YC List
50 classes 6,350 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- Zephyr Fusion Powering tomorrow's industrial revolution in space
- Minro Identify churn risk and stay close to users at scale
- Allus AI Transforming manufacturing with our next-gen Vision Foundation Model
- MarkIt Compliance that makes products ready for global markets.
- Nexus We help non-technical teams build AI agents without engineers
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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- Rastro The fastest way to launch product catalogs.
- Capitol AI Capitol: the sovereign operating system for intelligence.
- DigitalCarbon Transform Images And Videos Into Immersive 3D With AI
- Hestus, Inc. An AI-powered CAD software
- Proxis The platform for enterprise AI agent automations, starting with email.
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Winter 2024
248 companies- ParcelBio Elevated mRNA for transformative medicines.
- Happenstance People search powered by AI
- Monumint Conversational AI purpose-built for financial services
- BiteSight The video-first food delivery app. Imagine TikTok meets DoorDash.
- Artos Authoring documents for life sciences in minutes, not months.
2023
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Summer 2023
220 companies- Pointhound Earn and redeem credit card points for free flights
- AgentCollect B2B debt collection powered by AI agents
- Inventive AI AI Agents For RFP and Questionnaire Response Automation
- kapa.ai The fastest way to build AI assistants on technical content
- Stellar Sleep We help people with chronic insomnia sleep better, using psychology.
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Winter 2023
274 companies
2022
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Summer 2022
233 companies- Stackup Stackup helps businesses manage their crypto assets.
- Eugit Therapeutics Enabling Tissue Targeting of Therapies
- Windmill Open-source platform to turn scripts into internal apps & workflows
- Wand Solar We enable landlords to generate income from solar panels.
- Coverage Cat Consumer Optimized Insurance
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Winter 2022
398 companies
2021
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Summer 2021
391 companies- Stepful Online Training for Healthcare Jobs
- Birdie Connect LinkedIn to your CRM to automate and track LinkedIn outreach.
- Revolve Surgical Surgical robotics for every operating room
- Meticulous Automated e2e screenshot testing without writing or maintaining tests
- Customily Making it easy to sell personalized products online.
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Winter 2021
335 companies
2020
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Summer 2020
209 companies- Akiflow All your tasks and calendars into an AI-powered productivity app
- Volopay Brex for South East Asia - Corporate cards & automated payments.
- Nephrogen Curative genetic medicines for kidney diseases
- CoreCare Helping healthcare providers reduce administrative costs using AI
- Decentro API Platform for Banking Integrations (Plaid for India and APAC)
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Winter 2020
229 companies- Vori Vori is a modern operating system for supermarkets
- Turing Labs Inc. AI for R&D of consumer brands like P&G to develop better products
- Raycast Speed up non-coding tasks for engineering teams
- Upflow Cash collection technology for B2B businesses
- Isabl Cancer tests based on whole genome and transcriptome data.
2019
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Summer 2019
174 companies- Prolific Making diverse, high-quality data easily available to anyone, anywhere
- Asher Bio We build better immunotherapies
- Hatchways We make engineering interviewing look more like real work.
- Recidiviz Helping create a smaller, fairer, safer justice system
- Traces Transform your video monitoring with AI
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Winter 2019
194 companies- Ashby All-in-one recruiting platform that empowers hiring excellence in…
- Keeper AI tax filing for complex returns
- Deel The all-in-one HR and payroll platform for global teams
- Cityfurnish Cityfurnish - Commitment-free furniture rentals for a better you!
- Flockjay AI-driven learning, content, and coaching for sales teams
2018
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Summer 2018
131 companies- Rebellyous Foods Rebellyous Foods is a food manufacturing technology and production…
- Quickchat AI Conversation Design platform to build Al Assistants tailored to your…
- Four Growers Robots that feed the world - robotic harvesting and analytics
- Inscribe AI Document Fraud Detection for Banks, Credit Unions & Lenders
- Duffel The complete toolkit to sell travel.
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Winter 2018
146 companies- Snackpass Order ahead at restaurants and get rewards with friends.
- Vena Medical Vena Medical is providing physicians with the world's smallest camera…
- Tradewind BioScience Tradewind translates scientific insight into innovative ways of…
- Promise Better payment systems for governments and the communities they serve.
- Lucy Goods, Inc Lucy’s mission is to reduce tobacco-related harm to zero. We provide…
2017
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Summer 2017
125 companies- Rev Genomics Rev is a biotechnology company creating better plants.
- Entocycle Automated factory to produce insect protein for farm animals.
