Companies195

Active61%

Acquired or public17%

Inactive22%

Y Combinator's directory lists 195 companies in the Winter 2019 batch: 118 Active, 34 Acquired, 0 Public and 43 Inactive. 22% of Winter 2019 is listed Inactive, against 23% across YC batches at least two years old, close to the YC average.

ActiveAcquiredPublicInactive

Statuses are Y Combinator's own listing in its public company directory, read on the date shown. YC's directory can drop companies altogether, so the Inactive counts here are a floor, not a full count of companies that stopped. Acquired and Public are as YC lists them; neither says anything about the price or the outcome for founders.

What the directory lists about Winter 2019

By the industry YC files each company under: B2B 81, Consumer 38, Healthcare 25, Fintech 22, Industrials 15, Education 7, Real Estate and Construction 5, Government 2.
Where 192 of the 195 companies say they are based, by the first location each lists: San Francisco, CA, USA (55), San Francisco (18), New York City, NY (11), Los Angeles, CA, USA (10), Boston, MA, USA (6), New York City, NY, USA (6), Seattle, WA, USA (5), Boston (4), and 56 other places.
YC marks 2 companies from this batch as top companies: Deel and Nowports.
Earlier names on the entries: 1910 (earlier 1910 Genetics); 54Gene (earlier Stack Diagnostics); Accept.inc (formerly BoardRE) (earlier Board and BoardRE); AccioJob (earlier AccioJob Private Limited); AI Insurance (earlier AIInsurance); Allo (earlier Allo Community); AllSome Fulfillment (earlier AllSome); AmpUp (earlier NAD Grid Corp); Ascen (earlier Modern Labor); Ashby (earlier reteam and Motion); Askdata (earlier INNAAS and Askdata (formerly INNAAS)); Atlas (earlier Point); AuroraQ (earlier QSpice Labs and Aurora Quantum Technologies (formerly known as QSpice Labs Inc.)); Autodial prev Qwest (earlier Qwest, qwest., Qwest Social Club, In The Room and In The Room, Inc.); Avalanche (earlier GeoPredict); and 95 more.
Status changes seen since tracking began on September 26, 2026: Doppler, Active to Acquired (seen October 15, 2026).

