Tech Company CollectionsY Combinator Portfolio Companies

Y Combinator is a renowned startup accelerator and venture capital firm that has played a pivotal role in shaping the tech startup landscape. Founded in 2005 by Paul Graham, Y Combinator (often abbreviated as "YC") is widely recognized for its unique approach to nurturing and supporting early-stage startups.

YC's primary program is its startup accelerator, which typically runs in three-month cycles. During these cycles, selected startups receive a combination of funding, mentorship, resources, and guidance to help them develop their products, refine their business models, and prepare for growth. In exchange for a small equity stake, startups receive seed funding, access to a network of experienced mentors, and the opportunity to present their progress to a room full of potential investors during a culminating "Demo Day."

YC's mentor network is one of its defining features. The network consists of successful entrepreneurs, industry experts, and investors who provide startups with invaluable insights, advice, and connections. This mentorship-driven approach allows founders to tap into a wealth of knowledge and experience, enabling them to make informed decisions and navigate the challenges of building a startup.

Beyond its accelerator program, Y Combinator offers additional resources to support the startup community. YC Continuity is a fund designed to provide growth-stage funding to YC alumni companies as they continue to scale. YC Research focuses on funding important projects, and YC Startups is a resource hub for early-stage founders, featuring advice, articles, and tools.

Notably, Y Combinator has a remarkable track record of backing successful companies. YC has invested in and supported startups that have gone on to become industry giants, including Airbnb, Dropbox, Stripe, Reddit, DoorDash, and many more. The success stories from YC's portfolio showcase the impact of the accelerator's guidance and resources.

In essence, Y Combinator is more than just a venture capital firm; it's an ecosystem that fosters innovation, nurtures entrepreneurship, and empowers founders to turn their ideas into thriving businesses. Through its accelerator program, mentor network, and ongoing support, YC continues to shape the trajectory of startups and contribute to the evolution of the tech industry.

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List of Y Combinator Portfolio Companies

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Xeol logo
Xeol help customers secure their software from code to deploy.
New YorkNY1 - 102023$3,200,000
Sohar Health logo
Sohar Health is a platform for behavioral health companies. It is an API-based solution to handle eligibility verification, and AI-powered medical coding to automate manual workflows, increase patient intake, and generate more revenue
New YorkNY1 - 102023$3,737,000
Vocode logo
Vocode is an open-source library for building voice-based LLM applications.
San FranciscoCA2 - 102023$3,750,000
AiSDR logo
AiSDR automates meeting scheduling by categorizing leads, speaking with prospects, designing email campaigns, and utilizing AI technology. The company helps startups increase sales while reducing costs by creating and managing outbound email campaigns for
San FranciscoCA1 - 1020232971137 EUR
Pier logo
Pier's mission is to create tools for the next generation of innovators to improve credit access. They are developing an API to help us launch credit products. With just a few lines of code, they enable any company to offer credit by handling origination,
AlamedaCA2 - 102023$2,900,000
Vellum logo
Vellum (W23) is a developer platform for building production-worthy applications on LLMs like OpenAI’s GPT-3 or Anthropic’s Claude. Use Vellum to save hours on prompt engineering, iterate on prompts in production confidently, and continuously fine-tune for
New YorkNY2 - 102023$5,500,000
Monitaur logo
Monitaur is an observability platform for web3 applications powered by machine learning. It gives insights across the entire stack with real-time monitoring, anomaly threat detection, and powerful event management.
BostonMA10 - 502023$8,155,360
Cascading AI logo
Cascading AI is the developer of a tool for automating manual banking activities. The company employs artificial intelligence technologies to speed loan document gathering, account creation, and compliance procedures, allowing banks, credit unions, and non
San FranciscoCA2 - 102023$3,900,000
Defog logo
Defog integrates into your app and allows your users to query data in seconds using natural language. Defog are powered by large language models that can search and visualise both structured and unstructured data (such as SQL databases or Data Warehouses)
San FranciscoCA2 - 102023$2,700,000
Sweep logo
Sweep is an artificial intelligence assistant that can take care of users' software tasks automatically.
San FranciscoCA1 - 102023$2,000,000
Cleva logo
Cleva Banking is a banking platform helps in recieving international payments by opening USD accounts.
MiddletownDE10 - 502023$1,500,000
VectorShift logo
VectorShift Builds, designs, prototypes, and deploys custom generative AI workflows.
