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YC W25 170 startups

YC W25 Startups

Every Y Combinator Winter 2025 company we currently index.

Last updated

2026-07-17

Hiring right now 2% 3 of 170

Open roles 40

Most-hired discipline Engineering

The Y Combinator W25 batch (Winter 2025) brought 170 tech startups into our index. This page lists every W25 company we currently track, with logos, taglines, and links straight to their own sites — no paywalled middleman. Notable W25 companies include AfterQuery, hud, 10x, a0.dev, and A1Zap by A1Base. Each profile surfaces team size, founding year, location, and open roles when their careers page is publicly scrapable. The W25 cohort skews toward AI / ML, Dev Tools, and Fintech — common patterns we see in this batch. Recurring tags across these companies: Artificial Intelligence, AI, B2B, SaaS, Generative AI. The directory's filter UI accepts any of them as a query. Geographically, the W25 batch we have leans toward San Francisco, New York City, and Unspecified, with the rest spread across remote-first teams and other hubs. 2 of these are currently flagged as trending based on momentum signals; and the listing refreshes whenever the scrape runs, so changes propagate without a manual edit.

Applied research lab curating data solutions for foundation model…

Artificial IntelligenceB2BData Labeling

Platform for building RL environments and evals

Reinforcement LearningAI

AI Sales Teams for Dental Practices

We make mobile apps using AI.

Artificial IntelligenceDeveloper ToolsGenerative AI

A1Zap by A1Base

The social network layer for AI apps

HardwareDesignAI

AI Agents that automate enterprise software processes

Reinforcement LearningEnterpriseAI

AI-driven exam prep

AI-Enhanced LearningArtificial IntelligenceEducation

The SOP Automation Platform

AI Copilot for Ambulance Agencies (EMS)

SaaSHealth TechDigital Health

We help software companies sell to government.

GovTechComplianceCybersecurity

An Collaborative, AI-native IDE for Hardware Engineers

Artificial Societies

We build networks of AI personas that simulate stakeholder opinions

Artificial IntelligenceMachine LearningSaaS

Open Source React.js Library for AI Chat

Developer ToolsGenerative AIChat

AI Browser Workforce for Operations Teams

Robotic Process AutomationHealth TechB2B

The world’s first AI energy developer

Solar PowerEnergyRenewable Energy

Be the Answer in AI Search - AI SEO across SEO, GEO & AEO

awen translates intent into exceptional visuals through conversation

Generative AISaaSCreator Economy

AI Workers for Manufacturing and Distribution

ManufacturingEnterprise SoftwareAutomation

Trade memecoins, perpetuals, and earn yield.

FintechCrypto / Web3Consumer Finance

Digital AI humans that model clothes for e-commerce brands.

Generative AIMachine LearningMarketing

AI estimating & detailing for Division 8 doors, frames & hardware

Discovering new pesticides with AI

Stablecoin API for global payments

Developer ToolsFintechCrypto / Web3

AI for accounting

Leading open-source web agent project with 50k stars in 3 months

Artificial IntelligenceOpen SourceAPI

Agent with a computer

Embedded Sandboxes for Agents

Your partner for hotel ownership data.

SaaSB2BProptech

Enterprise-grade AI support reps for call centers

Generative AISaaSB2B

We help companies win government funding with AI

Artificial IntelligenceGovTech

Protect your data and stop insider risk

Artificial IntelligenceCybersecurity

AI compliance co-pilot for regulated financial businesses

Artificial IntelligenceFintechCompliance

Voice AI teams for medicare agencies.

Health InsuranceTelecommunicationsConversational AI

How elite law firms do intake

Artificial IntelligenceB2BSales

Execute the best sales playbook in industry

SalesSales EnablementCRM

AI agents that convert and retain patients for digital clinics

Artificial IntelligenceRobotic Process AutomationHealth Tech

AI Accountant for Accounting Firms

We help law enforcement solve crime

Artificial IntelligenceGovTech

The LLM Eval and Observability Platform for AI Quality

Developer ToolsGenerative AIOpen Source

AI to monitor thousands of security cameras.

AI hiring platform powered by expert recruiters

Artificial IntelligenceSaaSRecruiting

AI agents built for insurance.