Every company in Winter 2019

Company	What they do	Status	Team
1910	Multimodal AI Platform for Modality Agnostic Drug Discovery™	Active	20
AccioJob	Offline-first tech skilling and placement for India	Active	120
AI Insurance	AI Insurance is the platform that runs insurance companies	Active	16
AllSome Fulfillment	Fulfillment platform to build Southeast Asia e-commerce operations	Active	18
Alpaca	API-first stock and crypto brokerage platform	Active	150
AmpUp	We make EV charging as simple and reliable as LED lights	Active	45
Ashby	All-in-one recruiting platform that empowers hiring excellence in…	Active	110
Atlas	Modern spend management & concierge.	Active	25
Aura Vision	In-store analytics AI assistant to fix your retail stores	Active	10
Autodial prev Qwest	Connect with people around you—IRL	Active	1
Avo	Fixing data quality in product analytics.	Active	10
Axel Travel	AI agent that saves you money on travel	Active	20
Bentocart	Last-mile delivery for perishables.	Active	3
Bottomless	Building the first sensor enabled marketplace for repeat purchases	Active	2
BrainKey	Brain Longevity	Active	20
Bunkerhill Health	Bunkerhill is a long-horizon agent for health systems	Active	30
Buy Me a Coffee	Helping creators monetize	Active	30
Canopy (was Encarte)	Encarte is building 1-click checkout for all online stores.	Active	2
Caribou	The autonomous tax firm	Active	10
Centaur	We Create Superior Data By Making Annotation Competitive	Active	45
Cityfurnish	Cityfurnish - Commitment-free furniture rentals for a better you!	Active	90
Community Phone Company	The phone that gives families peace of mind about aging parents	Active	101
Cosmic	Cosmic is an AI-powered headless CMS	Active	5
CredPal	CredPal is a buy now pay later company in Africa that allows…	Active	35
Cuanto	Building the operating system for developing world merchants	Active	4
Dagger	Develop your CI/CD pipelines as code and run them anywhere	Active	22
Deel	The all-in-one HR and payroll platform for global teams	Active	5000
Demodesk	AI-powered sales coaching	Active	25
Dockup	On demand ephemeral environments to run manual and automated tests.	Active	4
Dyneti Technologies	Reduce payment fraud	Active	3
Eclipse Foods	Eclipse Foods is building the future of dairy using micelles, the…	Active	—
Edyst	Edyst is a peer-to-peer online learning platform where students learn…	Active	11
Emi Labs	Helping great teams hire better frontline workers, faster.	Active	50
Excepgen		Active	3
Exly	One stop shop for creators to launch, manage & grow their knowledge…	Active	95
FIRST	The best way for any business to offer delivery.	Active	12
Flockjay	AI-driven learning, content, and coaching for sales teams	Active	10
FLOWER CO.	FLOWER CO. sells weed on the internet.	Active	30
Glide	Glide turns spreadsheets into beautiful, intelligent apps.	Active	46
Globe	coinbase for derivatives	Active	20
GoLinks	Intuitive, easy-to-remember short links - powered by AI.	Active	70
Handle	Simplifying Payments and Compliance for Construction Suppliers	Active	203
Heart Aerospace	Heart makes electric airplanes with an all-electric range of 250 miles	Active	50
In The Room	Connect with people around you—IRL	Active	1
Inito	Enabling better self care with at-home hormone tracking.	Active	100
Instapath Inc.	We built the world's first automated digital pathology lab.	Active	6
Intact Therapeutics	Smart gels for local drug delivery to the gut	Active	4
Intelline	Intelline makes the world's most efficient fuel agnostic engines for…	Active	3
JetPack Aviation	Flying motorcycles	Active	9
JuziBot	Intercom for WeChat, help companies to acquire, engage, retain…	Active	34
Kalshi	1st federally regulated exchange where people can trade on events	Active	125
Keeper	AI tax filing for complex returns	Active	16
Keynua	E-signatures with identity verification for Latin America	Active	15
Landed	Generative AI for frontline worker hiring	Active	50
Latchel	24/7 emergency maintenance department for property managers and…	Active	—
LEAH Labs	Living therapies for pets first, and their people next	Active	4
Lezzoo	Lezzoo is an on-demand delivery Superapp for Iraq.	Active	190
Maple Materials	We turn CO2 into battery-grade graphite and oxygen.	Active	6
Mars Auto	Autonomous trucks to fully automate long-haul freight shipping	Active	15
MedCrypt	MedCrypt gives medical device vendors cybersecurity features in a few…	Active	16
Middesk	We make it easier for B2B companies to transact with one another	Active	140
Mobot	Mobot is a QA-as-a-service platform using actual mechanical robots	Active	40
Mudrex	India's largest crypto investing paltform	Active	11
Nabis	Nabis is the largest licensed cannabis wholesale platform.	Active	700
NALA	Building Payments for the Next Billion.	Active	168
NaturAll Club	Frozen beauty products.	Active	17
Nebullam (DBA Clayton Farms)	We put farms inside restaurants, so customers get healthier food and…	Active	2
Nowports	The core engine of supply chain in LATAM	Active	550
Numero	Modern fundraising software for political campaigns and nonprofits.	Active	15
Okteto	Cloud Development Environments with one click	Active	30
Our World in Data	Research and data to make progress against the world’s largest…	Active	19
OutRival, Inc.	Outbound AI Agents for Education, Insurance, and Travel	Active	15
Overview	Reshaping industrial quality with AI, hardware, and software	Active	40
PatternFast (prior: Tailornova/Couturme)	The fashion product engineering intelligence	Active	23
PNOĒ	Enabling health professionals to prescribe clinical-grade wellness…	Active	70
Pools (fka Withfriends)	Pools is a memberships platform for event organizers	Active	2
Positive	Healthy packaged fresh food	Active	47
Postscript	The AI Retention Platform for Brands & Retailers	Active	180
Probably Genetic	Patient Intelligence Platform for Genetic Disease	Active	17
Prometheus	We use solar and wind power to make zero net carbon electrofuels	Active	25
Pronto	Ride-sharing for second-tier cities in Latin America.	Active	62
Pulse Active Stations Network	We are a connected network of smart health machines in India.	Active	10
Pyxai	An assessment tool that evaluates people to predict future success	Active	5
Ravn	Ravn is building a heads-up display for soldiers.	Active	10
rct AI	build AI NPCs	Active	40
Reelables	The Future of Supply Chain Data Tracking and Visibility	Active	—
Rune	Talk & play multiplayer games with your friends!	Active	3
Sapling.ai	Language models for enterprise applications.	Active	2
Schoolable	Tuition collection service for K-12 private schools in Africa	Active	10
SciTok	Platform for scientists to share their research via videos	Active	2
Shef	Shef is a Marketplace for Homemade Food	Active	70
Shipper	Southeast Asia’s e-commerce logistics and enablement platform	Active	600
Skill-lync	Online engineering college for India. Learn technical skills & get…	Active	3000
Sorting Robotics	We create automation technology for the cannabis industry.	Active	12
Spire Law	Tech enabled business and employment litigation law firm.	Active	10
Spring in Africa	Investing in innovation	Active	—
