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YC W15 78 startups

YC W15 Startups

Every Y Combinator Winter 2015 company we currently index.

Last updated

2026-07-17

Hiring right now 8% 6 of 78

Open roles 203

Most-hired discipline Engineering

The Y Combinator W15 batch (Winter 2015) brought 78 tech startups into our index. This page lists every W15 company we currently track, with logos, taglines, and links straight to their own sites — no paywalled middleman. Notable W15 companies include GitLab, Akido Labs, Bankjoy, Bizzy, and Bluesmart. Each profile surfaces team size, founding year, location, and open roles when their careers page is publicly scrapable. The W15 cohort skews toward Consumer, Healthcare, and Dev Tools — common patterns we see in this batch. Recurring tags across these companies: SaaS, Artificial Intelligence, AI, Fintech, Marketplace. The directory's filter UI accepts any of them as a query. Geographically, the W15 batch we have leans toward San Francisco, New York, and Los Angeles, with the rest spread across remote-first teams and other hubs. 1 of these is currently flagged as trending based on momentum signals; and the listing refreshes whenever the scrape runs, so changes propagate without a manual edit.

A complete DevOps platform delivered as a single application.

Developer ToolsDevSecOpsOpen Source

Rebuilding healthcare with AI at the core

Artificial IntelligenceDeep LearningHealthcare

An end-to-end digital banking solution for banks and credit unions

Banking as a ServiceConversational BankingFintech

Bizzy is omni-channel marketing for ecommerce businesses.

E-CommerceMarketing

Bluesmart makes smart luggage powered by an app to empower people to…

Bonfire is reimagining RFPs & bidding for gov procurement teams

SaaSGovTechProcurement

Sunrun for the developing world

FintechSolar PowerClimate

The operating system for commercial buildings.

SustainabilityProptechEnergy

The world's first private mass transit service providing a commuting…

Laundry & Dry Cleaning delivered.

DeliveryLogistics

Cyberfend delivers robust, real-time web and mobile security by…

CybersecurityFraud Prevention

Democracy Earth

Censorship resistant democracies.

Crypto / Web3Nonprofit

Online space for deliberation, policy making and democratic…

Civic TechGovTech

Real-time Nielsen ratings for Brands.Accelerate marketing and product…

AnalyticsSocial

Cloud solutions for the construction industry.

A credit card that drastically reduces payment fraud and gives…

PaymentsSecurity

Community-driven marketplace for sneakers.

Fundraising, Volunteer and Donor Management SaaS for nonprofits.

SaaSNonprofitB2B

We produce & sell stainless steel water bottles that enables people…

AI-powered technology enabler and digital transformer of American…

E-commerceSupply ChainFood Tech

Helping restaurant employers find & hire better employees faster

SaaSHR TechRestaurant Tech

Industrial Microbes

We design and build microbes to make chemicals greener at lower cost.

Carbon Capture and RemovalBioplasticClimate

Labdoor is building the trusted online drugstore.

MarketplaceConsumer Health Services

Software eats custom framing

Next generation infectious disease test kits

Health TechDiagnostics

Packaging for online brands.

E-CommerceSupply Chain

Extremely talented assistants for busy people

B2BAI Assistant

Scale new user acquisition with YouTube Creators

MarketplaceB2BSocial Media

Self-Checkout using Computer Vision.

Artificial IntelligenceCashierless CheckoutDeep Learning

Point of Sale and Compliance SaaS for Cannabis Dispensaries

Observability platform to control all of your log data

Developer ToolsDevSecOpsSaaS

MobyDish, a tech-enabled service, allowing anyone to place a catering…

Food Service Robots & MachinesFood Tech

eCommerce building blocks through simple APIs for websites & apps.…

PaymentsE-commerceAPI

NexTravel is a centralized travel booking platform that helps…

On-demand prescription delivery.

Personalized drug discovery for blood cancer.

BiotechDrug discoveryOncology

Artificial intelligence for drug discovery.

