Questdquestd

YC Fall 2025 (F25)

145 companies Y Combinator lists for Fall 2025, with what each one builds. 80.5% of the tagged companies are AI, down from 85.7% in S25.

Companies
145
AI share
80.5%
Top sector
Engineering, Product and Design
22 companies
Second
Manufacturing and Robotics
10 companies

What’s in Fall 2025

Fall 2025 lists 145 companies so far (S25 had 166). The biggest themes by YC's tags are Developer Tools (14), AI Assistant (10), Robotics (9), Health Tech (7) and Infrastructure (7). The largest sectors are Engineering, Product and Design, Manufacturing and Robotics, Finance and Accounting and Infrastructure. 14.4% are based outside the US.

  • Developer Tools · 14
  • AI Assistant · 10
  • Robotics · 9
  • Health Tech · 7
  • Infrastructure · 7

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

All Fall 2025 companies

145 companies

  • Absurd

    The production canvas for AI film teams

    AI
    Marketing10Los Angeles, CA, USA
  • AirCaps

    The AI copilot for in-person conversations.

    Consumer5San Francisco, CA, USA
  • Alder

    AI employees for finance, starting with accounts receivable.

    AI
    Finance and Accounting2San Francisco, CA, USA
  • Aleph Lab

    AI language buddy in the games kids love

    AI
    Consumer2San Francisco, CA, USA
  • Allus AI

    Transforming manufacturing with our next-gen Vision Foundation Model

    AI
    Manufacturing and Robotics6Atlanta, GA, USA
  • Amera

    Automating claims processing workflows for health insurance payers.

    Insurance12New York City, NY, USA
  • Amika

    Infra to build your own software factory

    AI
    Infrastructure2New York City, NY, USA
  • AnswerThis

    End-to-end workspace to accelerate scientific discovery

    Consumer6San Francisco, CA, USA
  • Antigen

    Continuous offensive security for the enterprise.

    AI
    Engineering, Product and Design5San Francisco, CA, USA
  • Anto Biosciences

    A Foundation Model for Microbial Communities.

    AI
    Healthcare4San Francisco, CA, USA
  • Aside

    The browser built to do real work for you

    AI
    Consumer8San Francisco, CA, USA
  • Aspect

    Intelligent media storage for creative teams.

    Engineering, Product and Design3New York City, NY, USA
  • AtlasGrid

    Accelerate Product Iteration

    Engineering, Product and Design6San Francisco, CA, USA
  • Automax.ai

    AI native real-estate appraisal firm

    Housing and Real Estate4San Francisco, CA, USA
  • Autonomous Technologies Group

    Superintelligent financial advisor

    AI
    Fintech8New York City, NY, USA
  • Axial

    Accelerated Physics Kernels for Computational Engineering

    AI
    Manufacturing and Robotics1San Francisco, CA, USA
  • Bluma

    Canva for short-form video ads

    Marketing2San Francisco, CA, USA
  • Bolna AI

    Voice AI to enable India's next billion

    AI
    B2B21Bengaluru, KA, India
  • Boom AI

    AI agents that recover lost revenue through real conversations.

    AI
    B2B3Mexico City, CDMX, Mexico
  • Bravi

    AI operating system for home improvement manufacturers

    AI
    B2B8New York City, NY, USA
  • Brickanta

    Agentic AI for Society Builders

    AI
    Infrastructure25Stockholm, Stockholm County, Sweden
  • Brickwise

    AI property manager for landlords and estate agents

    Housing and Real Estate12London, England, United Kingdom
  • Bron

    TikTok for Sports Betting

    AI
    Consumer2San Francisco, CA, USA
  • Caddy

    Your Personal AI for everyday work. Lives in your texts.

    AI
    Engineering, Product and Design5New York City, NY, USA

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 Fall 2025?

Y Combinator's public directory lists 145 companies for Fall 2025 (F25), compared with 166 in Summer 2025. YC adds companies as they launch, so a recent batch can still grow.

What kind of startups are in YC Fall 2025?

The most common themes by YC's own tags are Developer Tools (14), AI Assistant (10), Robotics (9), Health Tech (7) and Infrastructure (7). The largest sectors are Engineering, Product and Design, Manufacturing and Robotics, Finance and Accounting and Infrastructure. 80.5% of the companies YC has tagged are AI.

Where are YC Fall 2025 companies based?

14.4% of Fall 2025 companies with a listed location are based outside the US.