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Active YC Companies

5,056 Y Combinator companies with active status. Browse founder contacts, batch info, and company data.

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YC Company Directory

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Company	Batch	Description	Status	Location	Team	Founders	Reveal
StableBrowse	X26	Building the Data Infrastructure layer for Physical AI.	Active	San Francisco, CA, USA	3	Sarthak Awasthi, Jay Mehta, Deepit Shah, Somansh Shah	Reveal
Stage	X26	Code review platform for humans and agents	Active	San Francisco, CA, USA	2	Dean Stratakos, Charles Pan	Reveal
Standard Signal	X26	Hedge fund where AI researches and executes every trade end-to-end	Active	New York City, NY, USA	1	Michael Royzen	Reveal
Standout	X26	Agentic hiring marketplace	Active	San Francisco, CA, USA	5	Alexis Aftalion, Witold de La Chapelle	Reveal
Superlog	X26	Make software self-healing	Active	San Francisco, CA, USA	2	Nicolò Magnante, Arseniy Shishaev	Reveal
Superset	X26	Building self-improving software	Active	San Francisco, CA, USA	3	Kiet Ho, Satya Patel, Avi Peltz	Reveal
Surtr Defense Systems	X26	The hardware-agnostic operating system for drone defense	Active	San Francisco, CA, USA	2	Anshul Ahluwalia, Cameron Fiore	Reveal
Synphony	X26	robots & software for farms	Active	San Francisco, CA, USA	10	Sean Wu, Lucas Amlicke	Reveal
Taiga	X26	Autonomous medical billing	Active	San Francisco, CA, USA	2	Nanda Guntupalli, Adam Wax	Reveal
TakeCareOS	X26	AI-native operating system for long term care providers	Active	San Francisco, CA, USA	1	Ragav Sachdeva	Reveal
Tasklet	X26	Agents that own the work	Active	San Francisco, CA, USA	8	Jonny Dimond, Andrew Lee	Reveal
tday.com	X26	AI that turns your product into on-brand marketing content	Active	San Francisco, CA, USA	2	Cyrus Kelly, David McDonough, Shyamsundar Shrestha	Reveal
Tenet Industries	X26	Low-cost, mass-producible defense systems	Active	Stockholm, Stockholm County, Sweden	3	Emil Falk, Fabian Andersson, Hugo Frisk	Reveal
TesterArmy	X26	Test your app with AI, catch bugs before users do	Active	San Francisco, CA, USA; Remote	4	Szymon Rybczak, Oskar Kwaśniewski	Reveal
Tolmo	X26	Tolmo is the AI security platform that secures every layer of cloud…	Active	San Francisco, CA, USA	12	Pierre Betouin, Vladimir de Turckheim, Jean-Baptiste Aviat	Reveal
transload	X26	Measure freight with security cameras	Active	San Francisco, CA, USA	3	Julius Scheel, Nils Börner, Jago Wahl-Schwentker	Reveal
Trellis	X26	Agents that run short-term rental operations end-to-end	Active	San Francisco, CA, USA	5	Lodovico Benvenuti, Jan Sahagun	Reveal
Twolabs	X26	Humanoid robot platform for builders.	Active	San Francisco, CA, USA	2	Sardor Rahmatulloev, Danyal Ahmad	Reveal
Uno Wallet	X26	The AI mobile wallet that replaces Apple Pay	Active	San Francisco, CA, USA	2	Mordi Shadpour, Saket Joshi	Reveal
Userlens	X26	Let agents talk to your customers	Active	San Francisco, CA, USA	4	Ankur Dahama, Hai Ta	Reveal
ValCtrl	X26	ValCtrl is building the only intelligent prediction market	Active	New York City, NY, USA	2	Gaurav Paliwal, Sarth Garg	Reveal
Voquill	X26	The agentic OS for medical labs	Active	San Francisco, CA, USA	3	Michael Gibson, Henry Habib, Josiah Saunders	Reveal
