All Articles


What Makes The Top 10% Of Founders Different?

Y Combinator CEO and Partner Michael Seibel on what makes the top 10% of founders different.

Topics 00:00 – What Makes The Top 10% Of Founders Different? 00:35 – Great founders execute 1:22 – Formidability 2:09 – Clear communication 3:40 – Internal motivation 4:52 – Note that “idea” is not on....
11/13 163

Consume Information That Encourages You To Do More

YC Partner and Head of Admissions Dalton Caldwell on consuming tech media and being careful to choose things that encourage you to do more.

Topics 00:00 – Consume information that encourages you to do more 1:25 – You don’t need permission from investors to start a company 2:30 – Is thought....
10/11 134

Y Combinator Top Companies – 2019


We’re excited to share the list of 2019 Top Y Combinator Companies. We also included top exits.

We put this list together to help potential employees, partners, and late stage investors get to know a wider set of YC companies. If you’re looking for a job at one of our top companies, you can hit....
10/02 66

How To Cold Email Investors – Michael Seibel

Y Combinator CEO and Partner Michael Seibel on how to cold email investors.


00:00 – Intro

00:17 – Make it short, i.e. 60 seconds or less to read

00:58 – Interested in: the problem you’re trying to solve, what your solution is, have you launched, do you have growth, how big you think the....
09/24 226

The Cost of Preemptive Deals

Cost of preemptive deals 1024x78

Recently, while discussing a preemptive funding offer with a company, we noticed that the offer was more dilutive than expected. Wondering if this was an outlier, we looked at 120 US Series A rounds from our portfolio over the past 18 months to see whether or not preemptive offers were generally....
09/19 110

The Biggest Mistakes First-Time Founders Make

Y Combinator CEO and Partner Michael Seibel on the biggest mistakes first-time founders make.

Topics 00:10 – Solving a problem you don’t care about 1:00 – Helping users you don’t care about 1:40 – Choosing cofounders you don’t know well 2:20 – Not having transparent conversations with your....
08/16 176

“Angels,” Angels, and VCs


I’ve recently noticed an uptick in the number of “angels” that aren’t actually angels. These investors are institutional funds (read, LP dollars), the details of which aren’t generally disclosed until the founder sees a strange entity name on the signature lines in the docs.

This is different....
08/12 259

How Biotech Startup Funding Will Change in the Next 10 Years


Back when YC was getting started about 10 years ago, Paul Graham wrote some essays that predicted the way startup fundraising would change in the next decade – accurately, it turns out. In short, Paul Graham predicted that there would be way more startups, that they’d be cheaper to start, that....
08/05 383

When to Shut Down a Startup

YC Partner and Tutorspree cofounder Aaron Harris on when to shut down a startup.

Read Aaron’s post On Shutting Down here.
07/29 80

Camille Fournier on Managing Technical Teams

Camille Fournier is a Managing Director at Two Sigma and the former CTO of Rent The Runway. She’s also the author of The Manager’s Path: A Guide for Tech Leaders Navigating Growth and Change.

You can find her on Twitter @skamille.


00:00 – Intro

00:35 – Why do many individual contributors....
07/17 94