Questdquestd

YC Winter 2023 (W23)

274 companies Y Combinator lists for Winter 2023, with what each one builds. 59.8% of the tagged companies are AI, up from 43% in S22.

Companies
274
AI share
59.8%
Top sector
Engineering, Product and Design
45 companies
Second
Infrastructure
15 companies

What’s in Winter 2023

Winter 2023 lists 274 companies so far (S22 had 233). The biggest themes by YC's tags are Developer Tools (49), Fintech (34), Open Source (21), AI Assistant (16) and Analytics (15). The largest sectors are Engineering, Product and Design, Infrastructure, Operations and Finance and Accounting. 23% are based outside the US.

  • Developer Tools · 49
  • Fintech · 34
  • Open Source · 21
  • AI Assistant · 16
  • Analytics · 15

See what YC asked founders to build · Breakout themes across batches

All Winter 2023 companies

274 companies

  • 1stCollab

    Performance-Optimized Influencer Marketing at Scale

    AI
    Marketing11San Francisco, CA, USA
  • 222

    the AI social facilitator for offline human to human interactions

    AI
    Consumer28New York City, NY, USA
  • Adri AI

    Your AI Partner for SAP Development

    AI
    B2B3San Francisco, CA, USA
  • Adventris Pharmaceuticals

    Adventris makes cancer vaccines

    Drug Discovery and Delivery7Baltimore, MD, USA
  • Alaan

    Ai-native finance platform for the Middle East

    Payments250Dubai, Dubai, United Arab Emirates
  • Alloy

    AI prototyping tool for product managers

    Productivity5Sydney, NSW, Australia
  • Alphawatch AI

    Relationship Coverage for Deal Teams

    AI
    Fintech8San Francisco, CA, USA
  • Aqueduct

    Create, edit, and share procedural material graphs.

    AI
    B2B1Pittsburgh, PA, USA
  • Ariglad

    Knowledge base maintenance on auto-pilot

    AI
    Operations4Vancouver, BC, Canada
  • Arroyo

    Cloud-native stream processing

    Infrastructure2San Francisco, CA, USAAcquired
  • Atmeto

    Building a frontier world model for power

    AI
    Energy2Los Angeles, CA, USA
  • Automat

    Agentic automation that understands context, recovers, and improves.

    AI
    OperationsSan Francisco, CA, USA
  • Avoca

    AI-powered Sales Agent for Service-Based Industries

    B2B85New York City, NY, USA
  • Backdrop

    Building your AI coworkers for any team, workflow, or industry.

    AI
    B2B2Seattle, WA, USA
  • Benchmark

    Decision infrastructure for investment firms

    AI
    Finance and Accounting7New York City, NY, USAAcquired
  • Berry

    Scale customer success and onboarding with AI

    AI
    Operations8San Francisco, CA, USA
  • Bluebirds

    Automate outbound with signals

    AI
    Sales6San Francisco, CA, USAAcquired
  • Bluedot

    Bluedot is a single payment platform for EV drivers and fleets.

    Fintech15San Francisco, CA, USA
  • Blyss

    End-to-end encrypted AI.

    AI
    Security2San Francisco, CA, USAInactive
  • Booth AI

    Generative AI Photographer for E-Commerce

    AI
    Retail3San Francisco, CA, USAAcquired
  • Boundary

    The programming language for AI

    AI
    B2B10Seattle, WA, USA
  • Brewit

    Conversational data analytics for every team

    AI
    Analytics4San Francisco, CA, USAAcquired
  • BuildJet

    High-performance computing cloud

    Engineering, Product and Design2Berlin, Berlin, Germany
  • Bujeti

    The Finance Control Centre for African Businesses

    Finance and Accounting35Paris, Île-de-France, France
Summer 2022Summer 2023

Source: Y Combinator’s public company directory. Each company links to its YC profile. See how we count and what YC asked founders to build.

Frequently asked questions

How many companies are in YC Winter 2023?

Y Combinator's public directory lists 274 companies for Winter 2023 (W23), compared with 233 in Summer 2022. YC adds companies as they launch, so a recent batch can still grow.

What kind of startups are in YC Winter 2023?

The most common themes by YC's own tags are Developer Tools (49), Fintech (34), Open Source (21), AI Assistant (16) and Analytics (15). The largest sectors are Engineering, Product and Design, Infrastructure, Operations and Finance and Accounting. 59.8% of the companies YC has tagged are AI.

Where are YC Winter 2023 companies based?

23% of Winter 2023 companies with a listed location are based outside the US.