Y Combinator companies API

June 4, 2026 · View on GitHub

This repository contains an unofficial API for Y Combinator companies fetched from the Y Combinator website's Algolia search index. It only includes publicly launched companies with pages on the Y Combinator website. It does not scrape the Y Combinator website, instead it uses the Algolia search index to fetch the companies in a GitHub Actions workflow that runs every day.

ℹ️ Metadata

API endpoint: https://yc-oss.github.io/api/meta.json

Last updated: June 4, 2026 at 2:47 AM
Companies: 5951
Batches: 50
Industries: 59
Tags: 332

💻 APIs

🏢 Companies

List of companies	API endpoint
All launched companies	https://yc-oss.github.io/api/companies/all.json
Top companies	https://yc-oss.github.io/api/companies/top.json
Black-founded companies	https://yc-oss.github.io/api/companies/black-founded.json
Hispanic/Latino-founded companies	https://yc-oss.github.io/api/companies/hispanic-latino-founded.json
Women-founded companies	https://yc-oss.github.io/api/companies/women-founded.json
Not-for-profit companies	https://yc-oss.github.io/api/companies/nonprofit.json
Companies currently hiring	https://yc-oss.github.io/api/companies/hiring.json
Companies with public application videos	https://yc-oss.github.io/api/companies/app-video-public.json
Companies with public demo day videos	https://yc-oss.github.io/api/companies/demo-day-video-public.json

🎓 Batches

Companies per batch

Batch	Count	API endpoint
Winter 2012	66	https://yc-oss.github.io/api/batches/winter-2012.json
Summer 2011	60	https://yc-oss.github.io/api/batches/summer-2011.json
Winter 2011	45	https://yc-oss.github.io/api/batches/winter-2011.json
Summer 2010	36	https://yc-oss.github.io/api/batches/summer-2010.json
Winter 2010	27	https://yc-oss.github.io/api/batches/winter-2010.json
Summer 2009	26	https://yc-oss.github.io/api/batches/summer-2009.json
Winter 2009	16	https://yc-oss.github.io/api/batches/winter-2009.json
Summer 2008	22	https://yc-oss.github.io/api/batches/summer-2008.json
Winter 2008	21	https://yc-oss.github.io/api/batches/winter-2008.json
Summer 2007	19	https://yc-oss.github.io/api/batches/summer-2007.json
Winter 2007	13	https://yc-oss.github.io/api/batches/winter-2007.json
Summer 2006	11	https://yc-oss.github.io/api/batches/summer-2006.json
Winter 2006	7	https://yc-oss.github.io/api/batches/winter-2006.json
Summer 2005	9	https://yc-oss.github.io/api/batches/summer-2005.json
Summer 2012	83	https://yc-oss.github.io/api/batches/summer-2012.json
Winter 2013	46	https://yc-oss.github.io/api/batches/winter-2013.json
Summer 2013	52	https://yc-oss.github.io/api/batches/summer-2013.json
Winter 2014	74	https://yc-oss.github.io/api/batches/winter-2014.json
Summer 2014	78	https://yc-oss.github.io/api/batches/summer-2014.json
Winter 2015	111	https://yc-oss.github.io/api/batches/winter-2015.json
Summer 2015	104	https://yc-oss.github.io/api/batches/summer-2015.json
Winter 2016	122	https://yc-oss.github.io/api/batches/winter-2016.json
Summer 2017	125	https://yc-oss.github.io/api/batches/summer-2017.json
Summer 2016	102	https://yc-oss.github.io/api/batches/summer-2016.json
Winter 2017	116	https://yc-oss.github.io/api/batches/winter-2017.json
Winter 2018	146	https://yc-oss.github.io/api/batches/winter-2018.json
Summer 2018	131	https://yc-oss.github.io/api/batches/summer-2018.json
Summer 2019	176	https://yc-oss.github.io/api/batches/summer-2019.json
Winter 2019	195	https://yc-oss.github.io/api/batches/winter-2019.json
Winter 2020	229	https://yc-oss.github.io/api/batches/winter-2020.json
Summer 2020	208	https://yc-oss.github.io/api/batches/summer-2020.json
Winter 2021	336	https://yc-oss.github.io/api/batches/winter-2021.json
Summer 2021	391	https://yc-oss.github.io/api/batches/summer-2021.json
Winter 2022	398	https://yc-oss.github.io/api/batches/winter-2022.json
Summer 2022	234	https://yc-oss.github.io/api/batches/summer-2022.json
Fall 2025	148	https://yc-oss.github.io/api/batches/fall-2025.json
Winter 2023	274	https://yc-oss.github.io/api/batches/winter-2023.json
Summer 2023	220	https://yc-oss.github.io/api/batches/summer-2023.json
Winter 2026	199	https://yc-oss.github.io/api/batches/winter-2026.json
Winter 2024	249	https://yc-oss.github.io/api/batches/winter-2024.json
Winter 2025	168	https://yc-oss.github.io/api/batches/winter-2025.json
Spring 2026	192	https://yc-oss.github.io/api/batches/spring-2026.json
Summer 2024	248	https://yc-oss.github.io/api/batches/summer-2024.json
Fall 2024	94	https://yc-oss.github.io/api/batches/fall-2024.json
Spring 2025	144	https://yc-oss.github.io/api/batches/spring-2025.json
Summer 2025	167	https://yc-oss.github.io/api/batches/summer-2025.json
Summer 2026	8	https://yc-oss.github.io/api/batches/summer-2026.json
Fall 2026	3	https://yc-oss.github.io/api/batches/fall-2026.json
Winter 2027	1	https://yc-oss.github.io/api/batches/winter-2027.json
Unspecified	1	https://yc-oss.github.io/api/batches/unspecified.json

