The Y Combinator Guide to Perfectly Pitching Your Seed Stage Startup with Michael Seibel
"Founders often remember every single investor who rejected them. This rejection becomes powerful motivation to prove them wrong."
So as we gear up for 2025 SaaStr Annual, May 13-15 in SF Bay, we wanted to take a look back at the top sessions from recent years. One of the best was when Michael Seibel from Y Combinator came to share his guide to pitching your seed stage startup to VCs.
TL;DR: The $1M Pitch Framework
Describe your startup in 2 sentences + one specific example – Make it impossible to misunderstand
Showcase your team’s specific, impressive accomplishments – Not titles, actual achievements
Present traction with timeframes – Show momentum, not just metrics
Share non-obvious insights – What do you know that others don’t?
Calculate market size with transparent math – Show your work
Ask directly for investment – With clear milestones for the next 18-24 months
Prioritize clarity over complexity – 80% accurate, 100% understandable beats the reverse
The Psychology of Seed Fundraising
Let’s be real: fundraising remains one of the most painful yet necessary processes for early-stage founders. The fundraising relationship is inherently asymmetric – investors see hundreds of pitches while founders pitch the same company hundreds of times.
Here’s what most investor psychology articles won’t tell you: founders often remember every single investor who rejected them. This rejection becomes powerful motivation to prove them wrong. As Michael Seibel notes, this emotional aspect of fundraising creates a challenging dynamic, especially for pre-product market fit companies where the fundraising process is most critical.
Become Ridiculously Easy to Understand
The #1 barrier preventing investors from understanding your company isn’t the complexity of your technology or business model. It’s you.
Successful fundraising requires unlearning several misconceptions most founders have about pitching:
Investors aren’t your customers – They don’t need the same technical explanation
Clarity trumps accuracy – Better to be 80% accurate and 100% clear than vice versa
Simple language wins – Industry jargon signals insecurity, not expertise
The goal isn’t to sound smart. The goal is to be impossible to misunderstand.
The 6 Essential Elements of a Compelling Seed Pitch
1. What Your Company Actually Does
The first 30 seconds are make-or-break. If investors don’t understand what you do, they mentally check out from everything that follows.
The 2-Sentence Test: Can you describe your company in two sentences that anyone could understand? If not, you’re not ready to pitch.
Example That Works:
“Airbnb lets homeowners rent out their homes or spare rooms to travelers online. For example, during Obama’s inauguration, a waiter in DC rented his apartment for $700 a night when hotels were completely booked.”
Notice how specific and vivid this is. The investor can immediately visualize both the business model and a concrete use case.
Example That Fails:
“We’re building a platform that leverages the sharing economy paradigm to monetize underutilized residential assets through a two-sided marketplace with integrated payment processing.”
Same company, drastically different clarity.
2. The Team Slide: Demonstrating Unfair Advantages
The team slide serves one purpose: proving you have the unique capabilities to execute on this specific vision.
What to Include:
Who’s on the team (actual names and roles)
Their specific, impressive accomplishments (not titles)
Relevant credentials and domain expertise
Personal experience with the problem (if applicable)
Common Mistakes:
Including meaningless titles
Not clearly defining who does what
Telling lengthy personal stories
Omitting specific accomplishments
A strong example: “Jane built the payment infrastructure at Stripe that processed $5B annually” is far stronger than “Jane was VP of Engineering at Stripe for 3 years.”
3. Traction: Proving Momentum Even Pre-Launch
Traction isn’t just about revenue or user metrics. It’s about clearly demonstrating what you’ve accomplished since starting the company – and how quickly.
The key insight: Investors fund momentum, not absolute numbers.
For early-stage startups, traction can include:
“Built iOS app in test flight with 100 users in one month”
“Conducted 50 customer interviews leading to 3 pilot customers in 6 weeks”
“Generated $10K MRR from first 5 customers in 3 months”
The critical element is including timeframes. “We have 1,000 users” is far less impressive than “We grew from 0 to 1,000 users in 8 weeks.”
If your traction is weak or non-existent, simply omit this section rather than including fake or unimpressive metrics that damage credibility.
