Browse 6,302+ YC-backed startups across 48 batches. Search by batch, industry, status, and location. The most complete Y Combinator company database available.
Track YC companies from Demo Day to IPO. Access founder contacts, team size data, and industry classification for every YC startup.
Showing 100 of 6,302+ Y Combinator startups. Visit the full database for search and filters.
| Company | Batch |
|---|---|
10 10x Science The AI-native platform for next-generation protein characterization. | W26 |
1C 1code (21st.dev) Orchestration layer for coding agents | W26 |
21 21st UI building blocks for the agentic internet | W26 |
AE Aemon The Forward-Deployed AI Research Engineer | W26 |
AG Agentic Fabriq The control plane for AI agents. | W26 |
AL Alt-X Building the best venue for private markets exposure. | W26 |
AP Approxima Your software should build itself. | W26 |
AR Arcline Startup legal work handled by elite lawyers & same-day turnaround | W26 |
AR ARC Prize Foundation AI benchmarks that measure general intelligence and inspire new ideas | W26 |
AR Arzule AI for B2B Partnerships | W26 |
AS Ashr Automated Multi-Modal Testing for Agents | W26 |
AS Asimov Real-world human movement data for humanoid robots | W26 |
AU Aurorin CAD Claude code for Mechanical Engineers | W26 |
AU AutoSitu The AI operating system for the built world | W26 |
AU Autumn AI Stalk your prospects at scale. | W26 |
AV Avoice Harvey for Architecture | W26 |
AX AxionOrbital Space Foundation models for 24/7 Earth Observation | W26 |
BA Balance Full-Stack AI Accounting | W26 |
BE Beacon Health AI Agents for Primary Care | W26 |
BE Beacon Health AI Employees for Primary Care | W26 |
BE BeeSafe AI Frontier AI Defenses for Social Engineering Attacks | W26 |
BE Beyond Reach Labs Space solar arrays that grow to the size of a football field in orbit | W26 |
BE Beyond Reach Labs Space solar arrays that grow to the size of a football field in orbit | W26 |
BI Bidflow AI Takeoffs for Electrical | W26 |
BO Booko Dynamically pricing the whole economy. | W26 |
BU Bubble Lab Operating system for premium professional communities | W26 |
BU Burt Easily fine tune and deploy specialized models | W26 |
BU Button Computer The tiny computer built for voice AI. | W26 |
BY Byteport Global upload acceleration for 1GB-100TB files. | W26 |
BY Byteport Global upload acceleration for 1GB-100TB files. | W26 |
CA Cajal Scaling formal verification to accelerate scientific discovery | W26 |
CA Canary The first AI QA engineer that understands your code | W26 |
CA Canary The first AI QA engineer that understands your codebase | W26 |
CA Captain Self-tuning file search for AI agents | W26 |
CA Cardboard Agentic video editor | W26 |
CA Caretta Realtime AI for Sales Calls | W26 |
CA Caretta Realtime AI for Sales Calls | W26 |
CA Cascade Distilling Proprietary Intelligence | W26 |
CA CatchBack Cards The most thrilling way to create and rip digital collectible packs | W26 |
CE CellType The agentic drug company. We simulate human biology. | W26 |
CE CellType The agentic drug company. We simulate human biology. | W26 |
CH Chamber The AIOps Agent for ML Teams | W26 |
CH Chamber Autopiloting your AI infrastructure | W26 |
CH Chasi AI Revenue Engine for the Equipment Industry | W26 |
CL ClaimGlide AI automated prior-auths for private medical practices | W26 |
CO CodeWisp Anyone can create real games with AI | W26 |
CO Coevolved Agents for Mortgage Origination | W26 |
CO Cofia AI automations that implement themselves | W26 |
CO Compresr LLM context compression for better accuracy | W26 |
CO Condor Energy Energy system enabling reliable, cheap and sustainable electricity… | W26 |
CO Condor Energy Software for enterprise energy procurement. | W26 |
CO Confluence Labs AI models that learn from experience | W26 |
CO Congruent AI native radars for self-driving cars | W26 |
CO Constellation Space AI for space mission assurance. | W26 |
CO Constellation Space AI operating system for mega-scale satellite networks. | W26 |
CO Copperlane Agentic Mortgage Origination | W26 |
CO Corelayer AI on-call engineer that debugs using data | W26 |
CO Corelayer AI production engineer for regulated industries | W26 |
CO Corvera The context layer for AI-native CPG brands | W26 |
CO Corvera Fully autonomous operations for CPG brands | W26 |
CR Crosslayer Labs Protect, monitor and defend your Internet presence | W26 |
CR Crosslayer Labs Protect, monitor and defend your Internet presence | W26 |
CR Crow Let users control your app through chat | W26 |
CU Cumulus Labs The Fastest Multimodal Inference OS | W26 |
DA DAIVIN! Tankless Dive Gear - Breath Autonomy at Sea, Land & Space | W26 |
DA DAIVIN! Tankless Dive Gear - Breath Autonomy at Sea, Land & Space | W26 |
/D /dev/fast /dev/fast is the AI-native code forge | W26 |
DI Didit Infrastructure for identity and fraud. | W26 |
DI Ditto Biosciences Evolutionary therapies for autoimmune disease | W26 |
DI Ditto Biosciences Evolutionary intelligence for autoimmune disease | W26 |
DO Docura Health AI-Native Med-Legal Firm | W26 |
DR DroneTector Technology to detect and track hostile drones | W26 |
EI EigenPal AI Document Workflows for Enterprises | W26 |
EI EigenPal AI Document Workflows for Enterprises | W26 |
EM Emdash Open-source Agentic Development Environment | W26 |
EN End Close AI powered reconciliation for high-volume payments companies | W26 |
EN Envariant Interpretability and reasoning infra for foundation models. | W26 |
EO Eos AI Autonomous OS for healthcare | W26 |
FE Fed10 AI agents that replace your policy consultants | W26 |
FE Fed10 AI Agents for Government Affairs | W26 |
