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
1code (21st.dev)	W26	Orchestration layer for coding agents	Active	San Francisco, CA, USA	3	Serafim Korablev, Sergey Bunas	Reveal
Aurorin CAD	W26	We help hardware companies ship faster	Active	San Francisco, CA, USA	1	Michael Baron	Reveal
Bubble Lab	W26	Prompt once, automate forever.	Active	—	2	Selina Li, Zach Zhong	Reveal
Button Computer	W26	Button is the wearable AI that can talk.	Active	San Francisco, CA, USA	2	Chris Nolet, Ryan Burgoyne	Reveal
Canary	W26	The first AI QA engineer that understands your codebase	Active	San Francisco, CA, USA	4	Viswesh N G	Reveal
Corelayer	W26	AI on-call engineer that debugs using data	Active	San Francisco, CA, USA	2	Shipra Jha, Mitch Radhuber	Reveal
Inviscid AI	W26	Real-time Building Simulations to Optimize Energy and Operational…	Active	San Francisco, CA, USA	2	Kabir Jain, Ziming Qiu	Reveal
Martini	W26	Collaborative AI-native filmmaking for professionals	Active	San Francisco, CA, USA	2	Long Hoang, Koh Terai	Reveal
REV1	W26	Shortening hardware design cycles by automating post-CAD work	Active	San Francisco, CA, USA	2	Louis Liu, Alex Rivero	Reveal
Sentrial	W26	Production Monitoring for AI Products	Active	San Francisco, CA, USA	2	Neel Sharma, Anay Shukla	Reveal
Sonarly	W26	AI engineer to triage and fix your production alerts	Active	San Francisco, CA, USA	2	Dimittri Choudhury, Alexandre Klobb	Reveal
Synthetic Sciences	W26	AI co-scientists that run research end-to-end	Active	—	2	Aayam Bansal, Ishaan Gangwani	Reveal
Valgo	W26	Algorithmic safety validation tools for autonomy.	Active	San Mateo, CA, USA	2	Robert Moss, Sydney Katz	Reveal
Visibl Semiconductors	W26	AI agents for chip design.	Active	San Francisco, CA, USA	2	Jordon Kashanchi, Bryce Neil	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
Adam	W25	AI Powered CAD	Active	San Francisco, CA, USA	4	Zach Dive, Aaron Li	Reveal
Cedar	W25	The open source copilot for any app	Active	—	2	Jesse Li, Isabelle Ilyia	Reveal
Confident AI	W25	The Leading LLM Eval and Observability Platform for AI Quality	Active	San Francisco, CA, USA	7	Jeffrey Ip, Kritin Vongthongsri	Reveal
Corsair	W25	The TypeScript Integration ORM	Active	New York, NY, USA	2	Dev Jain	Reveal
Dalus	W25	AI-Powered Hardware System Design Software	Active	—	3	Sebastian Völkl, Eliot Khachi	Reveal
Delineate	W25	Agents for Accelerated Clinical Trial Design	Active	Boston, MA, USA	20	Emily Nieves, Jawad Iqbal	Reveal
Exla	W25	An SDK to run transformer models anywhere	Active	—	0	Pranav Nair, Viraat Das	Reveal
hud	W25	Platform for building RL environments and evals	Active	San Francisco, CA, USA	5	Jay Ram, Lorenss Martinsons	Reveal
Macadamia	W25	AI Agents for Complex Engineering Projects	Active	—	2	Abel Van Steenweghen, Brecht Pierreux	Reveal
Mastra	W25	The Javascript framework for building AI agents, from the Gatsby devs	Active	—	8	Sam Bhagwat, Abhi Aiyer, Shane Thomas	Reveal
Oki	W25	Personalized Updates on Company Progress	Active	San Francisco, CA, USA	2	Luofei Chen, Aayush Tyagi	Reveal
Onlook	W25	Cursor for Designers	Active	San Francisco, CA, USA	2	Daniel Farrell	Reveal
Peppr AI	W25	Self-improving knowledge base synthesizing scattered company data	Active	—	4	Sachitt Arora, Nitya Arora	Reveal
Promptless	W25	An AI teammate that automatically updates your customer-facing docs	Active	San Francisco, CA, USA	5	Prithvi Ramakrishnan, Frances Liu	Reveal
ReJot	W25	We turn complex API integrations into drop‑in full‑stack libraries	Active	Amsterdam, Netherlands	2	Wilco Kruijer, Jan Schutte	Reveal
Stillwind	W25	Autonomous Electrical Engineering	Active	Zürich, Switzerland	4	Linus Meierhöfer, Lukas Ego, Hannes Furmans, Josef Zoller	Reveal
Subtrace	W25	Zero code network tracer	Active	San Francisco, CA, USA	2	Adhityaa Chandrasekar, Sachin Sridhar	Reveal
superglue	W25	AI that fixes enterprise glue	Active	San Francisco, CA, USA	4	Adina Goerres, Stefan Faistenauer	Reveal
TrainLoop	W25	Reasoning Fine-Tuning	Active	San Francisco, CA, USA	6	Jackson Stokes, Mason Pierce	Reveal
Trim	W25	A foundation model for physics.	Active	San Francisco, CA, USA	3	Emanuel Gordis	Reveal
Truffle AI	W25	AWS for AI Agents	Active	San Francisco, CA, USA	2	Shaunak Srivastava, Rahul Karajgikar	Reveal
Wildcard	W25	Sell Products in ChatGPT Shopping	Active	—	2	Kaushik Mahorker	Reveal
Aether	W24	AI sales platform for home services	Active	San Francisco, CA, USA	8	Zayne Sagar, Shelby Bons	Reveal
Agentic Labs	W24	AI system design tools for dev teams	Active	New York, NY, USA	2	Maksim Ivanov	Reveal
Andon Labs	W24	Autonomous organizations without humans in the loop	Active	San Francisco, CA, USA	8	Lukas Petersson	Reveal
atopile	W24	We make tools to design electronics circuit boards with code	Active	San Francisco, CA, USA	5	Narayan Powderly	Reveal
Bilanc	W24	AI-Powered Engineering Productivity	Active	—	3	Samuel Akinwunmi	Reveal
camelAI	W24	AI Business Intelligence agent. Get actionable insights in minutes.	Active	San Francisco, CA, USA	3	Illiana Reed, Isabella Reed, Miguel Salinas	Reveal
Chunkr	W24	Open source API service to parse complex documents	Active	—	3	Mehul Chadda, Ishaan Kapoor, Akhilesh Sharma	Reveal
CodeAnt AI	W24	AI Code Health Platform	Active	San Francisco, CA, USA	10	Amartya Jha, Chinmay Bharti	Reveal
Decipher AI	W24	QA agents that write tests 10x faster with zero maintenance	Active	San Francisco, CA, USA	4	Michael Rosenfield, Rohan Das	Reveal
Draftaid	W24	Go from 3D models to CAD drawings using AI	Active	Toronto, ON, Canada	3	Mohammed Al-arnawoot, Abdullah Elqabbany, Tahsin Rahman	Reveal
Dragoneye	W24	Custom video detection models in less than 5 minutes	Active	New York, NY, USA	2	Alex Liao	Reveal
Duckie	W24	Build AI Support Agents in Minutes	Active	San Francisco, CA, USA	4	Valerie Li, Joel Ritossa	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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