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Advice for companies with less than 1 year of runway
Read more on Y Combinator's blog.
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MK-1
AMD acquires MK1, welcoming their world-class team and marking another key milestone in our strategy to advance AI performance and efficiency.
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Request for Startups: Climate Tech
At YC, we believe founders and startups can make a positive impact on climate change and support the transition to a sustainable future. Here are a few areas and ideas we find most interesting, and hope to see founders apply with.
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Slack Bot Business Tutorial: From zero to $25k per month
Wondering how to make a Slackbot that drives revenue? Check out this step-by-step tutorial. It's a case study of how we built a profitable business on Slack with thousands of USD in revenue.
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How we bootstrapped a $1M ARR email client
Five years ago, we launched Missive, an innovative but somewhat hard-to-define email client to the world....
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How to Pitch Your Company
Read more on Y Combinator's blog.
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What happens when the U.S. President uses your startup for a conference call
Mixlr is a London-based startup founded in 2010 to make broadcasting live audio easy and social.... Read More ›
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Herdr is joining Y Combinator. The runtime stays open
Herdr is joining Y Combinator. The runtime is Apache-2.0 and stays open, and here is what the funding is actually for.
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How we unnecessarily burned 20k with Facebook Ads
We've also tried Facebook marketing. In this blog post we describe our successes and failures with the marketing channel Facebook.
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Our Startup Handbook
Over the past ten years, we have invested in and worked with close to 100 startups. Along the way, we have seen teams, ideas, and practices work spectacularly well. And, we’ve seen others that didn’t work out as expected. We decided to take the experiences and insights learned over the past decade and compile them […]
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Scaling a startup from a bunker: founders' story from Ukraine
This is a story of how we survived, relocated a team, and scaled our startup under never-ending missile attacks.
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Financial Modeling for Startups: An Introduction
Founders and executives of new companies, particularly those seeking to raise capital, will inevitably be confronted with the prospect of building a financial model. The goal of this guide is to give you an idea of what a financial model is, why you might want one, and how to go about building one.
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A Reminder To Investors
Sam wrote about this in his recent blog post [https://ycombinator.com/blog/diversity-and-startups], but I’ve found that important and seemingly obvious things often bear repeating. So with Demo Day approaching, I’d like to make the following point explicit: Y Combinator has a zero tolerance policy for inappropriate…
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Pebble Mega Update – July 2026
TL:DR; Pebble Time 2 Shipping Status Pebble Software Updates PT2 Issues You’ve Reported Pebble Round 2 Production Update Index 01 Production Update Pebble Ti...
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Why your startup should be a Delaware C-Corp, not an LLC
LLC vs C Corps. Get valuable insights and learn how to protect your business from unwanted legal liabilities. Be ahead of the competition.
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YC 120
[https://ghost.prod.ycinside.com/content/images/wordpress/2019/01/yc120-v1.png] The world is shaped by people with intelligence, drive and vision. At YC, we’ve learned a lot about cultivating a network of such people — and we believe that having a strong network is such a force multiplier that it is one of the most…