Sign in
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 1,739+ 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

W06
Acquired
Wufoo logo

Wufoo

SaaS

Online form builder.

W07
Acquired
AU

Auctomatic

Auctomatic, a Y Combinator company, offers an auction and marketplace management system for all of those individual sellers on such sites as Ebay, Amazon, Overstock and others. The application lets you list your items as well as manage your sales, but it also helps you understand how to best optimize your selling and maximize profits. The company also received an investment from Paul Buchheit, the lead developer of Gmail.

S08
Acquired
Posterous logo

Posterous

Email

Dead simple blogs by email

S09
Acquired
Bump logo

Bump

Bump, Flock, Photoroll (unreleased) => Google Photos

W10
Acquired
Creative Market logo

Creative Market

Marketplace

Marketplace for graphic design assets

W10
Acquired
Optimizely logo

Optimizely

Marketing

The first all-in-one operating system for marketing

S10
Acquired
FutureAdvisor logo

FutureAdvisor

Fintech

The online financial management service for everyone.

W11
Inactive
Tutorspree logo

Tutorspree

Education

Online tutoring marketplace.

S11
Acquired
Codecademy logo

Codecademy

Education

The leading online learning platform for technical skills.

S11
Acquired
CO

Compose

DevOps

We make it easy to run databases. PostgreSQL, Redis, MongoDB,…

S11
Acquired
EM

Embark

Transportation

Public transit apps. Acquired by Apple in 2013.

S11
Acquired
PA

Parse

Parse is the easiest way to build apps.

W12
Acquired
42

42Floors

Real Estate

We make it easy to search for office space.

W12
Acquired
FarmLogs logo

FarmLogs

Analytics

Software that helps farmers operate more profitable businesses.

W12
Inactive
LendUp logo

LendUp

Fintech

LendUp is a socially responsible company on a mission to redefine…

W12
Inactive
Make School logo

Make School

Education

Make School is redesigning college for the 21st century. Students…

W12
Inactive
The Muse logo

The Muse

Marketplace

The Muse is values-based job search & hiring for 7M+ monthly

S12
Acquired
Clever logo

Clever

Education

The platform that powers technology in the classroom.

W14
Acquired
Wit.ai logo

Wit.ai

Developer Tools

Natural Language for Developers --Wit is an API that makes it easy…

S15
Acquired
Triplebyte logo

Triplebyte

SaaS

Intelligent technical hiring.

S16
Acquired
CrowdAI logo

CrowdAI

Machine Learning

CrowdAI is the world's leading no-code platform for vision AI

S16
Inactive
FA

Farmstead

Artificial Intelligence

An AI-powered digital grocer that delivers in under 60 mins.

S16
Acquired
Saleswhale logo

Saleswhale

Artificial Intelligence

Saleswhale is an automated sales assistant that follows up with your…

S17
Acquired
Honeydue logo

Honeydue

Fintech

The simplest way for couples to manage money, together

W18
Inactive
Atrium logo

Atrium

LegalTech

Modern law firm for startups powered by proprietary technology

W18
Inactive
Storyline logo

Storyline

B2B

Create Alexa Skills without coding

W20
Inactive
Milo logo

Milo

Artificial Intelligence

The Family AI - a copilot for parents to tackle the invisible load of…

S21
Inactive
Opkit logo

Opkit

SaaS

AI phone calls for the US healthcare industry

S21
Inactive
Squire.ai logo

Squire.ai

Artificial Intelligence

Never code alone.

W23
Acquired
Booth AI logo

Booth AI

Artificial Intelligence

Generative AI Photographer for E-Commerce

W24
“Parted Ways”
Delve logo

Delve

SaaS

AI that makes compliance effortless

Startups.RIP — Dead startups, alive ideas
PricingGot feedback? DM @oscrhong