Companies110
Active36%
Acquired or public35%
Inactive29%
Y Combinator's directory lists 110 companies in the Winter 2015 batch: 40 Active, 34 Acquired, 4 Public and 32 Inactive. 29% of Winter 2015 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 Winter 2015
| Company | What they do | Status | Team |
|---|---|---|---|
| Akido Labs | Rebuilding healthcare with AI at the core | Active | 1000 |
| Bankjoy | An end-to-end digital banking solution for banks and credit unions | Active | 60 |
| Bright | Sunrun for the developing world | Active | 100 |
| BuildScience | The operating system for commercial buildings. | Active | 1 |
| Cleanly | Laundry & Dry Cleaning delivered. | Active | 40 |
| Democracy Earth | Censorship resistant democracies. | Active | 2 |
| DemocracyOS | Online space for deliberation, policy making and democratic… | Active | 1 |
| eBrandvalue | Real-time Nielsen ratings for Brands.Accelerate marketing and product… | Active | 10 |
| Flip | Community-driven marketplace for sneakers. | Active | — |
| Giveffect | Fundraising, Volunteer and Donor Management SaaS for nonprofits. | Active | — |
| GiveMeTap | We produce & sell stainless steel water bottles that enables people… | Active | 1 |
| GrubMarket | AI-powered technology enabler and digital transformer of American… | Active | 4548 |
| Industrial Microbes | We design and build microbes to make chemicals greener at lower cost. | Active | 12 |
| Labdoor | Labdoor is building the trusted online drugstore. | Active | 11 |
| Level Frames | Software eats custom framing | Active | 5 |
| Magic | Extremely talented assistants for busy people | Active | 350 |
| Makrwatch | Scale new user acquisition with YouTube Creators | Active | 19 |
| Mashgin | Self-Checkout using Computer Vision. | Active | 150 |
| Meadow | Point of Sale and Compliance SaaS for Cannabis Dispensaries | Active | 14 |
| Mezmo | Observability platform to control all of your log data | Active | 172 |
| NimbleRx | On-demand prescription delivery. | Active | 130 |
| Numerion Labs | Artificial intelligence for drug discovery. | Active | 67 |
| Platzi | Turning company knowledge into expert teams | Active | 123 |
| Quantierra | Sourcing investment real estate | Active | 5 |
| Qventus | We automate operations for hospitals and health systems | Active | 230 |
| Razorpay | India's only full-stack financial solutions company for businesses. | Active | 2700 |
| ReadMe | Beautiful, personalized, interactive developer hubs | Active | 52 |
| Replika | Replika is an AI friend that you can talk to designed to make you… | Active | 28 |
| Resolve | Software to accelerate construction by finding issues in 3D BIM | Active | 10 |
| Sails Co. | Full-service web, mobile, & cloud studio providing professional… | Active | 4 |
| Shasqi | Targeting Cancer with Click Chemistry | Active | 28 |
| SIRUM | SIRUM is a “match.com” for unused medicine. We connect institutional… | Active | 15 |
| Tab | Revolutionising the way travellers discover, plan and book a trip | Active | 9 |
| Tara AI | Meet Tara AI, your new engineering efficiency co-pilot. | Active | 13 |
| TeamNote | Mobile Productivity(Slack for mobile workforces) | Active | 11 |
| Tempo | Live home fitness training powered by computer vision. | Active | 158 |
| The Human Utility | The Human Utility seeks to eliminate water service disconnections for… | Active | 2 |
| X-Zell | Early, pain-free cancer detection. | Active | 19 |
| Zeitview | Inspection software for renewable energy & sustainable infrastructure | Active | 200 |
| Zenflow | Medical device that provides a more effective, less invasive… | Active | 18 |
| Bizzy | Bizzy is omni-channel marketing for ecommerce businesses. | Acquired | 2 |
| Bluesmart | Bluesmart makes smart luggage powered by an app to empower people to… | Acquired | 51 |
| Bonfire | Bonfire is reimagining RFPs & bidding for gov procurement teams | Acquired | 95 |
| Chariot | The world's first private mass transit service providing a commuting… | Acquired | 501 |
| CyberFend | Cyberfend delivers robust, real-time web and mobile security by… | Acquired | 2 |
| Final | A credit card that drastically reduces payment fraud and gives… | Acquired | 11 |
| HigherMe | Helping restaurant employers find & hire better employees faster | Acquired | 45 |
| Lumi | Packaging for online brands. | Acquired | 67 |
| Mobydish | MobyDish, a tech-enabled service, allowing anyone to place a catering… | Acquired | 10 |
| Moltin | eCommerce building blocks through simple APIs for websites & apps.… | Acquired | 32 |
| NexTravel | NexTravel is a centralized travel booking platform that helps… | Acquired | 17 |
| Open Listings | A better way to buy a home | Acquired | 48 |
| Outbound | Create automated messages -- email, iOS/Android push, SMS and web… | Acquired | 2 |
| Pachyderm | Data Versioning, Data Pipelines, and Data Lineage | Acquired | 60 |