FE Fenrock AI AI agents for banks | W26 |
FI Fixture An AI-first CRM built for Startups | W26 |
FO Foreman Keeping contractors on the job site, not behind a desk. | W26 |
FO Fort Strength Tracking Wearable | W26 |
FO Forum The first exchange to trade on attention. | W26 |
FO Forum The first regulated exchange to trade on attention. | W26 |
FU FullSeam FullSeam is an AI employee for finance and accounting teams. | W26 |
FU FullSeam FullSeam is an AI employee for finance and accounting teams. | W26 |
GA Galactic Resource Utilization Space, Inc. (GRU Space) Building the First Hotel on the Moon | W26 |
GE General Legal Elite AI law firm for high growth companies | W26 |
GL Glue Evals for frontier research agents | W26 |
GR Grade API for performance-based payroll | W26 |
GR GrazeMate Robot Cowboys that Herd Cattle with AI Drones | W26 |
HA Haladir Operational Superintelligence for Global Logistics | W26 |
HA Haladir AI-Enabled Mainframe Modernization and Code Translation. | W26 |
HE Hex Security Agentic Offensive Security at Scale | W26 |
HL Hlabs Making an industrial supply chain for building robots in the USA | W26 |
HU Human Archive Multimodal data provider for robotics learning | W26 |
HU Human Archive Physical AI data lab | W26 |
IN IncidentFox AI SRE agent that triages, coordinates, and fixes production incidents | W26 |
Explore YC companies by cohort. Each batch runs for 3 months and includes 200-300+ startups.
Find YC companies in your sector.
Track which YC companies are active, acquired, or public.
Y Combinator is the most prolific startup accelerator in the world, having funded companies that collectively are worth over $600 billion. For investors, tracking YC startups is one of the highest-signal deal sourcing strategies available. Companies that emerge from YC have been vetted by a world-class selection process, received intensive mentorship, and have access to the most powerful alumni network in tech. This makes YC companies a natural starting point for VC deal sourcing.
The typical YC company raises its seed round within weeks of Demo Day, often oversubscribed. Angels and seed-stage VCs who want access to the latest YC batch need to move fast and come prepared. A comprehensive YC database helps investors pre-screen companies before Demo Day, research founders' backgrounds, and understand the competitive landscape in each sector.
Beyond seed investing, tracking YC alumni is valuable for Series A and later-stage investors looking for proven companies ready to scale. Our database lets you filter by status to find top YC companies that are actively growing. Whether you're preparing for the next YC Demo Day or sourcing later-stage deals, our YC companies database gives you a complete view of the Y Combinator portfolio.
VCBacked provides verified founder contacts for YC companies and 6,302+ startups overall.
Browse YC companies by batch, industry, status, or location. Use filters to find companies matching your criteria.
Sign up for a paid plan to reveal verified founder email addresses and LinkedIn profiles for any company.
Export your filtered list with all datapoints including contacts. Import directly into your CRM.
Y Combinator has funded over 5,000 startups since its founding in 2005. Our database tracks the vast majority of these companies with batch information, industry classification, team size, founder details, and current status. New companies are added after each YC Demo Day.
A YC startup is a company that has been accepted into and completed the Y Combinator accelerator program. YC invests $500,000 in each company (as of recent batches) in exchange for 7% equity. YC startups go through an intensive 3-month program culminating in Demo Day, where they pitch to hundreds of investors.
The most successful YC startups include Airbnb (valued at $75B+), Stripe ($65B+), DoorDash ($50B+), Coinbase ($15B+), Instacart, Reddit, Dropbox, and Twitch. YC's portfolio includes 7 companies valued at $10B+ and dozens valued at $1B+ (unicorns). Browse our top YC companies page for the full list.
VCBacked provides verified email addresses for YC founders. Browse our database to find companies by batch, industry, or status. Sign up for a paid plan to reveal founder contact details and export them to CSV. This is useful for investors, sales teams, and recruiters who want to reach YC alumni directly.
Y Combinator runs two batches per year: Winter (W) starting in January and Summer (S) starting in June. Each batch includes 200-300+ companies. Check our batch pages for the latest companies, including the most recent Demo Day participants.
Yes. Our YC database lets you filter companies by industry including B2B SaaS, fintech, healthcare, AI/ML, developer tools, education, and many more. Each industry page shows all YC companies in that sector with batch, status, and team size data.
Investors track YC startups because Y Combinator has the strongest track record of any accelerator for producing high-growth companies. YC companies receive significant early validation, access to YC's network and resources, and typically raise follow-on funding quickly after Demo Day. Many VCs and angels consider YC participation a strong quality signal.
Yes, you can browse YC company profiles, batch data, industry breakdowns, and status information for free. For access to founder email addresses, advanced filters, and unlimited CSV exports, paid plans start at $79/month with no annual contract required.
Browse 6,302+ Y Combinator startups for free, or start a trial to unlock founder contacts and export data.
3-day free trial. No credit card required.