YC List
48 classes 6,313 companies
List of Y Combinator companies by class
2026
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Summer 2026
231 companies -
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Spring 2026
193 companies -
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Winter 2026
197 companies
2025
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Fall 2025
145 companies -
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Summer 2025
166 companies -
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Spring 2025
144 companies -
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Winter 2025
165 companies
2024
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Fall 2024
94 companies -
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Summer 2024
248 companies -
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Winter 2024
248 companies
2023
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Summer 2023
220 companies -
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Winter 2023
274 companies
2022
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Summer 2022
233 companies -
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Winter 2022
398 companies
2021
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Summer 2021
391 companies -
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Winter 2021
335 companies
2020
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Summer 2020
209 companies- Hypotenuse AI AI-native Operating System for Enterprise Ecommerce Companies
- Akiflow All your tasks and calendars into an AI-powered productivity app
- SockSoho Building world's largest men fashion brand powered by technology
- HENRY We train AI engineers and connect them with companies.
- inSoma Bio Helping Plastic Surgeons Rebuild Fat
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Winter 2020
229 companies
2019
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Summer 2019
174 companies- zeroheight The design system layer for coding agents
- EARTH AI Predictive Explorer and Driller for Critical Metal Deposits
- Sequence Bio Discovering the true signals of disease to power life-changing drugs.
- matagora Empowering local retailers with tech that works for them.
- Legacy Legacy helps you test, improve, and freeze your sperm
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Winter 2019
194 companies- Truora Reliable background checks & fraud prevention tools for Latin America.
- Alpaca API-first stock and crypto brokerage platform
- Reelables The Future of Supply Chain Data Tracking and Visibility
- Landed Generative AI for frontline worker hiring
- AccioJob Offline-first tech skilling and placement for India
2018
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Summer 2018
131 companies- Papa One-stop-shop for flexible family care
- DreamCraft Entertainment, Inc. Platform that allows anyone to create and monetize video games.
- Quo (fka OpenPhone) The all-in-one business phone for teams.
- CB Therapeutics Fermentation-derived natural products to solve health problems
- 64x Bio Enabling next generation medicines. A comprehensive platform and…
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Winter 2018
146 companies- Proven Group PROVEN is using AI, data and personalization to disrupt CPG
- ZBiotics ZBiotics makes genetically engineered probiotics.
- Gainful Personalized Performance Nutrition
- Promise Better payment systems for governments and the communities they serve.
- Pelago The world's first digital clinic for substance use management
2017
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Summer 2017
125 companies- Flowspace The operating system powering ecommerce fulfillment
- Upfort Turnkey security & hassle-free cyber insurance from leading insurers
- Aecore Vertically integrated commercial construction
- Entocycle Automated factory to produce insect protein for farm animals.
- FollowUpThen FollowUpThen is an email-based personal assistant that sends you…
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Winter 2017
116 companies
2016
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Summer 2016
102 companies- Scale AI Data-centric infrastructure to accelerate the development of AI
- Legalist Legal investment firm
- Expo Expo brings together the best of web and native app development
- Upgraded Upgraded helps retailers and carriers sell devices on subscription.
- RocketLit RocketLit is an adaptive learning and assessment platform.
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Winter 2016
122 companies- Astranis Advanced satellites for high orbits.
- Tovala A smart-oven-paired subscription meal service.
- Petcube Petcube is on the mission to improve lives of pets and pet owners…
- Thunkable Thunkable is the no-code platform to build powerful native mobile apps
- Sendbird The AI agent that doesn’t just support, it delights.
2015
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Summer 2015
104 companies -
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Winter 2015
110 companies- Flip Community-driven marketplace for sneakers.
- GiveMeTap We produce & sell stainless steel water bottles that enables people…
- Zeitview Inspection software for renewable energy & sustainable infrastructure
- Makrwatch Scale new user acquisition with YouTube Creators
- Sails Co. Full-service web, mobile, & cloud studio providing professional…
2014
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Summer 2014
78 companies- Bayes Impact Tech nonprofit building the future of public services.
- Alchemy Nanotechnology-enabled coatings for automotive and defence sectors
- Hyperpad Create, Share, Play Mobile Games on the iPad.
- Front Customer communications hub for building strong relationships
- Flaviar Try-at-home service for fine spirits
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Winter 2014
74 companies- OpenCurriculum Helping K-12 teachers and school administrators build awesome…
- PiinPoint PiinPoint helps businesses find the best locations for growth
- Flexport Platform for global logistics.
- Cambly On-demand access to English tutors over video chat.
- Ambition Coaching and gamification software for sales teams.
2013
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Summer 2013
52 companies- Lob Lob is the only automation platform that transforms direct mail into…
- Estimote, Inc. Location intelligence platform
- Webflow Professional website design and publishing platform.
- Asseta Sourcing marketplace for semiconductor fab spare parts.
- Panorama Education Improving education for every student.
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Winter 2013
46 companies- Padlet Papyrus → Parchment → Paper → Padlet
- InfluxData The platform for building and operating time series applications.
- Watsi Watsi is the first global crowdfunding platform for medical…
- SimplyInsured We sell health insurance to small businesses 100% online.
- Lollipuff Online Auctions for Authentic (Women's) Designer Goods
2012
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Summer 2012
83 companies- Submittable The best way to launch, manage and measure social impact programs
- SmartAsset Marketplace connecting consumers to financial advisors
- Upwave Marketing analytics for the world's biggest brand marketers
- Zentail We're making ecommerce simple connecting brands with sales channels
- Plivo Voice AI Agents for customer engagement, including WhatsApp, SMS &…
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Winter 2012
66 companies- HireArt Gives businesses everything needed to hire & manage W2 contractors.
- Screenleap One-click screen sharing with installation-free viewing on all devices
- Shoptiques Shoptiques.com lets you shop the world's best local boutiques online.
- Medigram We are making a HIPAA-compliant, Groupme app for doctors to…
- CleverDeck Collaborate with an artist to commission original artwork you'll live…
2011
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Summer 2011
60 companies -
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Winter 2011
45 companies- Instapainting Custom-made artwork from artists e-commerce marketplace.
- Tumult Tumult is building the next generation of apps for web design. Our…
- SingleStore The cloud-native, operational database built for speed and scale.
- You Got Listings All-in-one apartment Marketing Platform for brokerages and landlords.
- Storyworth Record your family stories and print them in beautiful keepsake books.
2010
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Summer 2010
36 companies- Docker Software development platform.
- Recurse Center The retreat where curious programmers recharge and grow
- WorkFlowy WorkFlowy is a better way to manage information. It provides a simple…
- AnyList One app for stress-free shopping, cooking, and meal planning.
- DemandSphere SEO & Content Marketing Intelligence
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Winter 2010
27 companies
2009
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Summer 2009
26 companies -
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Winter 2009
16 companies
2008
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Summer 2008
22 companies -
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Winter 2008
21 companies
2007
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Summer 2007
19 companies -
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Winter 2007
14 companies
2006
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Summer 2006
10 companies -
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Winter 2006
7 companies
2005
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Summer 2005
8 companies