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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Piramidal logo
Piramidal offers artificial intelligence software that transforms brain activity into easy-to-understand health data to help diagnose neurological diseases.
San FranciscoCA1 - 102024$6,500,000
USUL logo
USUL is a modern government intelligence platform that provides software solutions.
ChehalisWA2 - 102024$500,000
Ocular AI logo
Ocular is a Cloud and Artificial Intelligence company, backed by Y Combinator, bringing Enterprise AI and Search to the Workplace and Engineering.
AtlantaGA2 - 102024$500,000
Leaping logo
Leaping autonomously into the code is a recipe for bugs and errors. Instead, trust the tested code fixes for a reliable and successful solution.
San FranciscoCA1 - 102024$500,000
Oma Care logo
Oma Care is to empower, assist, and compensate people who care for our most vulnerable citizens—family caregivers.
San FranciscoCA1 - 102024$500,000
K-Scale Labs logo
K-Scale Labs is a robotic engineering company specializing in creating open-source humanoid robots.
New YorkNY1 - 102024$500,000
Blacksmith logo
Blacksmith is a company that helps businesses to conduct their continuous integration (CI) up to twice as quickly and at half the expense. Blacksmith accomplish this by running CI on powerful gaming CPUs.
VenturaCA2 - 102024$500,000
Manifold Freight logo
A software solution that aggregates spot freight opportunities for medium-to-large carriers
SeattleWA2 - 102024$2,400,000
Agentic Labs logo
Agentic Labs is integrating AI into software design and architecture to alleviate pain points. Although there are many tools available to developers today for quickly developing code, the most difficult and labor-intensive aspect of software engineering is
New YorkNY2 - 102024$500,000
Guac logo
Guac is a saving app designed to help the user to save while spending towards their goals. Guac users set their goals, deadlines when they want to purchase/book that goal and utilize Guac's unique percentage-based save while they spend savings tools to fun
DoverDE5 - 102024$5,101,947
ProSights logo
ProSights is an AI-powered enterprise search platform designed for investors.
New YorkNY10 - 502024$2,000,000
Alacrity logo
Alacrity is a company that assists businesses in preventing ATOs (account takeovers) by offering a range of multi-factor authentication tools that provide both security and a positive user experience.
San FranciscoCA1 - 102024$500,000
CrowdVolt logo
CrowdVolt is a platform that allows fans to swap tickets to live events via a two-sided, bid-ask system, beginning with raves and EDM concerts.
New YorkNY2 - 102024$1,900,000
Pretzel AI logo
Pretzel AI is a cutting-edge, open-source substitute for Jupyter Notebook designed for data scientists and analysts that solves a number of persistent problems with Jupyter. It emphasizes AI, fosters collaboration, provides a contemporary development envir
San FranciscoCA1 - 102024$500,000
Yondu logo
Yondu is a robotics engineering firm offering AI models for diverse robotic applications, including a voice-controlled drone.
San FranciscoCA1 - 102024$500,000
Thorntale logo
Thorntale is the first presentation program developed for data storytelling.
San FranciscoCA1 - 102024$500,000
OneGrep logo
OneGrep is an artificial intelligence company that provides insights to improve team observability data and streamline the engineering operations
New YorkNY2 - 102024$500,000
Aidy logo
Aidy is an AI assistant that helps to find, qualify, and apply for U.S. federal grants. It can quickly check the project's eligibility and competitiveness across various grant programs, and assist in filling out forms and drafting documents with AI.
San FranciscoCA2 - 102024$500,000
Aedilic logo
Aedilic is a transportation service provider offering Storage services with drone delivery.
Palo AltoCA2 - 102024$500,000
ProhostAI logo
AI-powered operating system for short-term rental hosts
San FranciscoCA2 - 102024$1,465,000
Octolane AI logo
Octolane AI is an artificial intelligence platform that rebuilds salesforce with the power of AI.
New YorkNY2 - 102024$500,000
Haplotype Labs logo
Haplotype is a startup that improves human health over time by dramatically improving the security, accessibility, and sophistication of population genetics software and polygenic risk scores.
OrindaCA1 - 102024$500,000
Arini logo
Arini is an AI receptionist for dental practices that answers phone calls, and schedules appointments.