San FranciscoCA1 - 102023$3,000,000
GigaML logo
We make high-quality finetuned models based on open-source LLMs
San FranciscoCA5 - 202023$3,600,000
Deasie logo
Deasie is a startup that creates tools to give businesses more control over text-generating AI models.
San FranciscoCA1 - 102023$2,900,000
Warp logo
Payroll and compliance for startups. Warp is the best platform for founders to run their companies.
New YorkNY2 - 102023$5,700,000
Resend logo
Resend is a modern customer communication and lead-capturing platform that helps companies support and engage with customers on websites.
San FranciscoCA2 - 102023$3,500,000
Artisan AI logo
Artisan AI creates digital workers, called Artisans. The company's first Artisan, Ava, automates the entire outbound sales process and can be set up with a 10-minute conversation. Ava creates TCPs, and prospects with her database of over 270,000,000 contac
San FranciscoCA10 - 502023$2,300,000
Craftwork logo
Craftwork is a general contracting company that uses technology to simplify repair and renovation projects for homeowners.
CharlotteNC10 - 502023$10,000,000
Reworkd logo
Reworkd is an AI-driven automation platform that allows for the automation of business processing workflows to achieve outcomes. Their aim is to democratize access to AI. They believe the power of AI should be accessible to anyone and driven by the communi
San FranciscoCA2 - 1020231650000 CAD
Speedy Brand logo
Speedy does digital marketing for SMBs 10x faster using Generative AI at affordable prices. SMBs across a dozen-plus verticals use Speedy’s SEO-optimized blogs and social media content to drive more traffic and hotter leads.
MiddletownDE5 - 102022$2,500,000
Frigade logo
Frigade is a developer tool that makes it easy for developers to build better product onboarding and education.
San FranciscoCA2 - 102022$3,500,000
Persist AI logo
Developing extended-release PLG drug formulations takes $10M+ and 5-10 years. We enable drug manufacturers and CROs to shorten formulation discovery time by 30-50% by utilizing our automation and machine learning platform.
WoodlandCA5 - 102022$4,500,000
Numeral logo
Numeral provides fully automated revenue recognition and transaction-level cash reconciliation for high-volume businesses. The company's automated subledger provides real-time revenue reporting and transaction-level cash reconciliation for the digital paym
San FranciscoCA5 - 202022$5,075,000
Emerge Career logo
Emerge sells to the government online job training that lifts low-income people out of poverty. For example, Connecticut allocated $840K for us to train incarcerated people to become truck drivers.
New YorkNY2 - 102022$3,200,000
Finnt logo
Finnt harnesses the potential of decentralized finance and makes it available to anybody via a secure and user-friendly online and mobile application. Finnt has made it simple for clients to set up sub-accounts and save for any of their family members. Fin
MiamiFL5 - 202022$3,500,000
Ciro logo
Modern sales teams need great data and software. Ciro is building the next-gen platform for companies selling to SMB and Local businesses.
San FranciscoCA5 - 202022$3,800,000
Coverage Cat logo
Coverage Cat is a new way for people to optimally insure against their risks.
New YorkNY5 - 102022
TigerEye logo
TigerEye is a chemical company currently based in San Francisco, California, United States. It has been founded in 2022.
San FranciscoCA5 - 202022$35,000,000
Derisk logo
Derisk is a crypto custody infra and leverages Multi-Party Computation (MPC) cryptography.
SeattleWA2 - 102022$1,017,000
Booth AI logo
Booth AI enables companies to supercharge their creative output with a generative-AI powered image production platform. https://booth.ai
San FranciscoCA2 - 102022$1,070,000
Poly logo
Poly is a web tool for generating design assets with AI, including textures, graphics, icons, sprites, and more. With a simple text prompt, you get unlimited customizable, 4K UHD, and commercially-licensed creative assets that match your color and style wi
San FranciscoCA5 - 102022$8,000,000
Rubber Ducky Labs logo
Rubber Ducky Labs builds developer tools for recommender systems at large companies.
San FranciscoCA2 - 102022$2,000,000
TrueBiz logo
TrueBiz unlocks the data in company documents like Articles of Incorporation and 50+ others. It takes seconds to process – not days, so Financial Institutions can efficiently meet Know Your Business requirements and onboard new businesses.
New YorkNY5 - 202022$2,400,000
AccessOwl logo
AccessOwl automates the provisioning and permissioning of SaaS accounts for employees.