🏭 Industries

Companies per industry

Industry	Count	API endpoint
Agriculture	30	https://yc-oss.github.io/api/industries/agriculture.json
Analytics	127	https://yc-oss.github.io/api/industries/analytics.json
Apparel and Cosmetics	50	https://yc-oss.github.io/api/industries/apparel-and-cosmetics.json
Asset Management	53	https://yc-oss.github.io/api/industries/asset-management.json
Automotive	21	https://yc-oss.github.io/api/industries/automotive.json
Aviation and Space	61	https://yc-oss.github.io/api/industries/aviation-and-space.json
B2B	3044	https://yc-oss.github.io/api/industries/b2b.json
Banking and Exchange	70	https://yc-oss.github.io/api/industries/banking-and-exchange.json
Climate	52	https://yc-oss.github.io/api/industries/climate.json
Construction	48	https://yc-oss.github.io/api/industries/construction.json
Consumer	871	https://yc-oss.github.io/api/industries/consumer.json
Consumer Electronics	44	https://yc-oss.github.io/api/industries/consumer-electronics.json
Consumer Finance	88	https://yc-oss.github.io/api/industries/consumer-finance.json
Consumer Health and Wellness	114	https://yc-oss.github.io/api/industries/consumer-health-and-wellness.json
Content	113	https://yc-oss.github.io/api/industries/content.json
Credit and Lending	73	https://yc-oss.github.io/api/industries/credit-and-lending.json
Defense	17	https://yc-oss.github.io/api/industries/defense.json
Diagnostics	56	https://yc-oss.github.io/api/industries/diagnostics.json
Drones	22	https://yc-oss.github.io/api/industries/drones.json
Drug Discovery and Delivery	57	https://yc-oss.github.io/api/industries/drug-discovery-and-delivery.json
Education	125	https://yc-oss.github.io/api/industries/education.json
Energy	47	https://yc-oss.github.io/api/industries/energy.json
Engineering, Product and Design	602	https://yc-oss.github.io/api/industries/engineering-product-and-design.json
Finance and Accounting	136	https://yc-oss.github.io/api/industries/finance-and-accounting.json
Fintech	631	https://yc-oss.github.io/api/industries/fintech.json
Food and Beverage	93	https://yc-oss.github.io/api/industries/food-and-beverage.json
Gaming	69	https://yc-oss.github.io/api/industries/gaming.json
Government	41	https://yc-oss.github.io/api/industries/government.json
Healthcare	676	https://yc-oss.github.io/api/industries/healthcare.json
Healthcare IT	142	https://yc-oss.github.io/api/industries/healthcare-it.json
Healthcare Services	73	https://yc-oss.github.io/api/industries/healthcare-services.json
Home and Personal	123	https://yc-oss.github.io/api/industries/home-and-personal.json
Housing and Real Estate	84	https://yc-oss.github.io/api/industries/housing-and-real-estate.json
Human Resources	82	https://yc-oss.github.io/api/industries/human-resources.json
Industrial Bio	33	https://yc-oss.github.io/api/industries/industrial-bio.json
Industrials	387	https://yc-oss.github.io/api/industries/industrials.json
Infrastructure	297	https://yc-oss.github.io/api/industries/infrastructure.json
Insurance	60	https://yc-oss.github.io/api/industries/insurance.json
Job and Career Services	19	https://yc-oss.github.io/api/industries/job-and-career-services.json
Legal	56	https://yc-oss.github.io/api/industries/legal.json
Manufacturing and Robotics	107	https://yc-oss.github.io/api/industries/manufacturing-and-robotics.json
Marketing	166	https://yc-oss.github.io/api/industries/marketing.json
Medical Devices	44	https://yc-oss.github.io/api/industries/medical-devices.json
Office Management	24	https://yc-oss.github.io/api/industries/office-management.json
Operations	145	https://yc-oss.github.io/api/industries/operations.json
Payments	124	https://yc-oss.github.io/api/industries/payments.json
Productivity	229	https://yc-oss.github.io/api/industries/productivity.json
Real Estate and Construction	158	https://yc-oss.github.io/api/industries/real-estate-and-construction.json
Recruiting and Talent	74	https://yc-oss.github.io/api/industries/recruiting-and-talent.json
Retail	130	https://yc-oss.github.io/api/industries/retail.json
Sales	136	https://yc-oss.github.io/api/industries/sales.json
Security	114	https://yc-oss.github.io/api/industries/security.json
Social	113	https://yc-oss.github.io/api/industries/social.json
Supply Chain and Logistics	133	https://yc-oss.github.io/api/industries/supply-chain-and-logistics.json
Therapeutics	63	https://yc-oss.github.io/api/industries/therapeutics.json
Transportation Services	27	https://yc-oss.github.io/api/industries/transportation-services.json
Travel, Leisure and Tourism	35	https://yc-oss.github.io/api/industries/travel-leisure-and-tourism.json
Unspecified	18	https://yc-oss.github.io/api/industries/unspecified.json
Virtual and Augmented Reality	20	https://yc-oss.github.io/api/industries/virtual-and-augmented-reality.json

