Your Pitch Deck Is Just the Entry Ticket
Investors spend an average of 3 minutes and 44 seconds reviewing a pitch deck. That's not where the real evaluation happens. The deck gets you a meeting. The meeting gets you into due diligence. And due diligence is where most deals die.
I've reviewed hundreds of pitch decks and taken dozens of investment calls. The pattern is consistent: founders obsess over slide design and narrative flow - which matters - but completely overlook the 7 areas I actually dig into before writing a check. Here's what those are.
Why the Post-Deck Phase Kills More Deals Than Bad Decks
A bad deck gets you rejected in 3 minutes. A good deck gets you a 30-minute call. But between that call and a signed term sheet, there's a gap where 60-70% of "interested" investors go silent.
That gap is the due diligence phase, and most founders don't prepare for it.
The investor's decision process looks like this:
| Stage | What Happens | Where Deals Die |
|---|---|---|
| Deck review | 3-4 min scan, pass/fail on narrative and market | ~80% filtered out |
| First call | 30 min, founder + market evaluation | ~50% of remaining |
| Due diligence | Deep dive into 7 areas below | ~40% of remaining |
| Decision | Partner meeting or angel conviction check | ~20% of remaining |
If 100 decks land in an investor's inbox, roughly 2-3 result in a check. Most of the attrition happens before the first call, but the most painful drops happen during diligence - when founders thought they were close.
The 7 Things I Actually Check
1. Cap Table Cleanliness
The first thing I look at after a good meeting is the cap table. Not because I care about exact percentages at pre-seed - but because a messy cap table signals bigger problems.
Red flags:
- Founders who've given away 30%+ equity before raising institutional money
- Advisors with 2-5% equity for unclear contributions
- Dead equity held by cofounders who left
- Multiple SAFE rounds with different valuation caps that create a conversion nightmare
What good looks like: Founders hold 70-80%+ combined at pre-seed. Option pool is reasonable (10-15%). Cap table is simple enough to explain in 2 minutes.
2. Burn Rate and Runway Math
I want to see that you understand your own finances - not just that you have a spreadsheet.
What I check:
- Monthly burn rate (gross and net)
- Current runway in months
- What assumptions drive the burn (headcount, infrastructure, marketing)
- Whether the requested raise amount matches a realistic 18-24 month plan
Founders who say "we need $1M" but can't explain what month they run out of money at current burn - that's a pass. 82% of startup failures trace back to cash flow mismanagement.
3. Customer Conversations (Not Just Metrics)
Numbers tell me what's happening. Customer conversations tell me why. After the first call, I'll often ask: "Can I talk to 2-3 of your customers?"
What I listen for:
- Do customers describe the problem the same way the founder does?
- Would they be upset if the product disappeared tomorrow?
- Did they find the product through a repeatable channel or was it a founder's personal network?
If a founder hesitates to connect me with customers, that's information.
This is the kind of preparation I flag in my pitch deck reviews - the questions investors will ask that aren't on any slide, and how to be ready for them. Learn more about the Pitch Deck Review.
4. Founder-Market Fit Evidence
"Why you?" is the hardest question to answer well and the most important one at pre-seed when the product is still early.
Strong signals:
- Spent 5+ years working in the industry they're disrupting
- Previously tried to solve this problem and failed (then learned what works)
- Built a community or audience in the space before starting the company
- Have relationships with potential customers from prior work
Weak signals:
- "I had this idea in the shower"
- Came from a completely unrelated industry with no domain knowledge
- Can't name 10 potential customers by name without looking at a list
5. Competitive Awareness (Not a 2x2 Matrix)
The competitive landscape slide in most decks is useless. A 2x2 matrix with your company in the top-right corner tells me nothing. What I actually want to know:
- Who did you lose a customer to, and why?
- Who else is raising right now in this space? (If 5 competitors just raised, that's both validation and a risk)
- What would a well-funded competitor need to do to kill your business?
- What's your honest assessment of where you're weaker?
Founders who pretend they have no competition or claim to be "in a category of one" lose credibility immediately.
6. Digital Reputation and Signal Quality
This one surprises founders, but I check it every time.
What I look at:
- Your LinkedIn profile and activity (do you look like a credible founder?)
- Your company's online presence (does the website match the ambition of the pitch?)
- Press mentions, podcast appearances, or content you've published
- GitHub activity for technical founders
- Twitter/X presence in your industry
I'm not looking for influencer status. I'm looking for evidence that you're engaged in your market and that other people in the space take you seriously. A founder with 200 LinkedIn connections and no posts is a yellow flag at seed stage.
7. Reference Checks on the Team
At seed stage, this isn't a formal reference check with 5 phone calls. But I will:
- Ask mutual connections what they think of the founder
- Check if previous employers or investors would vouch for them
- Look at what the founding team built before (even side projects)
- Evaluate the dynamic between cofounders during the call (tension is obvious)
The honest truth: At pre-seed and seed, I'm betting on the team more than the product. The product will change. The team's ability to execute under pressure is what matters.
Want to know what an investor sees when they look beyond your deck? I review pitch decks with written analysis of narrative, structure, investor red flags, and the questions you'll face in diligence - delivered in 48 hours. Get a Pitch Deck Review - $400
How to Prepare for Post-Deck Diligence
Before you send your first pitch email, have these ready:
- Clean cap table - Use Carta, Pulley, or a simple spreadsheet. Know your numbers cold.
- Financial model - Not a 50-tab spreadsheet. A clear 18-month projection with stated assumptions.
- Customer references - 2-3 customers who will take a 10-minute call with an investor. Brief them in advance.
- Your "Why me" story - Practice articulating your founder-market fit in 60 seconds.
- Competitive analysis - An honest document that acknowledges where competitors are strong, not just where you win.
- Data room - A shared folder with your deck, financials, incorporation docs, and key metrics. Ready to share within 24 hours of a good meeting.
The founders who close fastest are the ones who treat diligence as an offensive tool, not a defensive exercise. When an investor asks for your financials and you send them within an hour, that signals competence.
Book an Angel Call - $300 to walk through your diligence readiness with an active investor. If I invest, the session fee is credited toward my check.
Frequently Asked Questions
How long does investor due diligence take at seed stage?
Angel investor diligence typically takes 1-3 weeks after the first meeting. Institutional seed funds may take 4-8 weeks including partner meetings. The fastest way to accelerate diligence is having all materials ready in a data room before you start pitching.
What documents should be in a startup data room?
A seed-stage data room should include: pitch deck, cap table, financial model (18-month projection), incorporation documents, SAFE or term sheet template, key metrics dashboard, and customer list or testimonials. Keep it organized and up to date. Stale data rooms signal disorganization.
Do angel investors do due diligence differently than VCs?
Yes. Angels typically do lighter but faster diligence - focusing on founder-market fit, cap table, and a few customer conversations. VCs run more structured processes with partner meetings, formal reference checks, and deeper financial analysis. Both check your digital reputation.
What are the biggest red flags investors find during diligence?
The top deal-killers in diligence are: messy cap tables with too much equity given away, founders who can't explain their own financial model, inability to provide customer references, major discrepancies between the pitch and the data, and cofounders who clearly aren't aligned.
Should I prepare a data room before starting to fundraise?
Absolutely. Having a data room ready before your first pitch signals professionalism and accelerates the process. Investors who are interested will ask for materials within 24-48 hours of a good meeting. If you need a week to pull documents together, you've lost momentum.
Artem Luko is an angel investor based in Marbella, investing $25K-$3M in pre-seed and seed startups. He reviews pitch decks and evaluates startup readiness at artemluko.com.