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Y Combinator
@ycombinator.com.web.brid.gy
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Y Combinator created a new model for funding early stage startups. Twice a year we invest in a large number of startups.

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BillionToOne Goes Public — The Startup That Made Genetic Testing Universal
Today, BillionToOne goes public, becoming YC's fourth publicly traded biotech company. More importantly, they have built one of the most important genetic tests in the U.S. Today, 1 in 11 babies born in the US are tested with BillionToOne's fetal genetic test.
www.ycombinator.com
November 7, 2025 at 8:04 AM
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Meet YC's Newest Visiting Partners
We're excited to announce that nine exceptional founders are joining us as Visiting Partners at YC: Matt Riley, Harshita Arora, Grey Baker, Christopher Golda, Raphael Schaad, Christina Gilbert, Francois Chaubard, Vivian Shen, and James Evans.
www.ycombinator.com
October 28, 2025 at 8:03 AM
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YC x Coinbase RFS: Build Onchain
We are entering the era of Fintech 3.0. Regulatory clarity, growing consumer adoption, and low-cost chains have paved the way for a golden age of building in crypto — and at YC, Base, and Coinbase, we want to fund builders to seize this moment.
www.ycombinator.com
October 7, 2025 at 7:59 AM
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Welcoming Jon Xu and Andrew Miklas as YC’s Newest General Partners
Over the last few batches, visiting partners Jon Xu and Andrew Miklas have become two of the most trusted voices in the YC community. They were both founders in YC’s Summer 2010 batch, and now, 15 years and two industry-shaping companies later, they’re back in a new role: General Partners at YC.
www.ycombinator.com
June 1, 2025 at 6:06 PM
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Tyler Bosmeny built Clever into a $500M company–now he’s helping YC founders do the same as General Partner
We’re thrilled to welcome Tyler Bosmeny back to YC, this time as a General Partner.
www.ycombinator.com
April 8, 2025 at 6:09 PM
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Michael Seibel's Legacy Continues at YC: Transition to Partner Emeritus
If you’ve been around YC, you know Michael Seibel has been a huge part of it for over a decade. He’s done it all - YC Founder (w07, w12), Group Partner, and Managing Director/CEO of the YC accelerator. Along the way, he’s helped
www.ycombinator.com
April 2, 2025 at 6:00 PM
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East Coast College Tour 2025
YC is going on a college tour! We're visiting Harvard, Yale, MIT, Columbia, Cornell, and Cornell Tech. If you're a current student at any of those schools and interested in startups, we'd love to meet you.
www.ycombinator.com
March 26, 2025 at 6:06 PM
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Summer Fellows Grants
This summer, YC will be giving grants to college students to work on their own technical projects. We’re calling these the Summer Fellows Grants. We hope this will encourage the smartest students to indulge their intellectual curiosity and work on hard technical things.
www.ycombinator.com
March 2, 2025 at 5:55 PM
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Join us at AI Startup School — June 16-17
We're gathering 2,000 of the top CS undergrads, masters, and PhD candidates in AI to hear from speakers including Elon Musk, Satya Nadella, Sam Altman, Andrej Karpathy, Andrew Ng, and many more — the world’s top AI experts and founders who will teach you how to build the future.
www.ycombinator.com
February 20, 2025 at 5:55 PM
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Announcing YC X25, the spring 2025 batch
Y Combinator is now running four batches per year: Winter, Spring, Summer, and Fall. We completed the first ever fall batch last year, F24, and are proud to announce the first ever spring batch. Applications are now open.
www.ycombinator.com
January 27, 2025 at 7:30 PM
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YC Winter 2025 batch applications due by Tuesday, November 12, 2024
To better serve founders given the rapid rate of technological change, YC recently switched from two to four batches per year. The winter 2025 batch will run from January to March, and applications are due on November 12.
www.ycombinator.com
January 28, 2025 at 7:23 PM
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Correcting the record for Continue and PearAI
YC is at our best when backing founders with an ethos of building for others, including strong open source developers like the founders of Continue and many others. Earlier this week, a startup in the current batch, PearAI, was criticized online for an inappropriate approach to open source, particularly in
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January 28, 2025 at 7:23 PM
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Join us at Startup School Europe in London - November 23
Applications for Startup School Europe are now open!
www.ycombinator.com
January 23, 2025 at 7:22 PM
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YC Fall 2024 batch applications due by 8/27
In response to overwhelming demand, we are running a YC batch this fall. Applications are now open.
www.ycombinator.com
January 28, 2025 at 7:22 PM
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Join us at Startup School 2024 in San Francisco - July 27
Applications for Startup School 2024 are now open!
www.ycombinator.com
January 28, 2025 at 7:22 PM
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Female Founders Conference applications are open now
We’re bringing the Female Founders Conference back in-person, and we’ll be hosting it on August 2 at our office in the Dogpatch in San Francisco.
www.ycombinator.com
January 28, 2025 at 7:22 PM
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Dissecting the past to predict the future: Tracy Young on building TigerEye
In 2018, Tracy Young and her co-founders sold PlanGrid for $875 million. By 2021, she was ready to jump back in and do it all over again with a brand new startup. I chatted with Tracy about what drives her and some of what she's learned along the way.
www.ycombinator.com
January 24, 2025 at 7:37 PM
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Last chance to apply for YC’s S24 batch
If you were interested in applying for S24 but thought it was too late, it’s not. If you apply by June 13, we’ll still have time to look at your application.
www.ycombinator.com
January 24, 2025 at 7:37 PM
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Humanloop CEO Raza Habib shares 5 common mistakes teams make when building with LLMs
After working with hundreds of teams to make better products with LLMs, Humanloop CEO Raza Habib shares some of the most common mistakes he's seen.
www.ycombinator.com
January 23, 2025 at 7:22 PM
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Why YC went to DC
A few weeks ago, I went to DC to start engaging policymakers and be the voice of little tech. Here's why.
www.ycombinator.com
January 9, 2025 at 7:12 PM
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The origins of RevenueCat
If you build something because you need it, chances are good others need it too. In this interview, RevenueCat CEO Jacob Eiting shares how solving his own frustrations led to building a tool that helps power over 30,000 apps.
www.ycombinator.com
May 30, 2024 at 8:00 PM