# The 24 Best Y Combinator Companies of All Time

> Some of these started as a two-person batch project and now trade on public exchanges; others were sold or quietly faded after their peak. Which alumni actually earned the hype?

*By YPB Team · Published November 5, 2026 · https://youpick.best/ranking/the-24-best-y-combinator-companies-of-all-time*

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## Current results (no votes yet)

1. **Airbnb** — score 1000/1000
   Home-sharing marketplace that went through Y Combinator in Winter 2009 and listed on Nasdaq in December 2020.
2. **Stripe** — score 714/1000
   Online payments company founded by brothers Patrick and John Collison, part of Y Combinator's Summer 2009 batch.
3. **Razorpay** — score 550/1000
   Indian online payments gateway founded by Harshil Mathur and Shashank Kumar, a YC Winter 2015 company.
4. **Rappi** — score 494/1000
   Colombian on-demand delivery app from YC's Winter 2016 batch that became Colombia's first tech unicorn in 2018.
5. **Reddit** — score 494/1000
   Social news and discussion site founded in 2005 by Steve Huffman and Alexis Ohanian in Y Combinator's first batch; it listed on the NYSE in 2024.
6. **Gusto** — score 494/1000
   Payroll and HR software for small businesses, launched as ZenPayroll in YC's Winter 2012 batch.
7. **Coinbase** — score 494/1000
   Cryptocurrency exchange co-founded by Brian Armstrong, a YC Summer 2012 company that went public through a direct listing in April 2021.
8. **Instacart** — score 428/1000
   Grocery delivery service founded by Apoorva Mehta, a YC Summer 2012 company that went public on Nasdaq in September 2023.
9. **Flexport** — score 428/1000
   Digital freight forwarder and logistics platform founded by Ryan Petersen, a YC Winter 2014 company.
10. **Deel** — score 428/1000
   Global payroll and international hiring platform from YC's Winter 2019 batch, valued at $12 billion in 2022.
11. **PagerDuty** — score 428/1000
   Incident-response and on-call alerting platform from YC's Summer 2010 batch, listed on the NYSE in 2019.
12. **GitLab** — score 350/1000
   Git repository and DevOps platform that joined YC in Winter 2015 and went public on Nasdaq in October 2021.
13. **Heroku** — score 350/1000
   Cloud application platform from YC's Winter 2008 batch, bought by Salesforce in 2010 for $212 million.
14. **Brex** — score 350/1000
   Corporate card and spend-management company founded by Henrique Dubugras and Pedro Franceschi, YC Winter 2017.
15. **Twitch** — score 350/1000
   Live-streaming platform spun out of Justin.tv, a YC Winter 2007 startup, and bought by Amazon in 2014 for about $970 million.
16. **OpenSea** — score 257/1000
   NFT marketplace founded by Devin Finzer and Alex Atallah, a YC Winter 2018 company valued at $13.3 billion in January 2022.
17. **Scribd** — score 257/1000
   Document-sharing site from YC's Summer 2006 batch that grew into an ebook and audiobook subscription service.
18. **DoorDash** — score 257/1000
   Food delivery platform started by Stanford students that joined YC in Summer 2013 and listed on the NYSE in December 2020.
19. **Scale AI** — score 257/1000
   AI training-data company founded by Alexandr Wang and Lucy Guo in YC's Summer 2016 batch; Meta bought a 49% stake in 2025.
20. **Zapier** — score 257/1000
   Workflow automation tool that connects web apps so tasks run without code, a YC Summer 2012 company.
21. **Weebly** — score 257/1000
   Drag-and-drop website builder from YC's Winter 2007 batch, acquired by Square in 2018 for about $365 million.
22. **Dropbox** — score 257/1000
   Cloud file-storage service founded by Drew Houston and Arash Ferdowsi in YC's Summer 2007 batch, listed on Nasdaq in 2018.
23. **Docker** — score 0/1000
   Container software company that began as the platform-as-a-service startup dotCloud in YC's Summer 2010 batch.
24. **Ginkgo Bioworks** — score 0/1000
   Boston synthetic-biology company that was Y Combinator's first biotech investment, in the Summer 2014 batch.

Tags: brands, usa, tech, business, startups, y combinator