Walter	X26	AI Employee for Manufacturing Operations	Active	San Francisco, CA, USA	—	Nikolas Keller, Lukas Postulka	Reveal
Wato	X26	The control point for AI agents at work.	Active	San Francisco, CA, USA	2	Arihan Varanasi, Rahul Rejeev	Reveal
Wealor	X26	AI-native platform for wealth managers	Active	San Francisco, CA, USA	—	Karim Bouri, Pierre Depuydt	Reveal
YouArt	X26	Patreon for AI Originals	Active	San Francisco, CA, USA	3	Harry Zheng, Edward Ma, Keith Zhang	Reveal
Zibra Labs	X26	Distributed runtime for AI workloads at scale	Active	San Francisco, CA, USA	2	Ibrahim Rabbani, Zac Policzer	Reveal
a0.dev	W25	We make mobile apps using AI.	Active	San Francisco, CA, USA	3	Seth Setse, Ayomide Omolewa	Reveal
A1Base	W25	Twilio for AI Agents	Active	San Francisco, CA, USA	2	Pennie Huang	Reveal
A1Zap by A1Base	W25	The social network layer for AI apps	Active	San Francisco, CA, USA	2	Pasha Rayan, Pennie Huang	Reveal
Adam	W25	AI Powered CAD	Active	San Francisco, CA, USA	4	Zach Dive, Aaron Li	Reveal
AfterQuery	W25	Applied research lab curating data solutions for foundation model…	Active	San Francisco, CA, USA	30	Carlos Georgescu, Spencer Mateega	Reveal
Agentin AI	W25	AI Agents that automate enterprise software processes	Active	San Francisco, CA, USA	2	Sankeerth Rao Karingula, Sankeerth Rao Karingula	Reveal
Agentin AI	W25	AI Agents that automate enterprise software processes	Active	San Francisco, CA, USA	2	Sankeerth Rao Karingula	Reveal
Alice.tech	W25	AI-driven exam prep	Active	Copenhagen, Denmark	5	Kim Rants	Reveal
Alice.tech	W25	AI-driven exam prep	Active	Copenhagen, Denmark	5	Kim Rants	Reveal
Altrina	W25	The SOP Automation Platform	Active	Menlo Park, CA, USA	4	Mo Nasir, Harvey Hu	Reveal
Amby Health	W25	The health coach that texts you first	Active	San Francisco, CA, USA	2	Yos Wagenmans, Timmy Dang	Reveal
Archon	W25	We help software companies sell to government.	Active	San Francisco, CA, USA	3	George Parks	Reveal
Artifact	W25	An Collaborative, AI-native IDE for Hardware Engineers	Active	Los Angeles, CA, USA	4	Antony Samuel, Corbin Klett	Reveal
Artificial Societies	W25	We build networks of AIs to simulate high-value audiences	Active	London, England, United Kingdom	12	James He, Patrick Sharpe	Reveal
assistant-ui	W25	Open Source React.js Library for AI Chat	Active	San Francisco, CA, USA	3	Simon Farshid	Reveal
Asteroid	W25	The integration layer for healthcare: EHRs, payer portals & more	Active	San Francisco, CA, USA	8	David Mlcoch, Joe Hewett, David Mlčoch	Reveal
Astro	W25	The world’s first AI energy developer	Active	—	1	Alex Fuster	Reveal
AthenaHQ	W25	Get Your Brand Discovered on AI Search.	Active	San Francisco, CA, USA	12	Andrew Yan, Alan Yao	Reveal
AthenaHQ	W25	Be the Answer in AI Search - AI SEO across SEO, GEO & AEO	Active	San Francisco, CA, USA	12	Andrew Yan, Alan Yao	Reveal
awen	W25	We are rebuilding photoshop with an AI-voice interface.	Active	—	3	Thibault Henriet	Reveal
awen	W25	awen translates intent into exceptional visuals through conversation	Active	Paris, Île-de-France, France; Remote	6	Thibault Henriet	Reveal
Axal	W25	We design, assemble, and test custom PCBs fast.	Active	San Francisco, CA, USA	3	Samai Patel, Nand Vinchhi	Reveal
Axal	W25	Automate Data Entry From Inbox to ERP	Active	San Francisco, CA, USA	2	Samai Patel, Nand Vinchhi	Reveal