Y Combinator's directory lists 52 companies in the Summer 2013 batch: 10 Active, 19 Acquired, 1 Public and 22 Inactive. 42% of Summer 2013 is listed Inactive, against 23% across YC batches at least two years old, so this batch has lost more companies than most.
ActiveAcquiredPublicInactive
Statuses are Y Combinator's own listing in its public company directory, read on the date shown. YC's directory can drop companies altogether, so the Inactive counts here are a floor, not a full count of companies that stopped. Acquired and Public are as YC lists them; neither says anything about the price or the outcome for founders.
Every company in Summer 2013
| Company | What they do | Status | Team |
|---|---|---|---|
| 7cups | 7 Cups is an emotional support service that matches up people that… | Active | 11 |
| Asseta | Marketplace for industrial spare parts and capital equipment. | Active | 4 |
| Cratejoy | Cratejoy is the platform for subscriptions | Active | 51 |
| EasyPost | The shipping infrastructure of the internet. | Active | 51 |
| Estimote, Inc. | Location intelligence platform | Active | 40 |
| Lob | Lob is the only automation platform that transforms direct mail into… | Active | 150 |
| Panorama Education | Improving education for every student. | Active | 350 |
| Reebee | Flyer app. | Active | 11 |
| True Link | Financial Services for Financial Caregivers. | Active | 100 |
| Webflow | Professional website design and publishing platform. | Active | 600 |
| Apptimize | Apptimize lets mobile teams innovate faster to create an amazing user… | Acquired | 50 |
| Arcus | Payment-as-a-service that helps any business launch payment solutions | Acquired | 100 |
| BloomThat | Uber for Flowers. | Acquired | 11 |
| Bop.fm | Canonical permalinks for songs. | Acquired | 2 |
| Casetext | We make the world's laws free and understandable. | Acquired | 50 |
| CoreOS | Open source tools of modern distributed systems. | Acquired | 150 |
| Datarank | Making sense of social data. (Acquired by SimplyMeasured.) | Acquired | 11 |
| Echo Locker | Android lock screen | Acquired | 2 |
| Hackermeter | Replacing resume screening with code challenges. | Acquired | 11 |
| Layer By Layer | Acquired by MakerBot in February 2014. A marketplace for 3D… | Acquired | 2 |
| Lumoid | We are a try before you buy service for consumer electronics. | Acquired | 11 |
| RealCrowd | Direct real estate investing marketplace | Acquired | 9 |
| Senic | Simple Controls for Sonos, Philips Hue and other Smart Home products | Acquired | 16 |
| SimpleLegal | Legal Operations for corporate legal teams. | Acquired | 60 |
| SpoonRocket | Meals Delivered in 10 Minutes | Acquired | 51 |
| Standard Treasury | Banking APIs; acquired by Silicon Valley Bank in August 2015 | Acquired | — |
| StatusPage | The best way to communicate with users around downtime. | Acquired | — |
| URX | Mobile ads that users like. Acquired by Pinterest in May 2016. | Acquired | 11 |
| Weilos | Weight loss coaching. | Acquired | 11 |
| DoorDash | Restaurant delivery. | Public | 8600 |
| Amulyte | Remote monitoring & activity tracking system for seniors. | Inactive | 2 |
| Audobox | Audobox is a developer and user friendly tool for in-app feedback. | Inactive | — |
| Butter Systems | Replacing the paper restaurant menu with an interactive experience at… | Inactive | 2 |
| Buttercoin | Bitcoin Marketplace | Inactive | 11 |
| Crowdery | [Now Clara, YC S14- claralabs.com] | Inactive | 2 |
| FanHero | Inactive | 1 | |
| Floobits | Real-time collaborative editing in the browser with support for… | Inactive | 2 |
| Glio | Amazon Marketplace for Latin America | Inactive | 2 |
| GoComm | Mobile communications platform for teams working on live events | Inactive | 2 |
| Graft Concepts | Graft Concepts makes unique iPhone cases and other mobile accessories | Inactive | 2 |
| Hum | A chat program that integrates with email, with presence. | Inactive | 11 |
| Ixiplay | Engaging, expressive & Android hackable robot buddy for playful… | Inactive | 2 |
| Kivo | Git for Documents | Inactive | 2 |
| Le Tote | Subscription service for women's apparel & accessories. | Inactive | 201 |
| LocalOn | Web marketing for SMBs & merchants associations. | Inactive | 2 |
| Meta | Augmented reality glasses. | Inactive | 11 |
| One Month | One Month's affordable online bootcamps teach people how to code in… | Inactive | 1 |
| SoundFocus | We are giving you 20/20 hearing when listening to the devices you… | Inactive | 2 |
| StackMachine | Instant sandboxed server environments | Inactive | 2 |
| Teleborder | Dashboard for companies to manage immigration for their employees. | Inactive | 11 |
| Watchsend | Videos of your iOS apps | Inactive | 2 |
| WebCake | Marketing people modify site. | Inactive | — |
How this is measured
Measured 2026-09-26 from Y Combinator's company directory. Team size is the number YC lists for the company, where it lists one. Survival here means listed Active; Acquired and Public are shown separately because YC's listing does not say whether an acquisition was a good outcome.
All batchesShut-down companies
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