Sunsama	Daily planner for busy professionals	Active	7
Superb AI	Superb AI provides end-to-end computer vision MLOps platform	Active	80
Supernova	Design system platform joins developers and designers together	Active	20
Switchboard	Technology for Trucking	Active	24
Taali Inc	Taali is creating popcorn 2.0 from popped water lily seeds	Active	—
Taobotics	Autonomous robots for retails.	Active	11
Termius	Termius is an SSH client with team collaboration features	Active	35
The Juggernaut	The global community for the South Asia-curious	Active	5
Thrive Agric	ThriveAgric help Farmers in Africa access finance, insight and Markets	Active	227
Trexo Robotics	Exoskeletons to help people walk, starting with children	Active	30
Truora	Reliable background checks & fraud prevention tools for Latin America.	Active	80
Ultralight	Universal, Pure-GPU HTML Renderer	Active	1
Upsolve	Helping low-income Americans overcome debt and rebuild credit at…	Active	12
Valo	Cutting edge hydrofoil systems for boatbuilders	Active	3
Verto	Cross-Border Payments and FX Simplified	Active	170
Volta Labs, Inc.	Unlocking the utility of genomics for the world.	Active	50
VotingWorks	Non-profit building open-source voting machines for US elections.	Active	18
Wanderlog	Travel planner for researching, organizing, and mapping your trip	Active	5
WeatherCheck	WeatherCheck monitors properties for hail damage so that insurance…	Active	10
Windwalk	Windwalk is the industry leader in building, growing, and operating…	Active	25
XGenomes	XGenomes is building the sequencing technology of the future.	Active	6
YourChoice Therapeutics	YourChoice therapeutics is revolutionizing the contraceptive market…	Active	3
Accept.inc (formerly BoardRE)	BoardRE is a new type of mortgage company that upgrades any offer…	Acquired	80
Allure Systems	A.I. to create stunning fashion images for eCommerce.	Acquired	18
Ascen	EOR for the staffing industry	Acquired	30
Askdata	Frictionless Data	Acquired	17
Atomic Alchemy	We produce cancer-curing materials used in nuclear medicine.	Acquired	8
AXDRAFT	AXDRAFT helps corporations draft, negotiate and approve documents 10x…	Acquired	34
Balto	Acquired by FuboTV (NYSE: FUBO) - Contest automation software…	Acquired	5
Catch	Benefits for independent workers.	Acquired	18
Cocoon	Bring your most important groups closer together	Acquired	6
Convex	Software for the commercial services industry.	Acquired	110
Coursedog	Higher Ed's Best Friend - integrated academic operations software.	Acquired	100
Docbot		Acquired	—
Doorport	Acquired by Alarm.com - We make existing apartment access smart.	Acquired	3
Doppler	Secure secrets. Prevent breaches. Keep teams moving.	Acquired	25
Elph	Acquired by Brex. Building digital payments infrastructure.	Acquired	5
Forage	Online job simulations for companies to train, and then hire, students	Acquired	65
Fuzzbuzz	Fuzzing as a Service	Acquired	—
Geosite	Geosite is an enterprise SaaS platform for spatial data.	Acquired	40
Hatch	The AI CSR Platform	Acquired	73
Insight	The first extensible browser for iOS	Acquired	3
InterPrime	Safe & Secure Cash Management for Businesses	Acquired	3
Kovi	Making car ownership more inclusive, flexible and simple.	Acquired	890
Memfault	First IoT reliability platform for debugging, monitoring, OTA updates	Acquired	80
Pachama	Restoring nature to solve climate change.	Acquired	85
Preflight	No-code Web Apps testing for everyone	Acquired	5
Searchlight	Talent AI improving quality of hire	Acquired	20
Seawise Capital	Trade finance company for Indian exporters	Acquired	3
Shiok Meats	Shiok Meats is a cell-based clean shrimp company, the first of its…	Acquired	9
Slapdash	Work at the speed of thought	Acquired	6
Visly	Build React components visually	Acquired	6
Windsor	AI Powered Personalized Videos	Acquired	5
WorkClout	Safety & quality software for industrial sectors.	Acquired	6
ZeroDown	Find beautiful homes	Acquired	13
ZeroStorefront	#1 Data platform for restaurants. Acquired by Thanx	Acquired	7
54Gene	Precision medicine for Africans and the global population	Inactive	47
Adventurous Co	Disney meets Airbnb Experiences	Inactive	2
Allo	Allo is an app that helps neighboring families meet and help each…	Inactive	2
AuroraQ	Building the first practical, integrated quantum computer.	Inactive	1
Avalanche	Referral program SDK for startups	Inactive	1
Basement	The social network for your close friends.	Inactive	2
Basilica	Basilica is an API that embeds high-dimensional data like images and…	Inactive	2
Bensen	Online and phone ordering for restaurant takeout and delivery	Inactive	2
BlitzIQ	Note taking workspace for B2B sales teams	Inactive	—
Brick Health	Building infrastructure to expand scope and quality of virtual care	Inactive	1
Capture	All your notes, tasks, and files in one super-fast workspace.	Inactive	4
CareerTu	Online school for Chinese to learn in-demand digital skills	Inactive	15
Chaser	No code app builder.	Inactive	2
Cherry	Cherry lets employees choose their own workplace perks.	Inactive	2
Comradery	White-label Bookface for companies and communities!	Inactive	1
DailyDoctor	Daily telehealth care for people with COPD, CHF, hypertension, and…	Inactive	—
Datamode	Datamode (datamode.com) is a tool for engineers to instantly diagnose…	Inactive	1
DevFlight	Managed equipment data pipelines for manufacturers	Inactive	2
Docucharm	Automate paperwork by turning documents into structured data.	Inactive	2
Endpoint Health	Precision-first therapies	Inactive	23
Evo.Do	QA Bots for Games	Inactive	2
Frubana Inc	The everything store for restaurants in LATAM.	Inactive	384
Fuse	Unified API for financial data aggregators.	Inactive	7
Green Energy Exchange	We deliver affordable renewable energy direct to customers and are…	Inactive	3
Herald	A collaborative repository for user feedback.	Inactive	2
Hypnos	AI-powered sleep coach learns and optimizes your sleep	Inactive	3
Kopa	Find furnished rentals and compatible housemates for 1-12 month stays	Inactive	6
Mage	The safest way to buy and sell collectibles	Inactive	3
Maitian.ai	We make $1,000 Amazon Go stores.	Inactive	5
Parker	Parker is a digital bank.	Inactive	10
Pengram	Indoor navigation through augmented reality on your phone.	Inactive	2
PerShop	Your personal clothing store!	Inactive	2
Portal Entryways	Portal Entryways upgrades disabled-accessible doors so they can be…	Inactive	4
ResistanceBio	We solve drug resistance for cancer	Inactive	15
Simmer	We do reviews for dishes. Our app helps users find the very best…	Inactive	2
SpaceRyde	The Rocket Network: Sustainable & On-Demand Delivery Anywhere in Space	Inactive	33
Spiral Genetics	Large Scale Genomic Data Mining Software	Inactive	7
Sublime Black	Automating Cyber Security Incident Response Through Artificial…	Inactive	—
Tailor-ED	AI-powered corporate learning for accelerated employee growth & skill…	Inactive	10
Traverse Technologies	AI driven professional engineering firm	Inactive	6
Union Apartment	Furnished Co-living Apartments for International Students, here in…	Inactive	12
Vectordash	Play high-end PC games on your laptop by streaming them.	Inactive	3
Volk Wireless		Inactive	—