AI-powered Drug DiscoveryDeep LearningBiotech

A better way to buy a home

MarketplaceReal Estate

Create automated messages -- email, iOS/Android push, SMS and web…

MessagingAnalyticsNotifications

Data Versioning, Data Pipelines, and Data Lineage

Developer ToolsMachine LearningData Science

Paperspace is a cloud platform for building and scaling AI…

Machine LearningAI

Turning company knowledge into expert teams

AI-Enhanced LearningEducationeLearning

Analytics software that helps companies measure organizational…

Machine LearningSaaS

Software for collaborating with content creators and influencers

Inventor of the first roaming-photo booth + pro photography platform

Sourcing investment real estate

Real EstateInvesting

We automate operations for hospitals and health systems

Artificial IntelligenceSaaSDigital Health

Our vision is to build the next generation of iOS or Android, to…

India's only full-stack financial solutions company for businesses.

Banking as a ServiceFintechPayments

Beautiful, personalized, interactive developer hubs

Developer ToolsDesign Tools

We’re building a platform to empower cities to plan the best possible…

SaaSTransportationMobility

Replika is an AI friend that you can talk to designed to make you…

Mental HealthConversational AI

Software to accelerate construction by finding issues in 3D BIM

Virtual RealityConstructionCollaboration

Full-service web, mobile, & cloud studio providing professional…

Open SourceWeb DevelopmentCloud Computing

Mobile banking for small business.

Targeting Cancer with Click Chemistry

BiotechTherapeutics

Makers of simple, affordable medical devices. Our award-winning…

HardwareMedical Devices

SigOpt is an Optimization-as-a-Service platform that seamlessly tunes…

Machine LearningSaaSAI

SIRUM is a “match.com” for unused medicine. We connect institutional…

Consumer Health ServicesNonprofit

Digitize $655B parking industry

Smyte stops bad actors on social networks and marketplaces.

SecurityFraud Detection

Remote patient monitoring for lung disease patients.

TelehealthMedical DevicesDigital Health

Revolutionising the way travellers discover, plan and book a trip

FintechMarketplaceTravel

Meet Tara AI, your new engineering efficiency co-pilot.

Artificial IntelligenceGenerative AISaaS

Mobile Productivity(Slack for mobile workforces)

Tech in Asia (YC W15) is the largest English-language technology…

Live home fitness training powered by computer vision.

Machine LearningConsumer Health Services

The Human Utility

The Human Utility seeks to eliminate water service disconnections for…

Valor Water Analytics

Valor Water Analytics delivers a SaaS platform to utilities to detect…

We are making the smart carbon fibre commuting bike and platform for…

IoTTransportation

Bringing wider access to financial derivatives.

FintechInvesting

Marketplace for employers to recruit college students and recent grads

WorkLife is a SaaS application that helps teams have more effective…

SaaSProductivityCollaboration

Early, pain-free cancer detection.

Medical Devices

YesGraph recommends exactly who a user should invite to an app. Our…

SocialReferrals

End-to-end data science lifecycle management platform.

Artificial IntelligenceMachine LearningEnterprise

Inspection software for renewable energy & sustainable infrastructure

Artificial IntelligenceDronesB2B

Medical device that provides a more effective, less invasive…

Medical Devices

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Frequently asked questions

What is the YC W15 batch?

W15 is the Y Combinator batch code for the Winter 2015 cohort. Companies joining a YC batch go through a 3-month program in California and demo their product at the end. techstartupslist.com indexes 78 tech startups from this batch.

How many companies are in YC W15?

Our index currently tracks 78 active tech startups from the YC W15 batch. New companies appear here automatically when our daily scraper finds them; companies that shut down are flagged inactive and hidden from listings.

Which companies graduated from YC W15?

Among the W15 companies indexed here: GitLab, Akido Labs, and Bankjoy, and 75 more on this page. Click any profile for category, team size, founding year, and open roles.

Where can I find open jobs at YC W15 startups?

Open roles from indexed W15 companies appear on our /jobs page, aggregated alongside roles from other indexed startups. Each role links directly to the company's official application page.

How often is the YC W15 page updated?

Automated scrapers refresh this page daily. The last index update was 2026-07-17. Inactive companies fall out of the count automatically — we don't keep dead listings live.