- Flowspace The operating system powering ecommerce fulfillment
- D-ID Enable creators and developers to generate realistic AI personas
- Cashfree Payments Next-gen digital payments provider for India.
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Winter 2017
116 companies- Speak A superhuman, AI-powered language tutor in your pocket
- Collectly We help healthcare orgs collect more money faster
- Rippling One place to run all your HR, IT, and Finance. Globally.
- OneFin Shopify for Financial Services
- Indee Labs Enabling T cell immunotherapy discovery, development and manufacturing
2016
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Summer 2016
102 companies- Emote Catch student behavior problems before they start.
- GoGoGrandparent A concierge service for seniors’ rides, meals, meds, home and more.
- Airfordable Buy flights for only a fraction upfront and pay off the rest in…
- Joy The platform for all your life events.
- Athelas Extensible, Integrated Technology that Simplifies Health Systems
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Fellowship 2
18 companies- Ctzen 311 for the developing world
- Awesound Publish your audiobook in minutes, charge subscriptions for a paid podcast, and sell audio directly from your own website.
- Pramp A free peer-to-peer technical mock interviewing platform for engineers
- Zube Project management for Github issues
- Squire OpenTable for barbershops
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Winter 2016
122 companies- Perlara Perlara: building the YC for rare disease parents
- Salt Security Protects organizations from getting breached through their APIs.
- Apollo.io Apollo is the foundation of your entire go-to-market strategy.
- MailTime Emails as quick and easy as text messaging.
- Opentrons We make robots for biologists.
2015
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Fellowship 1
19 companies- Pawprint All your pet's data in one place
- Clearbanc Financial services for self-employed, freelancers, independent contractors, and entrepreneurs
- finbox.io Easy to use fundamental investing tools
- DNAsimple Donate and find DNA samples online
- Canvas Medical Canvas is a predictive charting interface designed and built exclusively for primary care
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Summer 2015
104 companies- Branch8 Branch8 helps sellers to list and manage products on e-commerce…
- teaBOT A robot that makes tea!
- Microhealth Rare Disease-Focused Care Delivery and Evidence Generation Platform
- Lugg Move anything, anytime, anywhere
- Heroic Labs Social Infrastructure for Games; Makers of Nakama game server, Satori…
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Winter 2015
110 companies- GiveMeTap We produce & sell stainless steel water bottles that enables people…
- Giveffect Fundraising, Volunteer and Donor Management SaaS for nonprofits.
- Zenflow Medical device that provides a more effective, less invasive…
- Bankjoy An end-to-end digital banking solution for banks and credit unions
- The Human Utility The Human Utility seeks to eliminate water service disconnections for…
2014
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Summer 2014
78 companies -
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Winter 2014
74 companies- Guesty The management platform for the short term rental industry.
- Ambition Coaching and gamification software for sales teams.
- Noora Health Training patients and their families with health skills
- AirHelp AirHelp helps air passengers get compensation for delayed, cancelled…
- TrueVault We make Privacy Software for SMBs.
2013
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Summer 2013
52 companies- Panorama Education Improving education for every student.
- Lob Lob is the only automation platform that transforms direct mail into…
- Webflow Professional website design and publishing platform.
- Asseta Sourcing marketplace for semiconductor fab spare parts.
- Estimote, Inc. Location intelligence platform
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Winter 2013
46 companies- SimplyInsured We sell health insurance to small businesses 100% online.
- Lollipuff Online Auctions for Authentic (Women's) Designer Goods
- Strikingly The easiest way to create a beautiful, mobile optimized website.
- CircuitLab Online circuit simulator and electronic schematic editor.
- Padlet Papyrus → Parchment → Paper → Padlet
2012
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Summer 2012
83 companies- Zentail We're making ecommerce simple connecting brands with sales channels
- Plivo Voice AI Agents for customer engagement, including WhatsApp, SMS &…
- Flightfox A platform to plan, book and manage global and group travel.
- ClassDojo Communication app for K-8 teachers, kids, and families
- Zapier The easiest way to automate your work.
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Winter 2012
66 companies- Per Vices Building Mission Critical Software Defined Radio products.
- HireArt Gives businesses everything needed to hire & manage W2 contractors.
- Shoptiques Shoptiques.com lets you shop the world's best local boutiques online.
- CleverDeck Collaborate with an artist to commission original artwork you'll live…
- Screenleap One-click screen sharing with installation-free viewing on all devices
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.
- Zerocater Zerocater is revolutionizing how companies feed their employees
- Tremendous How businesses send money to people at scale. Fast, free, global.
