Industry

YC Engineering, Product and Design Companies

439 Y Combinator engineering, product and design startups with verified founder contacts, batch info, and company data.

439

Companies

344

Active

Acquired

Public

YC Company Directory

50 companies

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Company	Batch	Description	Status	Location	Team	Founders	Reveal
SigmanticAI	S25	The Cursor for Chip Design - Delivering Silicon-Ready Chip Designs…	Active	Dublin, CA 94568, USA	2	Rohil Khare, Tamzid Razzaque	Reveal
stagewise	S25	The frontend coding agent for real codebases.	Active	—	2	Glenn Töws, Julian Goetze	Reveal
Stellon Labs	S25	Building tiny frontier AI models that run on edge devices	Active	San Francisco, CA, USA	2	Rohan Joshi, Divam Gupta	Reveal
Synthetic Society	S25	Synthetic Users to Simulate Real Users	Active	San Francisco, CA, USA	2	Kavan Doctor, Aaron Chew	Reveal
Topological	S25	Physics-based foundation models for CAD optimization.	Active	—	2	Nicole Ma, Zeyneb Kaya	Reveal
TraceRoot.AI	S25	Open source AI agents auto-fix your production bugs	Active	—	2	Xinwei He	Reveal
Wafer	S25	AI that makes AI fast	Active	San Francisco, CA, USA	4	Emilio Andere, Steven Arellano	Reveal
Aluna	S24	Data for biomedical AI	Active	San Francisco, CA, USA	3	David Chu	Reveal
camfer	S24	Building the world’s first AI mechanical engineer.	Active	San Francisco, CA, USA	4	Arya Bastani, Keaton Elvins, Roth Vann	Reveal
Cerulion	S24	Open source operating system for robots	Active	—	2	Lakshay Sharma	Reveal
Comfy Deploy	S24	ComfyUI for everyone on your team	Active	San Francisco, CA, USA	3	Nicholas Kao, Benny Kok	Reveal
Conductor	S24	Run a team of coding agents on your Mac	Active	San Francisco, CA, USA	4	Charlie Holtz, Jackson de Campos	Reveal
Coval	S24	Simulation & Evaluation for Voice and Chat Agents	Active	—	5	Brooke Hopkins	Reveal
DeepSim, Inc.	S24	An AI physics simulator for AI chip design	Active	Mountain View, CA, USA	4	Connor McClellan, Alexander Gabourie, Chuck Koroglu	Reveal
Diode Computers, Inc.	S24	Automate circuit board design using AI	Active	New York, NY, USA	3	Davide Asnaghi, Lenny Khazan	Reveal
dmodel	S24	Look inside the model	Active	—	6	Daniel Moon, Anish Tondwalkar	Reveal
Domu Technology Inc.	S24	AI Agents for collections	Active	San Francisco, CA, USA	15	Nick Diaz, Camila Zancanella	Reveal
Entangl	S24	Find & resolve issues in data center engineering & operations using AI	Active	San Francisco, CA, USA	7	Shapol M, Antanas Zilinskas	Reveal
Hamming AI	S24	Complete QA platform for voice agents	Active	—	8	Sumanyu Sharma	Reveal
Helium	S24	Self Improving Software	Active	San Francisco, CA, USA	7	Zach Witzel, Anish Doshi, Shishir Jakati	Reveal
HeroUI	S24	The UI framework for AI agents and developers to build beautiful apps.	Active	San Francisco, CA, USA	5	Junior Garcia	Reveal
Hestus, Inc.	S24	An AI-powered CAD software	Active	—	3	Sohrab Haghighat, Kevin Chu	Reveal
Hyrex	S24	The COLD Task Framework	Active	San Francisco, CA, USA	3	Mark Dawson, Trevor Reed	Reveal
ideate.xyz	S24	ideate.xyz is an AI-powered 3D art suite on the web	Active	San Francisco, CA, USA	2	Elliott Thompson	Reveal
Invaria	S24	The next generation logging and observability platform	Inactive	London, UK	3	Ben Hall, Sam Kramer, Alex Maass	Reveal
Laminar	S24	Understand why your AI agent breaks. Iterate fast to fix it.	Active	San Francisco, CA, USA	6	Robert Kim, Din Mailibay	Reveal
MagiCode	S24	A Reliable AI Frontend Engineer	Active	Stanford, CA, USA	3	Jeff He, Anirudh Sriram	Reveal
Maitai	S24	Reliable, self-improving enterprise AI	Active	—	6	Christian DalSanto, Ian Hoegen	Reveal