| Paperspace | Paperspace is a cloud platform for building and scaling AI… | Acquired | 50 |
| Pomello | Analytics software that helps companies measure organizational… | Acquired | 8 |
| Popular Pays | Software for collaborating with content creators and influencers | Acquired | 37 |
| Pretty Instant | Inventor of the first roaming-photo booth + pro photography platform | Acquired | 3 |
| Raven Tech | Our vision is to build the next generation of iOS or Android, to… | Acquired | 11 |
| Remix | We’re building a platform to empower cities to plan the best possible… | Acquired | 65 |
| Seed | Mobile banking for small business. | Acquired | 11 |
| Shift Labs | Makers of simple, affordable medical devices. Our award-winning… | Acquired | 6 |
| SigOpt | SigOpt is an Optimization-as-a-Service platform that seamlessly tunes… | Acquired | 23 |
| Smarking | Digitize $655B parking industry | Acquired | 17 |
| Smyte | Smyte stops bad actors on social networks and marketplaces. | Acquired | 11 |
| Spire Health | Remote patient monitoring for lung disease patients. | Acquired | 52 |
| Tech in Asia | Tech in Asia (YC W15) is the largest English-language technology… | Acquired | 70 |
| Valor Water Analytics | Valor Water Analytics delivers a SaaS platform to utilities to detect… | Acquired | 2 |
| Vanhawks | We are making the smart carbon fibre commuting bike and platform for… | Acquired | 11 |
| Vest | Bringing wider access to financial derivatives. | Acquired | 65 |
| WayUp | Marketplace for employers to recruit college students and recent grads | Acquired | 50 |
| WorkLife | WorkLife is a SaaS application that helps teams have more effective… | Acquired | 2 |
| YesGraph | YesGraph recommends exactly who a user should invite to an app. Our… | Acquired | 2 |
| Yhat | End-to-end data science lifecycle management platform. | Acquired | 17 |
| EquipmentShare | Cloud solutions for the construction industry. | Public | 5400 |
| GitLab | A complete DevOps platform delivered as a single application. | Public | 2000 |
| Lucira Health | Next generation infectious disease test kits | Public | 43 |
| Notable Labs | Personalized drug discovery for blood cancer. | Public | 40 |
| 20n | Using AI to predict biochemistry for manufacturing and therapeutics | Inactive | 2 |
| 3dot | Inactive | 2 | |
| Automate Ads | On a mission to programmatically automate, optimize, and unify your… | Inactive | 2 |
| Bagaveev Corporation | Launch small satellites | Inactive | 2 |
| Booktrope | Booktrope provides a software platform that makes it easy for… | Inactive | 51 |
| Cribspot | Tech-Enabled Real Estate Company (YC W15) | Inactive | 2 |
| Dabble | A synthetic photo studio for e-commerce | Inactive | 3 |
| Dealyze | Dealyze helps national retailers build exceptional customer and… | Inactive | 6 |
| Direct Match | Inactive | 11 | |
| Glassjar | Clean app for check writing | Inactive | 2 |
| GroupAhead | Improve communications with your group's own mobile app. | Inactive | 2 |
| Instavest | Inactive | 2 | |
| Kickpay | A platform to finance inventory for e-commerce companies. | Inactive | 2 |
| Lully | Lully is developing an under-the-mattress technology that precisely… | Inactive | 5 |
| Nextop | Nextop optimizes the path between your app and backend. Client… | Inactive | 2 |
| Nomiku | Wave our food in front of your Nomiku and have dinner for everyone… | Inactive | 11 |
| Omniref | Sticky notes for code. (We're building a community-powered,… | Inactive | 2 |
| Pakible | We make it insanely easy to design, price, and manufacture custom… | Inactive | 3 |
| Pigeonly | The affordable way to search, find & communicate with an incarcerated… | Inactive | 40 |
| Priime | Priime is a company dedicated to advancements in technology around… | Inactive | 3 |
| Rare Door | Empowering brick-and-mortar retailers to sell more and engage shoppers | Inactive | 2 |
| ReSchedule Med | We help medical residency programs create and manage their schedules,… | Inactive | — |
| Rescue Forensics | Actionable human trafficking intelligence | Inactive | — |
| Shift Messenger | Real-time communication solution for retail and restaurant employees. | Inactive | 2 |
| SparkGift | SparkGift makes it easy to send stocks and index funds as gifts to… | Inactive | 2 |
| Spoil | Spoil is gifting for the Snapchat generation. | Inactive | 2 |
| Standard Cyborg | Buid, test and deploy perception applications | Inactive | 9 |
| ThinAir | Intelligent data security for teams | Inactive | 11 |
| Transcriptic | The robotic cloud laboratory for the life sciences. | Inactive | 13 |
| Underground Cellar | Upgrading Your Wine Experience | Inactive | 26 |
| VetPronto | On demand veterinary house calls. | Inactive | 51 |
| Wink Health | The digital sleep clinic | Inactive | 2 |
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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