Pitch Deck Feedback Before Investors See It

Investors give a deck far less time than you spent making it. DocSend, which sells software for sharing decks and tracks how they're read, reports that investors spend less than three minutes reviewing pitch decks¹. The decks that raised held them longer: in DocSend's 2020 pre-seed data, investors spent over four minutes on those and about a minute and a half on decks that didn't.

So read yours the way they will. Open the file you plan to send, give yourself three minutes, and don't fill gaps from memory. Then write one sentence saying what the company does. Sequoia's guide to pitching asks founders to define the company in a single declarative sentence², and warns that it's harder than it looks.

If your sentence needs a second clause to rescue the first, or leans on words like "platform" and "solution", fix the title slide before anything else. Every later slide should back that sentence up.

Every slide raises a question. Either a later slide answers it, or you need the answer ready for the meeting. Write each one down as you go.

Three rows need extra care. Michael Seibel, a general partner at Y Combinator, prefers sizing a market from the bottom up³, because it avoids a common top-down pitfall: not narrowing down the customer enough. And in DocSend's pre-seed data, decks that raised money were far more likely to have a section on their main competition¹.

On the team slide, Aaron Harris's seed deck template for Y Combinator asks for what makes the founders well suited to the problem⁴, and adds: "Nobody cares about your advisors."

Next, read every number as if you doubted it. Harris's template also asks founders to make the traction numbers clear and meaningful⁴. In practice, each figure should say what it counts, over what period and as of when.

Andreessen Horowitz's guide to startup metrics lists the usual traps. Letters of intent and verbal agreements are neither revenue nor bookings⁵. "Active" needs a definition. And a cumulative chart rises even while a business shrinks, so show monthly figures on a chart with a labeled y-axis.

Last, check that each figure matches wherever it appears. If slide 4 says 41 clinics and the appendix says 38, a careful reader stops trusting both. Investors who like the deck will ask where each number comes from, so keep the backup in a data room.

A pass often comes without a reason, and sometimes it doesn't come at all. Paul Graham, a co-founder of Y Combinator, warns that some investors never actually say no; they just stop replying to your emails⁷. So get the blunt version before you spend your best introductions.

Pick three to five readers with no reason to flatter you. Good choices are founders who raised at your stage recently, an angel you don't plan to pitch soon, and one smart friend outside your industry. Graham notes that some founders deliberately schedule a few less promising investors first, to get the bugs out of their pitch⁷.

1. 1

   Send it as investors get it

   Share the PDF or a link with one line of context, and don't walk anyone through it first.

2. 2

   Get it back in one sentence

   Have each reader tell you what the company does. It's Seibel's Email Test applied to a deck: if they ask any clarifying questions, you need to revise³.

3. 3

   Ask the same four questions

   Which number did you doubt? What would you ask first? Where did you lose interest? Why might you pass?

4. 4

   Fix patterns, not tastes

   One reader's dislike is a preference. Two or three readers stumbling on the same slide is a problem to fix.

Not every comment deserves a change, and what counts as a gap depends on the round. DocSend found the "why now?" slide crucial in pre-seed decks but not among the most-viewed sections in its Series A data¹. Its explanation: a Series A company should already have traction, and may need to focus on scaling its business model instead.

Fix what misleads first, then what confuses, then what's merely weak. If readers stumble over the story itself rather than single slides, rebuild it with the pitch deck writer. Then give the new version to someone who hasn't seen the old one, since nobody can read a deck cold twice.

When the deck clears every check, use an investor target list to decide who sees it first. For a first read before you ask anyone, try the tool at the top of this page. It reads your deck as a seed investor would and leaves notes in the margin, without changing a word.