Mountain ViewCA5 - 102022
Rollstack logo
Rollstack automatically generates and updates slide decks and documents by pulling data from various sources, including Business Intelligence (BI) tools, CRMs, and data warehouses. Common use cases include business reviews, financial reporting, and client
New YorkNY2 - 102022$1,925,000
Pylon logo
The future of B2B customer collaboration is moving from email to new-age platforms like Slack, Teams, Discord, Telegram, and more. We've seen companies 4x their sales cycles and increase NRR by 50% when collaborating with prospects & customers using these
San FranciscoCA5 - 102022$3,325,000
Metriport logo
Metriport helps digital health companies access and manage health and medical data, through a universal open-source API.
San FranciscoCA5 - 102022$2,900,000
Monterey AI logo
Monterey AI is an organization.
San FranciscoCA5 - 102022
Intrinsic logo
Intrinsic is a software company that provides safety tools and API.
San FranciscoCA2 - 102022$3,600,000
PermitFlow logo
PermitFlow is the first construction permit application and management platform for builders and owners. The company aims to streamline and simplify construction permitting in the United States, unlocking more value in the $1.6 trillion construction market
MilpitasCA5 - 202022$36,500,000
Truewind logo
Truewind is an IT company that provides AI-powered bookkeeping and finance software.
San FranciscoCA5 - 102022$3,500,000
Middleware Labs logo
Middleware is the unified cloud-native observability and monitoring platform for DevOps, engineers, IT operations teams, and business users in the cloud age. Businesses of all sizes use our platform. We offer a complete view to our clients of their technol
San FranciscoCA50 - 2002022$7,000,000
Maverick Bioworks logo
Maverick Bioworks is developing a biological process to efficiently extract lithium from hard rock deposits. We hope to do for lithium and battery metals what shale did for oil.
San FranciscoCA2 - 102022
SimpleHash logo
SimpleHash specializes in infrastructure for multi-chain NFT indexing and querying.
San FranciscoCA2 - 102022
Needl logo
Needl is a cross-platform application that lets search across local filesystems and accounts like Gmail, Google Drive, Google Calendar, Notion, and Slack.
SeattleWA1 - 102022$2,500,000
Bracket logo
Bracket syncs Airtable, Notion, and G-Sheets with backend databases in both directions. Nontechnical teams can use Bracket to access data from databases in familiar tools without engineers writing scripts or building internal tools.
New YorkNY10 - 502022$1,000,000
Blaze AI logo
Blaze AI is an organization. It has been founded by Lauren Rothwell.
San FranciscoCA5 - 202022
Pilot AI logo
Use cutting-edge AI to automatically update and populate your CRM directly from your sales calls.
Palo AltoCA5 - 202022$2,700,000
Neptyne logo
Neptyne is building the data tools for the 21st century.
New YorkNY2 - 102022$2,000,000
Eto logo
Eto Labs is an IT company that offers data needs for ETL, analytics, training, sharing, and end-to-end data consistency.
San FranciscoCA1 - 102022
Finni Health logo
Finni provides behavioral health care services for children. Their therapists provide care where your child feels comfortable. They empower autism providers to make themselves independent.
San FranciscoCA10 - 502022$4,140,000
JustPaid logo
JustPaid.io is the AI-powered controller you wish you had earlier, so you will never have to worry about overpaying bills again. Automatically check bills and bank charges against contractual pricing from vendors to ensure there are no billing errors. Savi
Mountain ViewCA5 - 202022$4,000,000
Maverick BioMetals logo
Maverick BioMetals is a biotechnology business that is working to improve lithium processing. Founded in 2022 and is based in San Francisco, CA.
San FranciscoCA5 - 102022$9,643,534
NuMind logo
NuMind is a manufacturing company currently based in Cambridge, Massachusetts, United States. It has been founded in 2022 by Etienne Bernard and Samuel Bernard.
CambridgeMA5 - 102022$3,500,000
Suger logo
Enable SaaS business to sell & cosell on multi cloud marketplaces (AWS, Azure, GCP, Red Hat, Snowflake & Databricks)
BiddefordME5 - 102022$3,500,000
AirMyne logo
AirMyne is building a machine to remove CO2 from atmospheric air at industrial scale.
BerkeleyCA5 - 202022
Radical logo
Radical offer continuous, year-round, direct-to-handset LTE or 5G to more than 90% of the world's population, Radical are developing high altitude solar aircraft. At a tenth of the cost of terrestrial networks, Radica aircraft can increase network coverage
SeattleWA2 - 102022$4,965,000
Reflex logo
Reflex is an open-source, full-stack Python framework that allows you to quickly design and deploy web projects.