🏷️ Tags

Companies per tag

Tag	Count	API endpoint
3D Printed Foods	1	https://yc-oss.github.io/api/tags/3d-printed-foods.json
3D Printing	12	https://yc-oss.github.io/api/tags/3d-printing.json
Advanced Materials	7	https://yc-oss.github.io/api/tags/advanced-materials.json
Advertising	45	https://yc-oss.github.io/api/tags/advertising.json
Aerospace	38	https://yc-oss.github.io/api/tags/aerospace.json
Agriculture	33	https://yc-oss.github.io/api/tags/agriculture.json
AI	825	https://yc-oss.github.io/api/tags/ai.json
AI Assistant	158	https://yc-oss.github.io/api/tags/ai-assistant.json
AI-Enhanced Learning	44	https://yc-oss.github.io/api/tags/ai-enhanced-learning.json
AI-powered Drug Discovery	37	https://yc-oss.github.io/api/tags/ai-powered-drug-discovery.json
AIOps	57	https://yc-oss.github.io/api/tags/aiops.json
Air Taxis	5	https://yc-oss.github.io/api/tags/air-taxis.json
Airlines	4	https://yc-oss.github.io/api/tags/airlines.json
Airplanes	11	https://yc-oss.github.io/api/tags/airplanes.json
Alternative Battery Tech	2	https://yc-oss.github.io/api/tags/alternative-battery-tech.json
Alternative Fuels	1	https://yc-oss.github.io/api/tags/alternative-fuels.json
Analytics	187	https://yc-oss.github.io/api/tags/analytics.json
Anti-Aging	7	https://yc-oss.github.io/api/tags/anti-aging.json
API	143	https://yc-oss.github.io/api/tags/api.json
APIs	10	https://yc-oss.github.io/api/tags/apis.json
Apparel	4	https://yc-oss.github.io/api/tags/apparel.json
AR	6	https://yc-oss.github.io/api/tags/ar.json
Architecture	4	https://yc-oss.github.io/api/tags/architecture.json
Art Trading Platforms	1	https://yc-oss.github.io/api/tags/art-trading-platforms.json
Artificial Intelligence	939	https://yc-oss.github.io/api/tags/artificial-intelligence.json
Assistive Tech	6	https://yc-oss.github.io/api/tags/assistive-tech.json
Augmented Reality	23	https://yc-oss.github.io/api/tags/augmented-reality.json
Auto Commerce	5	https://yc-oss.github.io/api/tags/auto-commerce.json
Automation	90	https://yc-oss.github.io/api/tags/automation.json
Automotive	23	https://yc-oss.github.io/api/tags/automotive.json
Autonomous Delivery	8	https://yc-oss.github.io/api/tags/autonomous-delivery.json
Autonomous Trucking	11	https://yc-oss.github.io/api/tags/autonomous-trucking.json
B2B	1106	https://yc-oss.github.io/api/tags/b2b.json
Banking as a Service	26	https://yc-oss.github.io/api/tags/banking-as-a-service.json
Batteryless IoT Sensors	1	https://yc-oss.github.io/api/tags/batteryless-iot-sensors.json
Beauty	10	https://yc-oss.github.io/api/tags/beauty.json
Big Data	27	https://yc-oss.github.io/api/tags/big-data.json
Billing	5	https://yc-oss.github.io/api/tags/billing.json
Biometrics	7	https://yc-oss.github.io/api/tags/biometrics.json
Bioplastic	3	https://yc-oss.github.io/api/tags/bioplastic.json
Biotech	139	https://yc-oss.github.io/api/tags/biotech.json
Biotechnology	15	https://yc-oss.github.io/api/tags/biotechnology.json
Blockchain	2	https://yc-oss.github.io/api/tags/blockchain.json
Booking	3	https://yc-oss.github.io/api/tags/booking.json
Calendar	7	https://yc-oss.github.io/api/tags/calendar.json
Call Center	9	https://yc-oss.github.io/api/tags/call-center.json
Cannabis	7	https://yc-oss.github.io/api/tags/cannabis.json
Carbon Capture and Removal	13	https://yc-oss.github.io/api/tags/carbon-capture-and-removal.json
Careers	5	https://yc-oss.github.io/api/tags/careers.json
Cashierless Checkout	5	https://yc-oss.github.io/api/tags/cashierless-checkout.json
Cell Therapy	5	https://yc-oss.github.io/api/tags/cell-therapy.json
Cellular Agriculture	6	https://yc-oss.github.io/api/tags/cellular-agriculture.json
Chat	5	https://yc-oss.github.io/api/tags/chat.json
Chatbot	10	https://yc-oss.github.io/api/tags/chatbot.json
Chatbots	3	https://yc-oss.github.io/api/tags/chatbots.json
China	3	https://yc-oss.github.io/api/tags/china.json
Civic Tech	8	https://yc-oss.github.io/api/tags/civic-tech.json
Clean Meat	1	https://yc-oss.github.io/api/tags/clean-meat.json
Climate	141	https://yc-oss.github.io/api/tags/climate.json
ClimateTech	30	https://yc-oss.github.io/api/tags/climatetech.json
Cloud Computing	49	https://yc-oss.github.io/api/tags/cloud-computing.json
Cloud Gaming	2	https://yc-oss.github.io/api/tags/cloud-gaming.json
Cloud Workload Protection	5	https://yc-oss.github.io/api/tags/cloud-workload-protection.json
Coding Bootcamps	2	https://yc-oss.github.io/api/tags/coding-bootcamps.json
Collaboration	45	https://yc-oss.github.io/api/tags/collaboration.json
Commercial Space Launch	6	https://yc-oss.github.io/api/tags/commercial-space-launch.json