Company records kept on this page

These companies had a page of their own. Each held too little that was its own to stand alone, so everything it said is kept here, line by line with the record it came from, and the old address leads to this section.

SciTok

SciTok describes itself on its directory entry as: “Platform for scientists to share their research via videos.” (source)
SciTok is listed in the Winter 2019 batch, added to the directory on 2018-11-02, with the status Active. (source)
The entry gives a team of 2 and stage “Early”. (source)
Industry: Consumer. Sectors: Video. (source)
Based in San Francisco, CA, USA; Remote. (source)
Earlier names on the entry: Nettrons. (source)
Website given on the entry: www.scitok.com.
Xiaoyan Wu, Founder, is named as a founder on the entry. (source)

Taobotics

Taobotics describes itself on its directory entry as: “Autonomous robots for retails.” (source)
Taobotics is listed in the Winter 2019 batch, added to the directory on 2018-10-30, with the status Active. (source)
The entry gives a team of 11 and stage “Early”. (source)
Industry: Industrials › Manufacturing and Robotics. Sectors: Robotics, Retail Tech. (source)
Based in Shenzhen, Guangdong, China. (source)
Earlier names on the entry: Taobotics LLC (深圳朝闻道智能信息科技有限公司). (source)
Website given on the entry: www.taobotics.com.
Wenke Ma, Founder, is named as a founder on the entry. (source)
Xiangru (Mark) Nie, Founder, is named as a founder on the entry. (source)
Zhikang Wang, Founder, is named as a founder on the entry. (source)
Yong Zhao, Founder, is named as a founder on the entry. (source)

How this is measured

Measured 2026-11-10 from Y Combinator's company directory. Team size is the number YC lists for the company, where it lists one. Survival here means listed Active; Acquired and Public are shown separately because YC's listing does not say whether an acquisition was a good outcome.

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What happened to YC Winter 2019