What a VC Case Interview Is Really Testing
A VC case interview usually hands you a company — a pitch deck, a short description or just a name — and asks whether you would invest. The interviewer is not looking for the right answer. They are looking for structured judgment: do you know which questions matter, can you read a few numbers quickly and will you commit to a view?
The same skill applies to new angel investors. The framework below works for both.
A Five-Part Framework for Evaluating a Startup
• 1. Market. How big is the problem, who has it and is the market growing? A quick TAM–SAM–SOM estimate shows you can size it without hand-waving.
• 2. Team. Why are these founders the right people for this problem? Look for founder-market fit, not just impressive CVs.
• 3. Product and traction. Is there evidence that customers want it — retention, revenue growth, usage — or only sign-ups?
• 4. Economics. What do gross margin, burn and runway look like? Can the company reach the next milestone with the money it is raising?
• 5. Deal and returns. Given the valuation, could this company plausibly return the fund? VC returns follow a power law, so each investment needs a credible path to a very large outcome.
Finish with a clear recommendation and the one or two risks that would change your mind.
| Question | Evidence to look for | |
|---|---|---|
| Market | Is the problem big and growing? | TAM–SAM–SOM, market trend |
| Team | Why these founders? | Founder-market fit, past execution |
| Traction | Do customers want it? | Retention, MRR growth, usage |
| Economics | Can it reach the next milestone? | Gross margin, burn, runway |
| Deal | Can it return the fund? | Valuation vs realistic exit size |
The Numbers to Check in Five Minutes
You rarely get a full data room in an interview. Ask for, or estimate, these: monthly revenue and its growth rate, gross margin, monthly net burn, runway in months and the size of the round. From those you can judge whether the round buys enough runway to reach the next milestone.
An illustrative example: a company raising $2,000,000 with a net burn of $100,000 a month buys about 20 months. If the next round needs MRR to triple and current growth is 5% a month, tripling takes about 23 months — longer than the runway. That gap is exactly the kind of insight an interviewer wants you to find.
≈ 20 months
Runway bought by $2M at $100K net burn
≈ 23 months
Time to triple MRR at 5% monthly growth
Gap
Milestone arrives after the cash runs out
Common Mistakes in VC Case Interviews
• Describing the company instead of evaluating it.
• Listing every risk without saying which one matters most.
• Ignoring valuation — a great company can still be a poor investment at the wrong price.
• Refusing to commit. "It depends" is a start, not an answer.
Practise From the Founder's Side
Investors who have felt the founder's trade-offs ask better questions. Founder Runway lets you run a startup for 20 turns from Pre-Seed toward Series A, managing cash, burn, investor trust and cap table health. Play a run and then write a short investment memo on your own company at turn ten — it is surprisingly good case practice.
Frequently asked questions
How do I prepare for a VC case interview?
Practise a simple framework — market, team, traction, economics and deal — on real or simulated companies, and always finish with a clear recommendation and the key risk that would change your mind.
What do VCs look for when evaluating a startup?
A large and growing market, a team with founder-market fit, evidence that customers want the product, economics that can reach the next milestone and a valuation that leaves room for a very large return.
Which numbers matter most in a startup evaluation?
Revenue and its growth rate, gross margin, monthly net burn, runway and the size of the round. Together they show whether the money raised can reach the next milestone.
Can a startup simulation help with VC interview prep?
Yes. Playing a founder's run makes the trade-offs between growth, burn and dilution concrete, and writing a short memo on your own simulated company is useful practice for structuring a recommendation.
Test this decision in the game.
Apply the same assumption across one run and see which metric weakened three turns later.