San FranciscoCA5 - 202022$5,500,000
Remi Labs logo
Everything a business needs to launch their own NFTs
Salt Lake CityUT5 - 202022
Movley logo
Movley helps firms manufacturing in China build better products through on-the-ground control inspections.
LewesDE5 - 202022$3,035,000
Certainly Health logo
Certainly Health is a marketplace to book providers with upfront prices and no surprise bills.
New YorkNY2 - 102022$2,300,000
Immuna logo
Immuna is a financial services company. It has been founded in 2022.
San FranciscoCA1 - 102022
Nest Genomics logo
Nest Genomics is a lab-agnostic, comprehensive software solution for implementing genomic programs at scale.
New YorkNY5 - 202022$8,500,000
Infisical logo
Infisical is an open-source, end-to-end encrypted tool that helps developers manage secrets and environment variables across their teams, devices, and infrastructure.
San FranciscoCA5 - 102022$2,925,000
Recall.ai logo
Recall.ai is a software Development company.
San FranciscoCA2 - 102022$2,700,000
Entvin logo
Entvin makes it easy for sales-driven companies to plan, track and calculate incentives/commissions to improve speed & transparency within the organization. It’s a scalable platform that companies can setup in a day, connect to their CRM and calculate comm
San FranciscoCA5 - 102022$500,000
KnowTex logo
Making doctors 2x more efficient with AI note-taking & charge capture
San FranciscoCA2 - 102022$125,000
SilkChart logo
SilkChart helps growth teams improve campaigns based on what users are doing in product - without relying on expensive data scientists. We do this through a no code analytics tool that combines marketing and product usage data to identify which channels, a
San FranciscoCA2 - 102022$5,700,000
Credal.ai logo
Everything you need to securely adopt AI Credal is the safest way to leverage AI at your enterprise - allowing you to use all your favorite AI applications and keep your data safe. Our APIs, secure chat UI, and Slack bot come with your data pre-integrated
New YorkNY2 - 102022$5,300,000
Juicebox logo
Juicebox is a subscription-based marketplace for businesses to hire independent tech talent.
New YorkNY2 - 102022
Vance logo
Vance provides borderless banking with one single account to manage money across the world.
San FranciscoCA10 - 502022$5,800,000
Vessel logo
Vessel is an organization currently based in San Francisco, California, United States. It has been founded in 2022 by Avery Yip and Zachary Kirby.
San FranciscoCA1 - 102022
Bluebirds logo
Bluebirds is an AI-based data platform to find customer contacts that switched jobs.
San FranciscoCA5 - 102022$5,500,000
Loops logo
Loops is a startup that created a platform for SaaS startups to send emails.
Washington, D.C.5 - 102022$3,200,000
Outset logo
The Outset is a creative catalyst. We partner with entrepreneurs and emerging companies to transform boundless possibilities into compelling realities. Our work encompasses brand strategy and identity, art direction and packaging, web design and creative p
San FranciscoCA5 - 202022$4,900,000
Bend logo
Bend makes CO2e emissions data programmable and queryable. Track companies as they cut carbon, and measure your supply chain footprint.
New YorkNY2 - 102022$2,500,000
Notebook Labs logo
Notebook Labs is an identity infrastructure layer with zero knowledge that allows Web3 protocols to generate Sybil-resistant credentials.
StanfordCA5 - 102022$3,300,000
Rampay logo
Rampay is a crypto currency platform that offers a trustworthy payment channel.
LewesDE2 - 102022$500,000
Coris logo
Coris is a modern risk infrastructure for vertical Software-a-as-Service companies and payment processors. Coris provides relevant alternative data about merchants for efficient and automated underwriting, as well as early warning signals before a merchant
Palo AltoCA2 - 102022$3,700,000
Drifting In Space logo
Drifting in Space develops server infrastructure for designing browser-based tools. The company develops Jamsocket, a platform for building applications with session-lived backends and also publishes open-source libraries, like Spawner and Aper. Its platfo
New YorkNY2 - 102022$2,500,000
Coinbooks logo
Coinbooks is a San Francisco-based accounting software startup. Coinbooks work by integrating with crypto wallets and existing accounting software so that crypto companies can manage both their crypto and non-crypto transactions in one place.