Community	58	https://yc-oss.github.io/api/tags/community.json
Compliance	72	https://yc-oss.github.io/api/tags/compliance.json
Computational Storage	1	https://yc-oss.github.io/api/tags/computational-storage.json
Computer Vision	80	https://yc-oss.github.io/api/tags/computer-vision.json
Construction	65	https://yc-oss.github.io/api/tags/construction.json
Consumer	243	https://yc-oss.github.io/api/tags/consumer.json
Consumer Finance	32	https://yc-oss.github.io/api/tags/consumer-finance.json
Consumer Health Services	105	https://yc-oss.github.io/api/tags/consumer-health-services.json
Consumer Products	14	https://yc-oss.github.io/api/tags/consumer-products.json
Conversational AI	46	https://yc-oss.github.io/api/tags/conversational-ai.json
Conversational Banking	2	https://yc-oss.github.io/api/tags/conversational-banking.json
COVID-19	4	https://yc-oss.github.io/api/tags/covid-19.json
Creator Economy	33	https://yc-oss.github.io/api/tags/creator-economy.json
CRISPR	4	https://yc-oss.github.io/api/tags/crispr.json
CRM	21	https://yc-oss.github.io/api/tags/crm.json
Crowdfunding	9	https://yc-oss.github.io/api/tags/crowdfunding.json
Crowdsourcing	4	https://yc-oss.github.io/api/tags/crowdsourcing.json
Crypto / Web3	92	https://yc-oss.github.io/api/tags/crypto-web3.json
Cryptocurrency	11	https://yc-oss.github.io/api/tags/cryptocurrency.json
Cryptography	3	https://yc-oss.github.io/api/tags/cryptography.json
Cultivated Meat	2	https://yc-oss.github.io/api/tags/cultivated-meat.json
Culture	3	https://yc-oss.github.io/api/tags/culture.json
Cultured Meat	3	https://yc-oss.github.io/api/tags/cultured-meat.json
Customer Service	22	https://yc-oss.github.io/api/tags/customer-service.json
Customer Success	25	https://yc-oss.github.io/api/tags/customer-success.json
Customer Support	29	https://yc-oss.github.io/api/tags/customer-support.json
Customization	2	https://yc-oss.github.io/api/tags/customization.json
Cyber Insurance	1	https://yc-oss.github.io/api/tags/cyber-insurance.json
Cybersecurity	42	https://yc-oss.github.io/api/tags/cybersecurity.json
DAO	2	https://yc-oss.github.io/api/tags/dao.json
Data Engineering	101	https://yc-oss.github.io/api/tags/data-engineering.json
Data Labeling	19	https://yc-oss.github.io/api/tags/data-labeling.json
Data Science	32	https://yc-oss.github.io/api/tags/data-science.json
Data Visualization	31	https://yc-oss.github.io/api/tags/data-visualization.json
Databases	24	https://yc-oss.github.io/api/tags/databases.json
Dating	6	https://yc-oss.github.io/api/tags/dating.json
Deep Learning	39	https://yc-oss.github.io/api/tags/deep-learning.json
Deepfake Detection	1	https://yc-oss.github.io/api/tags/deepfake-detection.json
DeFi	13	https://yc-oss.github.io/api/tags/defi.json
Delivery	54	https://yc-oss.github.io/api/tags/delivery.json
Dental	5	https://yc-oss.github.io/api/tags/dental.json
Design	29	https://yc-oss.github.io/api/tags/design.json
Design Tools	59	https://yc-oss.github.io/api/tags/design-tools.json
Developer Tools	536	https://yc-oss.github.io/api/tags/developer-tools.json
DevOps	50	https://yc-oss.github.io/api/tags/devops.json
DevSecOps	34	https://yc-oss.github.io/api/tags/devsecops.json
Diagnostics	31	https://yc-oss.github.io/api/tags/diagnostics.json
Digital Freight Brokerage	2	https://yc-oss.github.io/api/tags/digital-freight-brokerage.json
Digital Health	112	https://yc-oss.github.io/api/tags/digital-health.json
Diversity & Inclusion	3	https://yc-oss.github.io/api/tags/diversity-and-inclusion.json
Documents	33	https://yc-oss.github.io/api/tags/documents.json
Drones	33	https://yc-oss.github.io/api/tags/drones.json
Drug Delivery	6	https://yc-oss.github.io/api/tags/drug-delivery.json
Drug discovery	32	https://yc-oss.github.io/api/tags/drug-discovery.json
E-Commerce	40	https://yc-oss.github.io/api/tags/e-commerce.json
Edge Computing Semiconductors	4	https://yc-oss.github.io/api/tags/edge-computing-semiconductors.json
Edtech	18	https://yc-oss.github.io/api/tags/edtech.json
Education	162	https://yc-oss.github.io/api/tags/education.json
eLearning	49	https://yc-oss.github.io/api/tags/elearning.json
Election Tech	2	https://yc-oss.github.io/api/tags/election-tech.json
Electric Vehicles	24	https://yc-oss.github.io/api/tags/electric-vehicles.json
Electronics	10	https://yc-oss.github.io/api/tags/electronics.json
Email	28	https://yc-oss.github.io/api/tags/email.json
Emerging Markets	9	https://yc-oss.github.io/api/tags/emerging-markets.json
Energy	41	https://yc-oss.github.io/api/tags/energy.json
