Key Takeaways
- Iron Key evaluates founders on operational track record - past execution beats present pitch.
- The four questions: Who are your first 1,000 customers? What is your unreplicable distribution? Do the unit economics scale? Are you building to be acquired?
- Conviction investing means concentrated bets on ideas most believe are wrong or early - not diversified portfolios of inoffensive bets.
Most investment frameworks are reverse-engineered from outcomes. Someone backed a winner, retrofitted a thesis, and published it as if they knew all along. At Iron Key Capital, we try to do something more honest: write down what we actually believe before we see the deck.
This is our framework. Not the marketing version. The version we use when a founder is sitting across from us and we have to make a decision.
"The best deals we've passed on taught us more than the ones we've done."
Filter One: Is the Founder Building a Business or a Story?
The first thing we look for is whether a founder can answer hard operational questions without pivoting to vision. Vision matters. But founders who lead with vision and struggle with specifics are usually building presentations, not companies.
What we ask: What is your CAC? What is your payback period? What does your team's first week look like after this capital hits? If the answers are rough but honest, that's fine. If the answers are polished but evasive, that's a red flag we take seriously.
Filter Two: Does the Market Pull or Do They Have to Push?
We are not market-size investors. We don't start with "is this a $10B market." We start with: is there evidence that customers want this without being sold to?
The companies we've backed at Iron Key have almost all had one thing in common: the founder was overwhelmed by inbound before they had a proper sales process. That's not a coincidence. It's a signal. When a market pulls, capital is an accelerant. When a market has to be pushed, capital is a lifeline, and that's a different kind of investment.
Filter Three: What Does the Cap Table Say About the Last Round?
Cap tables are documents of decisions. When we look at how a company raised its last round, and who they let in at what terms, we learn a lot about how the founders make decisions under pressure.
Highly dilutive early rounds, convertible notes with punishing caps, strategic investors who bring no operational value - these are all signals that we weight heavily. Not as disqualifiers, but as data.
Filter Four: The Counterfactual Test
We ask one question that founders often find uncomfortable: if Iron Key doesn't invest, what happens?
If the honest answer is "we find another investor," that's fine and we expect it. But if the answer involves a company that cannot survive without this specific check from this specific source, we get cautious. Desperation-adjacent deals tend to produce desperate decisions downstream.
The best deals we do are the ones where the founder had other options and chose us because of what we bring beyond capital: the network, the operational support, the ecosystem access. Those deals tend to go better. Almost without exception.
What We Don't Filter On
We do not filter on sector. We do not filter on founder age, background, or pedigree. We have backed founders from Queens, founders who dropped out, founders who failed before. The framework above is sector-agnostic and background-agnostic by design.
What we do filter on, consistently, is quality of judgment. Can this founder tell the difference between a signal and noise? Can they make decisions with incomplete information? Can they hold the team together when things go sideways?
Those are the founders who build companies worth backing. Everything else is context.