(2025-12-09) Lenny How To Spot A Top 1% Startup Early

Lenny Rachitsky shares Terrence Rohan: How to spot a top 1% startup early. Lenny: After reading the early draft of this post, my approach to investing and giving career advice immediately shifted.

Lenny and I were curious about a quiet class of employees who seem just as good as—if not better than—the most famous VCs at spotting generational companies before they blow up.

we interviewed five people whose resumes include some of Silicon Valley’s most remarkable companies: Palantir, OpenAI, Facebook, Stripe, Linear, Figma, Notion, Slack, Box, Spotify, and Dropbox.

Each joined at least two of these companies early

We were curious: What did they see? How did they choose? Are there lessons to take from their experiences?

Across their stories, we saw three distinct factors that mattered most.

One of the clearest markers of a future generational company, according to our interviewees, is ambition. It came up again and again.

early Facebook team. They all seemed too smart to be working on ‘social networking’ but had a lofty idea for where the internet was ultimately headed

ambition of the goal.

What are signs that the founder’s ambition is big enough?

The founder sounds a bit crazy.

People laugh at them. Rasmus recalled, “Spotify, a little group of ‘nobodies’ in Sweden, said, ‘Let’s build a catalog of all the music in the world and give everyone access.’

2. Founders, founders, founders

the founders matter above all else. Not as one variable among many—this was the variable.

I’m going to work hard, and I want to win, but I want to do it with people whom I want to see win too. When I joined Stripe, I joined more because I thought the people were special. I had more conviction about the company itself later.”

How to judge founders

intelligence

ambition

some less obvious traits.

a. Ability to adapt

how fast they operated

b. Ferocity

passion

intensity

c. Founder-market fit

3. Judging today’s product is a trap

How to judge the product

1. Mission/vision

2. Strong customer pull

observing what developers said about the product in forums

3. A demo that leaves you feeling like you just glimpsed the future

Now it’s your turn

note that none of these people found their jobs through applications or recruiters. Their paths were unpredictable, even serendipitous.

Cristina met Stripe’s Patrick Collison at a barbecue. Rasmus got a cold call from Spotify’s Daniel Ek in 2006. Soleio was invited to Palo Alto after winning an online design award. Bob already knew half of Palantir’s founding team from PayPal. Sean replied to Stewart’s Twitter thread about a feature request.

You can’t manufacture luck,” Sean said. “But you can optimize for serendipity. Be genuine. Use what they’ve built. Reach out with real interest.”