4. Unique Insights: Your Non-Obvious Advantage
This is where you demonstrate the non-obvious knowledge you’ve gained about your problem, customer, or solution that others haven’t yet realized.
Airbnb’s unique insight wasn’t about travel or home-sharing – it was about solving the payment trust problem in a low-trust environment. They realized that by processing payments and holding funds until after checkout, they could create the trust necessary for their marketplace to function.
Strong unique insights typically come from:
Deep domain expertise
Customer discovery revealing unexpected pain points
Novel technical approaches to existing problems
Combining previously unconnected market trends
Make your insights compelling by:
Using specific examples and customer stories
Backing claims with data points
Explaining how you discovered this insight
5. Market Size: Show Your Math
The market size number matters far less than how you calculated it. This is where you educate investors on your research, methodology, and understanding of the market dynamics.
Strong Market Size Slides Include:
Bottom-up calculation (users × price)
Comparable products and their pricing
Value creation versus price charged
Logical progression from initial to expanded markets
Investors need to see your math. “Our TAM is $50B” means nothing without showing how you arrived at that figure. “We’re targeting 50,000 enterprise customers at an average $50K ACV, representing a $2.5B opportunity in our initial market” tells a much more credible story.
6. The Ask: Be Direct and Specific
Here’s where most seed pitches collapse at the finish line – they fail to actually ask for money. As Seibel emphasizes, investors come to pitches with three possible mindsets:
Never going to fund you
Definitely going to fund you
Might fund you if directly asked
The third category represents your biggest opportunity. By forcing investors to give a direct yes or no, you create psychological discomfort that often results in checks being written.
An Effective Ask Slide Includes:
Explicit amount being raised
Specific milestones to be achieved with the money
Timeframe for achieving these milestones (typically 18-24 months)
Revenue or usage targets that would excite investors
Example: “We’re raising $1.5M to reach $100K MRR within 18 months by expanding from our current 5 enterprise customers to 50.”
Structuring Your Pitch for Maximum Impact
Most founders make a critical error in pitch structure: they follow a standard format rather than leading with their strongest points.
The 60-Second Rule: You must earn each additional minute of investor attention. Lead with whatever is most impressive about your company, not what comes first in a traditional pitch deck template.
Even more counterintuitively, a successful pitch isn’t a monologue. It’s a conversation starter. The more the investor talks, the more likely they are to invest.
Why? Investors are far more convinced by their own thoughts and connections than by your claims. When they begin contributing ideas and seeing opportunities you haven’t mentioned, they’re essentially selling themselves on your company.
Practical application:
Start with your most compelling points
Watch for investor reactions and “tells”
When you see genuine interest or excitement, pause and ask questions
Let the investor talk at least 50% of the time
Design: Boring Slides Win
Counter to conventional wisdom, visually stunning slides often hurt seed-stage pitches. Your slides should be visually boring with clear, large text emphasizing the key points.
Why? Because the focus should be on you and your message, not the design elements. As Seibel notes, a designer may not understand which points are most important, so it’s better for founders to create simple slides that emphasize the key information.
The Y Combinator Case Study
Even Y Combinator follows this exact framework. Their pitch is remarkably simple:
“Y Combinator provides early-stage startups with $500,000 and access to the world’s most successful startup community. Our portfolio includes companies like Stripe, Airbnb, and Dropbox.”
Their traction? 75+ companies valued over $100M.
Their team? Group partners who have started, funded, hired, and fired – experienced operators, not just investors.
Their unique insights:
Applications without warm intros yield better dealflow
Funding startups in batches creates mutual support and advantages
Demo Day creates a fundraising auction that results in higher valuations
Their market size? 40+ tech IPOs per year generating approximately $10B in returns.
The Bottom Line: 5 Actionable Takeaways
Simplify relentlessly – If your grandmother can’t understand what you do, neither will investors
Lead with strength – Your most impressive attribute should come first, not last
Show momentum – Timeframes matter more than absolute metrics
Make investors talk – The more they talk, the more likely they invest
Ask directly – “Will you invest?” is the most powerful question in fundraising
Remember: Fundraising is a necessary evil for most startups. The faster you get good at it, the faster you can get back to building your company. Perfect your pitch using this framework, and you’ll dramatically increase your odds of successful fundraising.