Energy Storage	14	https://yc-oss.github.io/api/tags/energy-storage.json
Enterprise	106	https://yc-oss.github.io/api/tags/enterprise.json
Enterprise Software	119	https://yc-oss.github.io/api/tags/enterprise-software.json
Entertainment	50	https://yc-oss.github.io/api/tags/entertainment.json
eSports	2	https://yc-oss.github.io/api/tags/esports.json
Fashion	20	https://yc-oss.github.io/api/tags/fashion.json
Feedback	6	https://yc-oss.github.io/api/tags/feedback.json
Femtech	5	https://yc-oss.github.io/api/tags/femtech.json
Fertility Tech	8	https://yc-oss.github.io/api/tags/fertility-tech.json
Finance	92	https://yc-oss.github.io/api/tags/finance.json
FinOps	30	https://yc-oss.github.io/api/tags/finops.json
Fintech	702	https://yc-oss.github.io/api/tags/fintech.json
Fitness	20	https://yc-oss.github.io/api/tags/fitness.json
Food	10	https://yc-oss.github.io/api/tags/food.json
Food & Beverage	28	https://yc-oss.github.io/api/tags/food-and-beverage.json
Food Service Robots & Machines	11	https://yc-oss.github.io/api/tags/food-service-robots-and-machines.json
Food Tech	48	https://yc-oss.github.io/api/tags/food-tech.json
Fraud Detection	9	https://yc-oss.github.io/api/tags/fraud-detection.json
Fraud Prevention	5	https://yc-oss.github.io/api/tags/fraud-prevention.json
Fundraising	3	https://yc-oss.github.io/api/tags/fundraising.json
Furniture	6	https://yc-oss.github.io/api/tags/furniture.json
Fusion Energy	3	https://yc-oss.github.io/api/tags/fusion-energy.json
Gaming	86	https://yc-oss.github.io/api/tags/gaming.json
Gardening	1	https://yc-oss.github.io/api/tags/gardening.json
Gene Therapy	14	https://yc-oss.github.io/api/tags/gene-therapy.json
Generative AI	258	https://yc-oss.github.io/api/tags/generative-ai.json
Genetic Engineering	3	https://yc-oss.github.io/api/tags/genetic-engineering.json
Genomics	27	https://yc-oss.github.io/api/tags/genomics.json
Geographic Information System	4	https://yc-oss.github.io/api/tags/geographic-information-system.json
Ghost Kitchens	11	https://yc-oss.github.io/api/tags/ghost-kitchens.json
GovTech	47	https://yc-oss.github.io/api/tags/govtech.json
GraphQL	3	https://yc-oss.github.io/api/tags/graphql.json
Grocery	31	https://yc-oss.github.io/api/tags/grocery.json
Hard Tech	98	https://yc-oss.github.io/api/tags/hard-tech.json
Hardware	140	https://yc-oss.github.io/api/tags/hardware.json
Health & Wellness	44	https://yc-oss.github.io/api/tags/health-and-wellness.json
Health Insurance	26	https://yc-oss.github.io/api/tags/health-insurance.json
Health Tech	172	https://yc-oss.github.io/api/tags/health-tech.json
Healthcare	205	https://yc-oss.github.io/api/tags/healthcare.json
Healthcare IT	40	https://yc-oss.github.io/api/tags/healthcare-it.json
Home Automation	4	https://yc-oss.github.io/api/tags/home-automation.json
Home Services	12	https://yc-oss.github.io/api/tags/home-services.json
Housing	20	https://yc-oss.github.io/api/tags/housing.json
HR Tech	76	https://yc-oss.github.io/api/tags/hr-tech.json
Human Resources	21	https://yc-oss.github.io/api/tags/human-resources.json
Hydrogen Energy	4	https://yc-oss.github.io/api/tags/hydrogen-energy.json
Identity	15	https://yc-oss.github.io/api/tags/identity.json
Immigration	6	https://yc-oss.github.io/api/tags/immigration.json
Income Share Agreements	4	https://yc-oss.github.io/api/tags/income-share-agreements.json
India	36	https://yc-oss.github.io/api/tags/india.json
Indoor Mapping	2	https://yc-oss.github.io/api/tags/indoor-mapping.json
Industrial	28	https://yc-oss.github.io/api/tags/industrial.json
Industrial Workplace Safety	4	https://yc-oss.github.io/api/tags/industrial-workplace-safety.json
Infrastructure	112	https://yc-oss.github.io/api/tags/infrastructure.json
Insurance	73	https://yc-oss.github.io/api/tags/insurance.json
International	6	https://yc-oss.github.io/api/tags/international.json
Investing	58	https://yc-oss.github.io/api/tags/investing.json
Investments	7	https://yc-oss.github.io/api/tags/investments.json
IoT	44	https://yc-oss.github.io/api/tags/iot.json
IoT Security	2	https://yc-oss.github.io/api/tags/iot-security.json
Kids	9	https://yc-oss.github.io/api/tags/kids.json
Kubernetes	14	https://yc-oss.github.io/api/tags/kubernetes.json
Lab-on-a-chip	1	https://yc-oss.github.io/api/tags/lab-on-a-chip.json
Latin America	20	https://yc-oss.github.io/api/tags/latin-america.json
Legal	39	https://yc-oss.github.io/api/tags/legal.json
LegalTech	52	https://yc-oss.github.io/api/tags/legaltech.json
Lending	17	https://yc-oss.github.io/api/tags/lending.json