San FranciscoCA2 - 102024$500,000
Toma logo
Toma is a software company currently based in New York City, New York, United States. It has been founded in 2024 by Anthony Krivonos, Monik Pamecha, and Junyu Huang.
New YorkNY2 - 102024$500,000
Taiki logo
Taiki is an API that automatically pulls tax documents and data from payroll and financial institutions using AI.
San FranciscoCA1 - 102024$500,000
Airfront logo
Airfront automates the manual tasks directly from the inbox by using artificial intelligence.
San FranciscoCA1 - 102024$500,000
Just Words logo
Just words is a software company that makes it simple to create self-optimized content variations for emails and advertisements.
San FranciscoCA2 - 102024$500,000
Reprompt logo
Reprompt is the control panel for production AI systems.
South San FranciscoCA1 - 102024$1,000,000
Lucite logo
Lucite is a finance productivity software that automates research and presentation creation for investment bankers, investors, corporate finance teams, and consultants.
New YorkNY2 - 102024$500,000
Fan Cave logo
FanCave is the platform that allows all fans to directly offer recruits and participate in all opportunities with athletes.
North AttleboroughMA10 - 502024$500,000
Kabilah logo
Kabilah streamlines shift change for nurses with an AI-powered assistant that replaces paper reports.
StanfordCA1 - 102024$500,000
Amber AI logo
Amber is an extension of your post-sales team, providing context for each customer and action.
San FranciscoCA50 - 2002024$500,000
Edgetrace logo
EdgeTrace makes video data easily available and actionable for important businesses.
San FranciscoCA1 - 102024$500,000
Blume Benefits logo
Blume Benefits is an insurance broker management platform that converts complex insurance quotes into clear and concise formats.
San FranciscoCA1 - 102024$500,000
Corefin logo
Corefin is an open-source lending platform that enables technology businesses to create and market lending solutions.
San FranciscoCA1 - 102024$500,000
Retail Ready logo
RetailReady specializes in streamlining retail compliance through directed workflows that eliminate the need for traditional paper SOPs and spreadsheet tracking. By digitizing warehouse processes, which traditionally relied on extensive manuals, into a mor
AtlantaGA2 - 102024$3,800,000
GoldenBasis logo
GoldenBasis is a B2B fintech company that aims to help self-clearing firms receive account transfers with AI.
San FranciscoCA2 - 102024$500,000
Lumen Orbit logo
Lumen Space offers cloud computing and data relay to satellites in space. The company's mission is to accelerate downlink times by processing data in orbit.
RedmondWA2 - 102024$2,900,000
NCompass Technologies logo
nCompass Technologies is a platform for accelerating and hosting open-source and custom AI models. It offers low-latency AI deployment without rate-limiting. All with just one line of code.
San FranciscoCA2 - 102024$500,000
Tusk logo
Tusk is an AI coding agent that completes customer-reported issues from ticket to pull request. Engineering teams use Tusk to increase customer NPS while reducing context-switching.
San FranciscoCA1 - 102023$500,000
Quill AI logo
Quill AI is a company that specializes in the development of automation software for financial analysts and investment firms. Their AI-powered investor copilot serves as a personal assistant, helping to automate the job of a financial analyst. The company'
New YorkNY2 - 102023
Automat AI logo
Lasso offers robotic process automation for chrome using ChatGPT and computer vision.
San FranciscoCA2 - 102023$4,250,000
Granza Bio logo
Granza Bio is a company that developing cancer therapies based on human body's immune system.
San FranciscoCA2 - 102023$7,640,000
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 FranciscoCA5 - 102023$2,000,000
Operator logo
Operator makes it easy to connect and work with business data.
New YorkNY5 - 102023$150,000
Sola logo
We automate manual digital work, helping automation-minded teams create robust robotic agents to handle tedious tasks via RPA (Y Combinator S23).
New YorkNY5 - 202023$500,000
GigaML logo
We make high-quality finetuned models based on open-source LLMs
San FranciscoCA5 - 202023$3,600,000
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
Reform logo
The fastest way to develop modern logistics software
New YorkNY1 - 102023$500,000
OpenPipe logo
OpenPipe is an artificial intelligence platform that empowers software developers to construct datasets and refine prompts using a cost-effective model. The platform works by automatically capturing existing prompts and completions and then using them to f
San FranciscoCA2 - 102023$6,700,000
Constant logo
Constant is a private credit investment platform.
