipate. Founders who succeed recognize patterns others miss and capitalize on accident. You can't screen for this.

The Real Value of Data

Due diligence data doesn't predict success. It de-risks assessment.

It filters out founders who show patterns of misrepresentation, who lack basic execution discipline, or who have a track record of harming teams. It surfaces areas where a deeper conversation is needed. It speeds up the no's.

But the final decision—whether a founder has the combination of vision, desperation, and adaptability to build something meaningful—remains human judgment.

The best due diligence combines structured data with unstructured judgment. Neither alone is sufficient.


What's your experience? What founder signals have surprised you most in hindsight?

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