Lidar	1	https://yc-oss.github.io/api/tags/lidar.json
Live	5	https://yc-oss.github.io/api/tags/live.json
Livestock Health	1	https://yc-oss.github.io/api/tags/livestock-health.json
Location-based	2	https://yc-oss.github.io/api/tags/location-based.json
Logistics	131	https://yc-oss.github.io/api/tags/logistics.json
Machine Learning	231	https://yc-oss.github.io/api/tags/machine-learning.json
Manufacturing	88	https://yc-oss.github.io/api/tags/manufacturing.json
Maritime	3	https://yc-oss.github.io/api/tags/maritime.json
Market Research	18	https://yc-oss.github.io/api/tags/market-research.json
Marketing	109	https://yc-oss.github.io/api/tags/marketing.json
Marketplace	305	https://yc-oss.github.io/api/tags/marketplace.json
Media	44	https://yc-oss.github.io/api/tags/media.json
Medical Devices	69	https://yc-oss.github.io/api/tags/medical-devices.json
Medical Robotics	5	https://yc-oss.github.io/api/tags/medical-robotics.json
Mental Health	10	https://yc-oss.github.io/api/tags/mental-health.json
Mental Health Tech	39	https://yc-oss.github.io/api/tags/mental-health-tech.json
Messaging	42	https://yc-oss.github.io/api/tags/messaging.json
Metaverse	8	https://yc-oss.github.io/api/tags/metaverse.json
Microfluidics	5	https://yc-oss.github.io/api/tags/microfluidics.json
Microinsurance	3	https://yc-oss.github.io/api/tags/microinsurance.json
Mining	5	https://yc-oss.github.io/api/tags/mining.json
ML	20	https://yc-oss.github.io/api/tags/ml.json
Mobility	14	https://yc-oss.github.io/api/tags/mobility.json
Monitoring	16	https://yc-oss.github.io/api/tags/monitoring.json
Music	20	https://yc-oss.github.io/api/tags/music.json
Nanomedicine	5	https://yc-oss.github.io/api/tags/nanomedicine.json
Nanosensors	4	https://yc-oss.github.io/api/tags/nanosensors.json
Nanotechnology	10	https://yc-oss.github.io/api/tags/nanotechnology.json
Navigation	4	https://yc-oss.github.io/api/tags/navigation.json
Neobank	50	https://yc-oss.github.io/api/tags/neobank.json
Networks	4	https://yc-oss.github.io/api/tags/networks.json
Neurotechnology	15	https://yc-oss.github.io/api/tags/neurotechnology.json
Next-gen Network Security	5	https://yc-oss.github.io/api/tags/next-gen-network-security.json
NFT	4	https://yc-oss.github.io/api/tags/nft.json
NLP	21	https://yc-oss.github.io/api/tags/nlp.json
No-code	37	https://yc-oss.github.io/api/tags/no-code.json
Nonprofit	25	https://yc-oss.github.io/api/tags/nonprofit.json
Note-taking	5	https://yc-oss.github.io/api/tags/note-taking.json
Notifications	2	https://yc-oss.github.io/api/tags/notifications.json
Oncology	20	https://yc-oss.github.io/api/tags/oncology.json
Open Source	166	https://yc-oss.github.io/api/tags/open-source.json
Operations	36	https://yc-oss.github.io/api/tags/operations.json
Payments	148	https://yc-oss.github.io/api/tags/payments.json
Payroll	17	https://yc-oss.github.io/api/tags/payroll.json
Pediatrics	3	https://yc-oss.github.io/api/tags/pediatrics.json
Personalization	10	https://yc-oss.github.io/api/tags/personalization.json
Plant-based Meat	2	https://yc-oss.github.io/api/tags/plant-based-meat.json
Podcasts	7	https://yc-oss.github.io/api/tags/podcasts.json
Primary Care	8	https://yc-oss.github.io/api/tags/primary-care.json
Privacy	19	https://yc-oss.github.io/api/tags/privacy.json
Procurement	13	https://yc-oss.github.io/api/tags/procurement.json
Productivity	164	https://yc-oss.github.io/api/tags/productivity.json
Proptech	84	https://yc-oss.github.io/api/tags/proptech.json
Psychedelics	1	https://yc-oss.github.io/api/tags/psychedelics.json
Quantum Computing	4	https://yc-oss.github.io/api/tags/quantum-computing.json
Radar	4	https://yc-oss.github.io/api/tags/radar.json
Real Estate	84	https://yc-oss.github.io/api/tags/real-estate.json
Recommendation System	4	https://yc-oss.github.io/api/tags/recommendation-system.json
Recruiting	66	https://yc-oss.github.io/api/tags/recruiting.json
Referrals	2	https://yc-oss.github.io/api/tags/referrals.json
Regtech	20	https://yc-oss.github.io/api/tags/regtech.json
Reinforcement Learning	30	https://yc-oss.github.io/api/tags/reinforcement-learning.json
Remittances	6	https://yc-oss.github.io/api/tags/remittances.json
Remote	6	https://yc-oss.github.io/api/tags/remote.json
Remote Work	16	https://yc-oss.github.io/api/tags/remote-work.json
Renewable Energy	17	https://yc-oss.github.io/api/tags/renewable-energy.json
Restaurant Tech	14	https://yc-oss.github.io/api/tags/restaurant-tech.json
Retail	48	https://yc-oss.github.io/api/tags/retail.json
Retail Tech	18	https://yc-oss.github.io/api/tags/retail-tech.json
