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Garry Tan and Sachin Agarwal, founders of Posterous (YC S08)Substack · 2017

Posterous · YC S08Substack · 2017

Tikhon Bernstam, co-founder of Parse (YC S11)Supabase (YC S20)

Parse · YC S11Supabase · YC S20

Sam Altman, founder of Loopt (YC S05)Snap Maps (2017)

Loopt · YC S05Snap Maps · 2017

Webvan delivery truck (1999)Instacart team at Nasdaq IPO (YC S12)

Webvan · 1999Instacart · YC S12

Startups die.
Ideas don't.

Every failed startup is a lesson for founders.

Deeply researched retros and rebuild playbooks.

Covering 1,841+ YC startups from 2005 to today

Featured Companies

S05
Acquired
Loopt logo

Loopt

Loopt, based in Silicon-Valley and backed by leading venture capital firms Sequoia Capital and New Enterprise Associates, has created an interoperable social-mapping service that allows individuals to use their location to discover the real world around them – enabling them to find and enjoy the people, places, and events that mean the most right here and now using their mobile phones. With Loopt, individuals will always know who’s around, what to do, or where to go

W07
Acquired
Startups.RIP — Dead startups, alive ideas
PricingGot feedback? DM @oscrhong
Twitch logo

Twitch

Community

A global community creating the future of live entertainment.

W08
Active
RescueTime logo

RescueTime

Developer Tools

Take Back Control of your Time

W09
Acquired
reMail logo

reMail

Email

Email search for iPhone. Acquired by Google in Feb 2010.

S10
Acquired
GazeHawk logo

GazeHawk

Computer Vision

Eyetracking using webcams.

S11
Active
GoCardless logo

GoCardless

Fintech

We’re building the world’s bank payment network.

W16
Inactive
Pathmind logo

Pathmind

Reinforcement Learning

Pathmind helps industrial engineers and simulation modelers achieve…

W16
Inactive
StrongIntro logo

StrongIntro

Recruiting

StrongIntro helps recruiters turn their entire company into a source…

S17
Inactive
Polly logo

Polly

Social

Polly is a social polling app for Snapchat and Instagram stories.

W18
Active
Lucy Goods, Inc logo

Lucy Goods, Inc

3D Printed Foods

Lucy’s mission is to reduce tobacco-related harm to zero. We provide…

S18
Active
College Pulse logo

College Pulse

Education

Research and analytics company focused on college students.

S18
Acquired
OneGraph logo

OneGraph

API

GraphQL API to connect all of the internet's APIs. Join us at Netlify!

S05
Acquired
Kiko logo

Kiko

Calendar

We're the best online calendar solution to ever exist. Period.

S05
Acquired
Reddit logo

Reddit

Community

The frontpage of the internet.

W06
Acquired
Clustrix logo

Clustrix

Clustrix provides the leading scale-out relational database engineered for the cloud or data center. ClustrixDB is a drop-in replacement for MySQL and an ideal solution for high-transaction, high-value workloads typically found in businesses such as ad tech, e-commerce, gaming, and large web and mobile businesses. Our customers use ClustrixDB for critical business applications that support massive transactional volume. ClustrixDB delivers more than twenty-five trillion transactions per month for customers including AOL, Nielsen, Match, MakeMyTrip, Photobox, Rakuten, and Symantec. Headquartered in San Francisco, Clustrix is funded by HighBar Partners, Sequoia Capital, U.S. Venture Partners, ATA Ventures, and Y Combinator. ClustrixDB is available in software that runs on commodity hardware and on any cloud. Visit www.clustrix.com to learn more. Follow @Clustrix on Twitter and "like"​ us on Facebook! #BetterSQL

W06
Acquired
Wufoo logo

Wufoo

SaaS

Online form builder.

S06
Acquired
OMGPop logo

OMGPop

Gaming

An independent flash game studio.

W07
Acquired
Heysan logo

Heysan

Community

Free messaging on mobile phones

W07
Acquired
Weebly logo

Weebly

Build a free website that grows with your business.

S07
Acquired
Disqus logo

Disqus

Community

Add comments to your website.

W08
Acquired
A Thinking Ape logo

A Thinking Ape

Gaming

We build communities through massively multiplayer mobile games

W08
Acquired
Heroku logo

Heroku

Enabling developers to build and run applications in the cloud.

W08
Acquired
Machine Zone logo

Machine Zone

Gaming

Pioneers of mobile social gaming.

S08
Acquired
Posterous logo

Posterous

Email

Dead simple blogs by email

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