Artificial IntelligenceB2BLogistics

Connect your users to their apps

Developer ToolsB2BWorkflow Automation

Real-time AI translator for global sales and marketing

Artificial IntelligenceB2BSales

AI-Powered Hardware System Design Software

Dartboard Energy

AI Analyst for Electricity Markets

Energy StorageB2BAnalytics

Agents for Accelerated Clinical Trial Design

The AI Coworker in Chrome

Artificial IntelligenceProductivityConsumer Products

Character.AI with real time video avatars

Generative AIConsumerSocial

AI Teacher Assistant for Grading Essays

AI-Enhanced LearningArtificial IntelligenceEducation

Automated revenue cycle management, starting with dentists

AI for air traffic control

AI agents and unified data layer for revenue teams

Excellence Learning

AI tutor starting with maths and science

AI-Enhanced LearningEducationSaaS

Exin Therapeutics

AI drug discovery platform for neurotherapeutics

NeurotechnologyBiotechTherapeutics

Building agents that reads logs and fixes issues on your behalf.

Artificial IntelligenceInfrastructure

The AI investment analyst

DocumentsFintechFinance

Financial research platform for investment firms

The AI Voice agents for hotels

Forge Automation

Software Enabled CNC Parts Supplier

Hard TechHardwareRobotics

#1 AI Platform for Outbound Sales

Simplifying Collaboration for Healthcare Organizations & Professionals

SaaSHealth TechB2B

Fast and Data-Driven Immigration Platform

Artificial IntelligenceB2BLegal

General Trajectory

AI for the physical world

AI Healthcare Provider Credentialing Software

Artificial IntelligenceHealth TechHealthcare

AI-native commercial insurance brokerage

FintechInsuranceAI

AI-powered Patient Identification for Clinical Trials

Voice AI for Home Services

Hudson — Fintech

Global B2B Stablecoin Processor

Developer ToolsPaymentsB2B

Building lunar landers

Hard TechSpace Exploration

Inversion Semiconductor

Manufacturing the most powerful chips, 15x faster

HardwareManufacturingSemiconductors

infra for computer use agents

AI native consumer lending platform for underserved Americans

FintechConsumerNeobank

Stablecoin neobank for emerging markets

FintechEmerging MarketsCryptocurrency

AI voice and texting agents

Artificial IntelligenceB2BConversational AI

Headless Data Team

Artificial IntelligenceB2BAnalytics

interactive video models

Reimagining how Machines Learn

AIOpsDeveloper ToolsSaaS

AI Agents for Complex Engineering Projects

AI for Home Services

Artificial IntelligenceHome Services

Maritime Fusion

Fusion reactors for ships

Fusion EnergyHard TechEnergy

The Javascript framework for building AI agents, from the Gatsby devs

Artificial IntelligenceDeveloper ToolsOpen Source

Foundation models to automate x-ray analysis for radiologists

Artificial IntelligenceMachine LearningComputer Vision

Building the open source smart glasses operating system.

Artificial IntelligenceHardwareConsumer

AI Quote and Order Automation for Distributors & Manufacturers

Eliminating accrual spreadsheets for faster month-end

FinOpsFintechFinance

Misprint is building Robinhood for Pokemon cards

MarketplaceConsumer

AI tutors for exam prep

AI-Enhanced LearningEducationeLearning

Agentic video editing

High Quality Multilingual Training Data for AI Models

Artificial IntelligenceMachine LearningAI

Frontier AI research to advance game development

Machine LearningB2BData Engineering

The digital home for your personal memories that grows with you

Artificial IntelligenceSaaSB2B

Curated stories, every day

ProductivityTeam CollaborationAI

Cursor for Designers

Artificial IntelligenceDeveloper ToolsDesign

The AI Front Door For Law Firms

Operand — B2B

AI performance monitoring for factory workers

Hard TechComputer VisionManufacturing

Orbital Operations

High Thrust Space Vehicles for Satellite Defense

Reinforcement Learning (RL) for AI Agents

Artificial IntelligenceMachine LearningReinforcement Learning

Customer Context for Agents

Artificial IntelligenceB2BAPI

Hire amazing engineers by seeing how they use AI

Artificial IntelligenceB2BRecruiting

Navigate any set of data - no matter how large - in minutes.

Artificial IntelligenceLegalTechData Science

Founder led hiring for London startups

SaaSAI Assistant

The AI Growth Engine for Industrials

The first healthcare GTM data platform

SalesSales EnablementDigital Health

Robots that repair roads

More 𝛼, less latency: exchange and HFT on one chip.

In-call AI teleprompter that helps reps close enterprise deals

SalesSales Enablement

AI co-pilot for building plan review and building code compliance

Generative AIGovTechComputer Vision

Where your life context becomes understanding.