Reviews	3	https://yc-oss.github.io/api/tags/reviews.json
Ridesharing	2	https://yc-oss.github.io/api/tags/ridesharing.json
Robotic Process Automation	31	https://yc-oss.github.io/api/tags/robotic-process-automation.json
Robotic Surgery	3	https://yc-oss.github.io/api/tags/robotic-surgery.json
Robotics	114	https://yc-oss.github.io/api/tags/robotics.json
Rocketry	3	https://yc-oss.github.io/api/tags/rocketry.json
SaaS	1104	https://yc-oss.github.io/api/tags/saas.json
Sales	121	https://yc-oss.github.io/api/tags/sales.json
Sales Enablement	37	https://yc-oss.github.io/api/tags/sales-enablement.json
Satellites	20	https://yc-oss.github.io/api/tags/satellites.json
Scheduling	10	https://yc-oss.github.io/api/tags/scheduling.json
Search	18	https://yc-oss.github.io/api/tags/search.json
Security	89	https://yc-oss.github.io/api/tags/security.json
Security Orchestration, Automation and Response (SOAR)	1	https://yc-oss.github.io/api/tags/security-orchestration-automation-and-response-(soar).json
Self-Driving Vehicles	6	https://yc-oss.github.io/api/tags/self-driving-vehicles.json
Semiconductors	12	https://yc-oss.github.io/api/tags/semiconductors.json
SEO	4	https://yc-oss.github.io/api/tags/seo.json
Skincare	1	https://yc-oss.github.io/api/tags/skincare.json
Sleep Tech	9	https://yc-oss.github.io/api/tags/sleep-tech.json
Small Modular Reactors	3	https://yc-oss.github.io/api/tags/small-modular-reactors.json
Smart Clothing	5	https://yc-oss.github.io/api/tags/smart-clothing.json
Smart Home Assistants	7	https://yc-oss.github.io/api/tags/smart-home-assistants.json
Smart Locks	1	https://yc-oss.github.io/api/tags/smart-locks.json
SMB	17	https://yc-oss.github.io/api/tags/smb.json
SMS	7	https://yc-oss.github.io/api/tags/sms.json
Social	73	https://yc-oss.github.io/api/tags/social.json
Social Media	32	https://yc-oss.github.io/api/tags/social-media.json
Social Network	23	https://yc-oss.github.io/api/tags/social-network.json
Solar Power	19	https://yc-oss.github.io/api/tags/solar-power.json
Space Exploration	16	https://yc-oss.github.io/api/tags/space-exploration.json
Speech Recognition	6	https://yc-oss.github.io/api/tags/speech-recognition.json
Sports Tech	18	https://yc-oss.github.io/api/tags/sports-tech.json
Stocks	5	https://yc-oss.github.io/api/tags/stocks.json
Subscriptions	39	https://yc-oss.github.io/api/tags/subscriptions.json
Supply Chain	83	https://yc-oss.github.io/api/tags/supply-chain.json
Sustainability	14	https://yc-oss.github.io/api/tags/sustainability.json
Sustainable Agriculture	3	https://yc-oss.github.io/api/tags/sustainable-agriculture.json
Sustainable Fashion	9	https://yc-oss.github.io/api/tags/sustainable-fashion.json
Sustainable Tourism	3	https://yc-oss.github.io/api/tags/sustainable-tourism.json
Swarm AI	2	https://yc-oss.github.io/api/tags/swarm-ai.json
Swarm Robotics	1	https://yc-oss.github.io/api/tags/swarm-robotics.json
Synthetic Biology	30	https://yc-oss.github.io/api/tags/synthetic-biology.json
Talent Acquisition	7	https://yc-oss.github.io/api/tags/talent-acquisition.json
Team Collaboration	17	https://yc-oss.github.io/api/tags/team-collaboration.json
Telecommunications	27	https://yc-oss.github.io/api/tags/telecommunications.json
Telehealth	27	https://yc-oss.github.io/api/tags/telehealth.json
Telemedicine	29	https://yc-oss.github.io/api/tags/telemedicine.json
Therapeutics	46	https://yc-oss.github.io/api/tags/therapeutics.json
Ticketing	2	https://yc-oss.github.io/api/tags/ticketing.json
Time Series	3	https://yc-oss.github.io/api/tags/time-series.json
Trading	13	https://yc-oss.github.io/api/tags/trading.json
Transportation	37	https://yc-oss.github.io/api/tags/transportation.json
Travel	49	https://yc-oss.github.io/api/tags/travel.json
Trust & Safety	2	https://yc-oss.github.io/api/tags/trust-and-safety.json
Unmanned Vehicle	3	https://yc-oss.github.io/api/tags/unmanned-vehicle.json
Vertical Farming	2	https://yc-oss.github.io/api/tags/vertical-farming.json
Video	90	https://yc-oss.github.io/api/tags/video.json
Virtual Reality	13	https://yc-oss.github.io/api/tags/virtual-reality.json
VR Health	2	https://yc-oss.github.io/api/tags/vr-health.json
Warehouse Management Tech	13	https://yc-oss.github.io/api/tags/warehouse-management-tech.json
Weather	3	https://yc-oss.github.io/api/tags/weather.json
Web Development	24	https://yc-oss.github.io/api/tags/web-development.json
Women's Health	15	https://yc-oss.github.io/api/tags/women's-health.json
Workflow Automation	74	https://yc-oss.github.io/api/tags/workflow-automation.json