San FranciscoCA2 - 102022$5,700,000
Axle logo
Axle is an open platform for consumer-permissioned insurance data. With Axle, companies can instantly verify insurance and monitor ongoing coverage, helping them create a frictionless experience for their customers and reduce operational risk through bette
AtlantaGA5 - 202022$4,500,000
Moneytree Power logo
A turnkey solar amenity for renters and rental property owners. Solar unlocks value for millions of buildings, but rental properties have been left behind. We’ve fixed that with technology that makes adding solar simple and profitable for rental property o
Santa MonicaCA2 - 102021
Ozone logo
Over the last three years, global internet bandwidth has nearly doubled. As internet speeds continue to climb at a rapid pace, computers will fundamentally change. The most spec'd out gaming PC with the latest processor and a brick-sized graphics card will
BostonMA20 - 1002021$7,100,000
Warrant logo
Warrant develops APIs and infrastructure to help developers add authorization and access control to their apps. It handles the complexity of managing authorization so engineering teams can focus on building their core products.
Los AngelesCA5 - 102021$125,000
Array Labs logo
High quality 3D imagery is the key to understanding the world around us and is critically important to a host of traditional and emerging industries. However, current methods of supplying this data are slow, expensive, or low-quality. Array Labs is develop
Fort WayneIN2 - 102021$5,600,000
Pragmatic Leaders logo
Pragmatic Leaders is an ecosystem solving real-world case-based product management courses for pragmatic tips, tools, events, and jobs. The ecosystem is built on 3 pillars of Educate, Engage, and Employ. The Educate provides pragmatic training and a struct
San FranciscoCA10 - 502021
Unsaddl logo
Unsaddl enables employers to offer flexible education benefits with student loan contributions and tuition reimbursement
New YorkNY2 - 102021$125,000
StandardCode logo
StandardCode makes it easy for companies to comply with child data privacy laws such as COPPA and GDPR-K.
San FranciscoCA2 - 102021$125,000
Get Stack logo
Stack is a B2B SaaS computer vision information system company that aims to rethink the way warehouses are managed across the United States.
CambridgeMA2 - 102021$500,000
Integrated Reasoning logo
Integrated Reasoning builds computer hardware to efficiently solve optimization problems. We're making faster and cheaper to solve problems like scheduling airline pilots or packing boxes into trucks.
San FranciscoCA2 - 102021$500,000
Castled Data logo
Customer Engagement Platform which sits directly on top of data warehouses like Snowflake, BigQuery, Redshift etc.
WilmingtonDE5 - 102021$2,100,000
Trackstar logo
Trackstar is an e-commerce brand-specific 24/7 monitoring and issue prevention platform. It boosts profits by detecting mission-critical issues in storefronts, advertising and marketing platforms, and e-commerce enablement tools. Trackstar introducing DevO
New YorkNY5 - 102021$3,100,000
EXO Freight logo
EXO Freight is applying technology to the often-overlooked open deck transportation industry. Our goal is to bring the open deck shipper into the digital age.
Royal OakMI50 - 2002021$15,000,000
EarnJARVIS logo
Premium crypto investment platform, automating asset and yield management
San FranciscoCA10 - 502021$3,500,000
Carbonfact logo
Carbonfact is a software running fast life-cycle assessments to help fashion brands lower their scope 3 emissions. The company currently serves more than 150 fashion brands and works with major fashion retailers like Yoox Net A Porter and La Redoute.
WilmingtonDE5 - 202021$2,125,000
Arc Technologies logo
Arc Technologies is the full-service finance platform for SaaS. Arc is on a mission to help startups grow. Today, they provide a better way for SaaS founders to raise capital by avoiding costly dilution and risky debt. Tomorrow, they will become the financ
San FranciscoCA50 - 2002021$181,000,000
1Flow logo
1Flow helps companies understand customers along their entire journey, so that they can build products people love, tell stories people relate to, and deliver experiences people enjoy. With our powerful, self-serve in-app survey platform, teams can easily
San FranciscoCA5 - 102021$2,100,000
Hypercontext logo
Managers have been the most unsupported and under-resourced individuals in any organization, until now. Hypercontext is on a mission to make better managers, helping them juggle their team activities while coaching good management habits. We help turn “meh
RemoteOR10 - 502021$125,000
Roforco logo
Roforco is a game studio who mitigate hit based risk by mass producing games. We partner with developers to finish almost complete yet abandoned games. Tom and Brain are both technical founders with a lifetime of Roblox game development behind them (acros
San FranciscoCA10 - 502021$1,500,000
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