- Storyworth Record your family stories and print them in beautiful keepsake books.
- You Got Listings All-in-one apartment Marketing Platform for brokerages and landlords.
2010
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Summer 2010
36 companies -
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Winter 2010
27 companies- Crocodoc Embed PDFs, PowerPoints, and other documents into web and mobile apps
- Embedly Embedly provides a platform and suite of tools to make embedding and previewing links simple. Embedly helps publishers and consumers mana...
- Zenedy Zenedy Zenedy was started as a means to showcase information about obscure topics from around the web.
- Bitplay Effortless Video Meetings - Acquired by Jive Software in 2013
- Fabricly Fabricly is an online marketplace that takes the risk out of sourcing apparel manufacturers and materials. It is used by a growing numbe...
2009
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Summer 2009
26 companies- Listia Mobile marketplace for trading used goods.
- Mixpanel Mixpanel is event analytics for builders that need answers.
- Stripe Economic infrastructure for the internet.
- Olark Olark gives you an AI agent that works your marketing funnel 24/7
- Lingt Lingt provided a web-based platform for learning languages leveraging…
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Winter 2009
16 companies- Volantio Post-booking revenue and capacity optimization for airlines…
- Foodoro Foodoro is a marketplace where people can buy specialty food directly from artisanal Foodmakers Our goal is to help people discover amaz...
- Wattvision Sensors and software for energy tracking. Like 'fitbit' for your…
- reMail Email search for iPhone. Acquired by Google in Feb 2010.
- Airbnb Book accommodations around the world.
2008
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Summer 2008
22 companies -
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Winter 2008
21 companies- RescueTime Take Back Control of your Time
- Ninite Simple third-party app patching and deployment for Windows.
- Joberator Joberator was formed to tackle head-on the growing challenges and connection-gap issues in the STEM employment and recruitment marketplac...
- Heroku Enabling developers to build and run applications in the cloud.
- Omnisio Edit and enhance online video. Acquired by Google in July 2008.
2007
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Summer 2007
19 companies- Bountii Bountii is a price search startup that has built a search engine capable of finding shoppers lower and more accurate prices than any exis...
- SocialPicks SocialPicks is an investment community where members learn from each other.
- Disqus Add comments to your website.
- Blue Frog Gaming Browser game studio behind Starfleet Commander. Its successor SFC2 is a free, persistent space strategy MMO.
- Clickpass Clickpass provides single-sign-on services to enter into various websites by using a single password. Clickpass is headquartered in San ...
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Winter 2007
14 companies- Buxfer Buxfer helps you make better spending decisions by making it easy to…
- Virtualmin Virtualmin is taking on the lack of innovation in the server admin programs, like Plesk, by making a more accessable version for pages ma...
- Octopart Octopart is a search engine for electronic components
- Auctomatic Auctomatic, a Y Combinator company, offers an auction and marketplace management system for all of those individual sellers on such sites...
- Weebly Build a free website that grows with your business.
2006
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Summer 2006
10 companies- Scribd World's largest online library.
- Xobni Xobni makes your inbox and address book smarter. Xobni, and its Smartr product suite, discover all the people you've ever emailed, calle...
- OMGPop An independent flash game studio.
- Likebetter An online personality test game, where you look at two photos and choose which one you “Like Better”.
- Jumpchat A platform bridging mobile text messages, email, and IM communication without needing to download anything. Users can send mass messages ...
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Winter 2006
7 companies- Snipshot We sold Snipshot to Ansa in 2013.
- Inkling Inkling, based in Chicago, Illinois, offers collective intelligence solutions to help organizations make more informed decisions. Inkling...
- Clustrix Clustrix provides the leading scale-out relational database engineered for the cloud or data center. ClustrixDB is a drop-in replacement ...
- Flagr Flagr enables users to share places, adding photos, video and descriptions from their mobile phone. They can then create maps and embed t...
- Wufoo Online form builder.
2005
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Summer 2005
8 companies- TextPayMe Founded in 2005, TextPayMe is an SMS payment service that lets you send money to other people using cell phone text messaging. TextPayMe ...
- Clickfacts ClickFacts is a Malware Software Solutions company for buyers and sellers of online media. Its automated plug and play malware discovery ...
- Loopt Loopt, based in Silicon-Valley and backed by leading venture capital firms Sequoia Capital and New Enterprise Associates, has created an ...
- Reddit The frontpage of the internet.
- Infogami What is Infogami? The art of transforming data into meaningful information. Infogami Business Intelligence (BI) solutions turn raw data...