📀 Schema

Each endpoint (with the exception of meta.json) returns an array of objects. Each object has the following properties:

Property	Type	Description
`id`	number	The company's ID decided by Y Combinator
`name`	string	The company's name
`slug`	string	The company's human-readable slug
`former_names`	string[]	The company's former names, if the company was renamed
`small_logo_thumb_url`	string	The URL of the company's logo as a square hosted by Y Combinator
`website`	string	The company's website URL
`all_locations`	string	The company's locations separated by colons (;)
`long_description`	string	The company's long description
`one_liner`	string	The company's one-liner description
`team_size`	number	The company's team size
`highlight_black`	boolean	Whether the company is highlighted for Black founders
`highlight_latinx`	boolean	Whether the company is highlighted for Hispanic/Latino founders
`highlight_women`	boolean	Whether the company is highlighted for women founders
`industry`	string	The company's industry
`subindustry`	string	The company's subindustry
`launched_at`	number	The company's launch date as a Unix timestamp
`tags`	string[]	The company's tags
`top_company`	boolean	Whether the company is a top company
`isHiring`	boolean	Whether the company is hiring
`nonprofit`	boolean	Whether the company is a nonprofit
`batch`	string	The company's batch
`status`	string	The company's status
`industries`	string[]	The company's industries
`regions`	string[]	The company's regions
`stage`	string	The company's stage
`app_video_public`	boolean	Whether the company's app video is public
`demo_day_video_public`	boolean	Whether the company's demo day video is public
`app_answers`	object	The company's app answers
`question_answers`	boolean	Whether the company's question answers are public
`url`	string	The company's URL on the Y Combinator website
`api`	string	The company's API endpoint from this repository

YC also exposes signed S3 URLs for some application and demo day videos, but those URLs expire quickly. This API stores the durable app_video_public and demo_day_video_public booleans, and provides matching filtered endpoints, instead of publishing stale signed media URLs.

For example, the airbnb.json endpoint returns the following object:

{
  "id": 271,
  "name": "Airbnb",
  "slug": "airbnb",
  "former_names": [],
  "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/3e9a0092bee2ccf926e650e59c06503ec6b9ee65.png",
  "website": "http://airbnb.com",
  "all_locations": "San Francisco, CA, USA",
  "long_description": "Founded in August of 2008 and based in San Francisco, California, Airbnb is a trusted community marketplace for people to list, discover, and book unique accommodations around the world — online or from a mobile phone. Whether an apartment for a night, a castle for a week, or a villa for a month, Airbnb connects people to unique travel experiences, at any price point, in more than 33,000 cities and 192 countries. And with world-class customer service and a growing community of users, Airbnb is the easiest way for people to monetize their extra space and showcase it to an audience of millions.  \r\n\r\nNo global movement springs from individuals. It takes an entire team united behind something big. Together, we work hard, we laugh a lot, we brainstorm nonstop, we use hundreds of Post-Its a week, and we give the best high-fives in town. Headquartered in San Francisco, we have satellite offices in Dublin, London, Barcelona, Paris, Milan, Copenhagen, Berlin, Moscow, São Paolo, Sydney, and Singapore.",
  "one_liner": "Book accommodations around the world.",
  "team_size": 6132,
  "highlight_black": false,
  "highlight_latinx": false,
  "highlight_women": false,
  "industry": "Consumer",
  "subindustry": "Consumer -> Travel, Leisure and Tourism",
  "launched_at": 1326790856,
  "tags": ["Marketplace", "Travel"],
  "tags_highlighted": [],
  "top_company": true,
  "isHiring": false,
  "nonprofit": false,
  "batch": "W09",
  "status": "Public",
  "industries": ["Consumer", "Travel, Leisure and Tourism"],
  "regions": ["United States of America", "America / Canada"],
  "stage": "Growth",
  "app_video_public": false,
  "demo_day_video_public": false,
  "app_answers": null,
  "question_answers": false,
  "url": "https://www.ycombinator.com/companies/airbnb",
  "api": "https://yc-oss.github.io/api/batches/w09/airbnb.json"
}

Here are first 10 companies from the Top Companies API (https://yc-oss.github.io/api/companies/top.json):

Logo	Name	One-liner
	PlanGrid	Mobile applications for the construction industry.
	Gusto	Provides growing businesses with everything to take care of their team.
	Matterport	Turn physical objects and environments into 3D models in seconds.
	Amplitude	Digital Analytics Platform.
	Sendwave	Instant, no fee international remittances.
	Codecademy	The leading online learning platform for technical skills.
	Segment	Software and APIs to collect, clean, and control customer data.
	HelloSign	eSignature software for small and mid-market businesses.
	Fivestars	Customer loyalty and payments platform for small businesses.
	GOAT Group	Platform for the greatest products from the past, present and future.