New YorkNY1 - 102023$500,000
TensorFuse logo
Tensorfuse makes it simple to deploy and manage LLM pipelines on your cloud.
San FranciscoCA5 - 102023$500,000
Tegon logo
Tegon is an artificial intelligence company that offers an open source platform for issue tracking.
San FranciscoCA1 - 102023$500,000
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 FranciscoCA10 - 5020232971137 EUR
Kobalt Labs logo
Kobalt Labs offers protected health information and personally identifiable information detection from unauthorized access.
New YorkNY2 - 102023
Pivot Robots logo
Pivot Robots combines off-the-shelf robots and vision sensors with our pioneering AI vision control software to enable industrial robots to adapt. Pivot Robots accomplish this by harnessing the most recent developments in core vision models.
San FranciscoCA1 - 102023$500,000
Powder logo
Powder is a financial services company currently based in Los Altos, California, United States. It has been founded in 2023 by Dominic Tully, Jeffrey Magder, and David Goerz.
LexingtonKY5 - 102023$5,500,000
Twenty logo
Twenty builds the modern salesforce, powered by the open source community.
San FranciscoCA5 - 102023
Repaint logo
Repaint is an early stage startup making a website builder with a heavy focus on design freedom and collaboration. Startup founders, designers, and small business owners use it to create professional websites.
HollandMI2 - 102023
RecipeUI logo
RecipeUI is an open source postman alternative for viewing and debugging GraphQL requests in Chrome and Firefox.
New YorkNY1 - 102023$500,000
Quest logo
Quest is an audio Q&A platform where experts can share advice and stories in short audio clips. The startup is focusing specifically on business advice early on and has over 10 hours of content from speakers at companies like YC and Google.
San FranciscoCA5 - 102023$125,000
Persana AI logo
Persana AI is an intelligent sales copilot that is powered by its own custom fine-tuned models.
San FranciscoCA2 - 102023$500,000
Olio Labs logo
Olio Labs utilizes AI for combo therapeutics, optimizing and minimizing side effects through automated discovery of protein interactions.
CA2 - 102023$4,200,000
Andy AI logo
Andy is AI software that completes documentation for nurses during home visits.
San FranciscoCA2 - 102023$500,000
PromptArmor logo
Security and compliance for LLM Applications & Agents
San FranciscoCA1 - 102023$500,000
Sero AI logo
Sero is an AI-powered moderation platform designed for both simple content moderation tasks like profanity detection and for complex investigations like child grooming.
San JoseCA2 - 102023$500,000
PeerDB logo
PeerDB is a Postgres-compatible SQL interface to seamlessly integrate multiple data-stores. It enables you to sync, transform and query data across your stores using simple SQL commands. PeerDB takes a datastore native approach in engineering — enabling 10
San FranciscoCA2 - 102023$4,100,000
Yuma AI logo
Empowering Shopify merchants with automated AI customer service, boosting agent productivity while slashing costs.
New YorkNY10 - 502023$4,300,000
Serial logo
Serial is software to help root cause manufacturing issues in seconds.
San FranciscoCA2 - 102023$500,000
LinkGrep logo
LinkGrep is an AI browser copilot that makes the browser team friendly.
San FranciscoCA1 - 102023$500,000
PropRise logo
PropRise provides access to real-time rental comps, source-motivated sellers, and underwrites efficiently to acquire more communities.
San FranciscoCA2 - 102023
Capi Money logo
Capi Money is digital payment platform that provides budgeting tools, expense tracking, investment analysis services.
WilmingtonDE2 - 102023
Campfire logo
Use Campfire to understand what each member wants from your community.
San FranciscoCA5 - 202023$3,500,000
Wattson Health logo
Medication errors cost the healthcare industry $40 billion each year, the largest contributor being the manual processes employed by pharmacies. Wattson Health's automation platform integrates with pharmacies' existing systems and enables them to fill pres
San FranciscoCA2 - 102023$500,000
CodeComplete logo
CodeComplete is an AI coding assistant for enterprises.