Outerport	S24	Turn diagrams, technical documents, and CAD into structured data	Active	San Francisco, CA, USA	4	Towaki Takikawa, Allen Wang	Reveal
Outerport	S24	Turn diagrams, technical documents, and CAD into structured data	Active	San Francisco, CA, USA	4	Towaki Takikawa, Allen Wang	Reveal
Pinnacle	S24	API & SDK for RCS (the next-generation of texting)	Active	San Francisco, CA, USA	2	Sean Roades, Ivan Zhang	Reveal
Polymet	S24	AI Product Designer	Active	—	3	Yusuf Hilmi	Reveal
Quetzal	S24	Simple, LLM-first translation and internationalization for software	Active	Oakland, CA, USA	2	John Thompson, Brendan Agliardo	Reveal
Random Labs	S24	Random labs is building long running autonomous coding agents.	Active	—	—	Kiran (Random Labs), Mihir Chintawar	Reveal
ReactWise	S24	AI Co-Pilot for Chemical Process Optimization	Active	San Francisco, CA, USA	2	Alexander Pomberger, Daniel Wigh	Reveal
RowBoat Labs	S24	Open-source AI-assisted agent builder	Active	San Francisco, CA, USA	3	Arjun Maheswaran, Ramnique Singh	Reveal
RunLocal AI	S24	The On-Device AI Development Platform	Active	London, UK	3	Ismail Salim, Ivan Chan	Reveal
Saphira AI	S24	Vanta for Hardware	Active	San Francisco, CA, USA	6	Akshay Chalana, Oscar Avatare	Reveal
Simplex	S24	Production-grade web agents.	Active	San Francisco, CA, USA	2	Shreya Karpoor, Marco Nocito	Reveal
Spur	S24	Spur is your AI QA Engineer. Test your websites with natural language.	Active	San Francisco, CA, USA	8	Sneha Sivakumar, Anushka Nijhawan	Reveal
Storia AI	S24	Open source AI copilot that knows your company's code and its context	Active	Millbrae, CA, USA	2	Julia Turc	Reveal
The Synthesis Company	S24	100x faster scientific evidence synthesis	Active	San Francisco, CA, USA	3	Cyrus Nouroozi, Amir Mehr	Reveal
Unsloth AI	S24	Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs.	Active	San Francisco, CA, USA	8	Daniel Han, Michael Han	Reveal
Vibe	S24	Making everyone a software engineer	Active	San Francisco, CA, USA	2	Ray Morgan, Katia Bazzi	Reveal
Void	S24	The open source Cursor alternative	Active	San Francisco, CA, USA	2	Andrew Pareles, Mathew Pareles	Reveal
Voker	S24	Analytics for AI Agents	Active	Los Angeles, CA, USA	6	Tyler Postle, Alex Rudolph	Reveal
Baserun	S23	Observability and evaluation platform for LLM apps.	Active	San Francisco, CA, USA	2	Effy Zhang	Reveal
Briefer	S23	The collaborative data platform.	Inactive	São Paulo, State of São Paulo, Brazil	2	Lucas da Costa, Lucas Vieira	Reveal
Bronco AI	S23	AI for ASIC Design Verification	Active	San Francisco, CA, USA	5	David Zhi LuoZhang, Jeffrey Pan	Reveal
Continue	S23	Ship as fast as you code	Active	San Francisco, CA, USA	9	Ty Dunn, Nate Sesti	Reveal

Batch Distribution

WW2614 WW2524 WW2440 WW2342 WW2225 WW2128

Status Breakdown

Active344 Acquired52 Inactive42 Public1

Top Locations

San Francisco212 New York37 London10 Los Angeles7 Mountain View6 Toronto5

About YC Engineering, Product and Design Companies

Y Combinator has funded 439 engineering, product and design companies since its founding in 2005. These startups span from early-stage pre-launch to publicly traded companies, making YC one of the most prolific backers of engineering, product and design innovation globally.

344 of these companies are currently active. 52 have been acquired. 1 have gone public. VCBacked tracks verified founder contact information, team sizes, and company status for every YC engineering, product and design startup.

Related Industries

B2B641 Industrials89 Consumer80 Healthcare78 Fintech65 Infrastructure64 Productivity38 Manufacturing and Robotics30

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