Artificial IntelligenceHardwareAugmented Reality

Real-time AI Voice Translation for Developers

Artificial IntelligenceTelecommunications

Regulated derivatives exchange

Artificial IntelligenceFinOpsFintech

The agentic AI Word editor

Artificial IntelligenceSaaSConsumer

Making humanoids dexterous enough to thread a needle

Artificial IntelligenceRobotics

An AI teammate that automatically updates your customer-facing docs

Artificial IntelligenceDeveloper ToolsGenerative AI

AI documentation engineer – test & autoimprove stale product docs

Artificial IntelligenceDeveloper ToolsB2B

Financial OS for Modern Fleets

FintechLogisticsTransportation

AI-Powered Company OS

Enterprise SoftwareAIAI Assistant

Red Barn Robotics

A Roomba for weeds on a farm.

Reusable Satellites

Hard TechManufacturingAerospace

We turn complex API integrations into drop‑in full‑stack libraries

Developer ToolsAPIInfrastructure

A vintage marketplace curated by AI

Revise Robotics

Automating refurbishment of $1T in consumer electronics

Robotic Process AutomationClimateTechElectronics

AI Employees for Hotels

Test, monitor, and improve your voice agents

AnalyticsAIConversational AI

The AI Maximalist Software Holding Company

AI powered operating system for distributors and OEMs

Computational Law

AI-powered student information system for K-12 schools

Artificial IntelligenceEducationWorkflow Automation

We turn traditional companies into AI companies

Artificial IntelligenceGenerative AISaaS

Custom AI experts that map what one AI can't

SaaSConsumer ProductsConversational AI

The AI Data Team

SaaSB2BData Science

AI agents for CX teams, starting with training and QA.

Autonomous patrol-boats for National Security

AI-native ATS/CRM for recruiting firms

The AI Secretary for Email and Calendar.

Next-Generation Power Electronics

HardwareElectric VehiclesElectronics

Autonomous Electrical Engineering

AIOpsElectronicsAI

Software that maps your infrastructure. Open core alternative to Wiz

Zero code network tracer

AI that fixes enterprise glue

Open SourceAPIEnterprise

Chat with AI Characters

Artificial IntelligenceConsumerEntertainment

Tally — Fintech

Agent Teams for Professionals

FinanceWorkflow AutomationLegal

Book and manage all of your golf tee times in one place.

Sports TechConsumerBooking

Risk Decisioning Platform for Banks

FintechFinanceB2B

Vercel For GPUs

AIOpsDeveloper ToolsSaaS

AI Agents for Audit

Generative AIAI

AI Powered Affordable Housing Eligibility

GovTechReal EstateHousing

AI for insurance verification & billing at dental clinics

Artificial IntelligenceHealth TechHealthcare

Reasoning Fine-Tuning

Developer ToolsGenerative AIReinforcement Learning

AI-powered research desk for hedge funds

Artificial IntelligenceFinanceB2B

AI agents for global trade compliance

Generative AIB2BCompliance

A foundation model for physics.

AWS for AI Agents

Artificial IntelligenceDeveloper ToolsGenerative AI

Lovable for Chrome Plugins

Artificial IntelligenceConsumerAI

Uncommon Therapeutics

A Disease Focused Biotech, Building Multiple Billion Dollar Drugs

Gene TherapyCRISPRBiotechnology

AI Platform for Commercial Insurance Brokerages

DocumentsInsuranceCRM

Outbound Sequencing Infrastructure for Startups

SaaSAnalyticsSales

AI Copilot that automates admin work for veterinary professionals

Artificial IntelligenceSaaSB2B

Vocality Health

Voice AI for medical language translation

Artificial IntelligenceHealthcareHealth & Wellness

Waypoint Transit

We automate urban planning so cities can build cheaper and faster.

AI to understand engineering work

AEO/GEO for E-Commerce and Retail

Artificial IntelligenceGenerative AIE-commerce

Claude Code plugin that reduces token consumption and cost by 50%

Artificial IntelligenceSaaSAI

The OS for hospital workforce management

Artificial IntelligenceHealth TechHealthcare

Artificial Specialized Intelligence

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Frequently asked questions

What is the YC W25 batch?

W25 is the Y Combinator batch code for the Winter 2025 cohort. Companies joining a YC batch go through a 3-month program in California and demo their product at the end. techstartupslist.com indexes 170 tech startups from this batch.

How many companies are in YC W25?

Our index currently tracks 170 active tech startups from the YC W25 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 W25?

Among the W25 companies indexed here: AfterQuery, hud, and 10x, and 167 more on this page. Click any profile for category, team size, founding year, and open roles.

Where can I find open jobs at YC W25 startups?

Open roles from indexed W25 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 W25 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.