San FranciscoCA2 - 102023
Craftwork logo
Craftwork is a general contracting company that uses technology to simplify repair and renovation projects for homeowners.
CharlotteNC10 - 502023$10,000,000
Coldreach logo
Coldreach is a digital platform that generates hyper-personalized sales emails.
San FranciscoCA2 - 102023$500,000
SSOReady logo
SSOReady makes free, open source SDKs that help software developers offer SAML single sign-on to their customers.
San FranciscoCA2 - 102023$500,000
Simbie Health logo
Enabling women's health providers to start, grow, and operate their own practices.
DoverDE2 - 102023$500,000
CraftOS logo
CraftOS is a SAAS company that offers inventory tracking and POS tools for wineries.
San FranciscoCA1 - 102023$500,000
Gloo logo
Gloo is a data search engine that automatically computes multiple embeddings for a single document.
SeattleWA2 - 102023$500,000
Brew IT! logo
Brew IT! is a technology company that connects beer drinkers with their local breweries. We aim to enable breweries to meet the drinkers' needs with ease and convenience and in return provide a fascinating experience for both parties.
Mountain ViewCA2 - 102023$500,000
Argon AI logo
Argon AI is a platform that allows biopharmacy and life sciences experts to conduct complicated, data-driven operations using natural language. Argon AI helps professionals acquire detailed answers to inquiries about clinical trials, existing medicines, th
New YorkNY2 - 102023$6,015,000
CandorIQ logo
CandorIQ is the modern way to scale and manage your people spend. Through one easy, integrated platform, we automate and simplify headcount, pay strategy, and manage compensation for your workforce. Data-packed and expert-backed to help you hire and retain
San FranciscoCA5 - 102023$500,000
Gleam logo
Gleam Care offers Self-funded health plans for companies.
San FranciscoCA1 - 102023
Sweetspot logo
Sweetspot leverages AI to help businesses source, manage, and respond to government contracts.
2 - 102023$2,325,000
Santé logo
Santé provides liquor stores with custom inventory management, e-commerce, and industry-specific tools.
New YorkNY2 - 102023
Semantic Finance logo
Semantic Finance provides a real-time AI-powered news insights API for unpredicted events that affect the financial markets.
San FranciscoCA2 - 102023$500,000
Quantic logo
Quantic provides next-generation personalized, timely, and reliable data provider for sales teams.
San FranciscoCA2 - 102023$500,000
MantleBio logo
MantleBio is an operator of a medical technology company intended to build software to scale data-driven discovery for biotech.
San FranciscoCA2 - 102023
Sudocode logo
Sudocode is an AI platform with a specialized task force that converts your concepts into code seamlessly.
Mountain ViewCA2 - 102023
NewSwing Academies Global logo
NewSwing Academies is a distinguished global enterprise at the forefront of the golf and entertainment industry. Leveraging former connections and notable partnerships with Google, Microsoft, United Talent Agency, Endeavor Group Holdings, SilverLake, Drive
Los AngelesCA5,000 - 10,0002023$91,720,000
Wild Moose logo
Wild Moose assists on-call developers in determining the source of production incidents more quickly. Wild Moose accomplish this by providing a conversational AI that has been trained on their environment. LLM-based AI is specifically designed to answer q
San FranciscoCA2 - 102023$500,000
CloudCruise logo
Cloud Cruise is an AI-enabled RPA software to automate repetitive tasks like prospecting, data extraction or data entry
San FranciscoCA2 - 102023$500,000
Velorum Therapeutics logo
Velorum Therapeutics produces powerful cancer treatments that starve tumors.
South San FranciscoCA1 - 102023$500,000
Wuri logo
Wuri is an AI firm that transform web stories into captivating audio-visual novels.
San FranciscoCA1 - 102023$500,000
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 YorkNY10 - 502023$5,500,000
Garage logo
The garage enables fire agencies to acquire and sell used equipment in seconds rather than days. Garage Marketplace handles payments, freight, and financing, making purchasing and selling equipment simple and secure.
New YorkNY5 - 102023$500,000
Texel.ai logo
Texel.ai provides tools and APIs that allow you to encode or decode video and optimize AI models.
AustinTX2 - 102023$500,000
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