Industry

YC Infrastructure Companies

303 Y Combinator infrastructure startups with verified founder contacts, batch info, and company data.

303

Companies

240

Active

Acquired

Public

YC Company Directory

50 companies

Export All

Company	Batch	Description	Status	Location	Team	Founders	Reveal
Airweave	X25	The open-source context retrieval layer for agents	Active	San Francisco, CA, USA	7	Lennert Jansen, Rauf Akdemir	Reveal
Aravolta	X25	Software to monitor, control, and optimize data centers.	Active	San Francisco, CA, USA	4	Margarita Groisman, Jack Sutton	Reveal
Naïve	X25	Autonomous Company Infrastructure	Active	San Francisco, CA, USA	8	Sean Dorje, Dennis Zax	Reveal
ParaQuery	X25	Managed GPU-accelerated Spark + SQL at 2x speed and half the cost	Active	New York City, NY, USA; Remote	1	Win Wang	Reveal
RunRL	X25	Reinforcement learning as a service	Active	San Francisco, CA, USA	2	Andrew Gritsevskiy	Reveal
Sixtyfour	X25	Intelligence Infrastructure on People and Entities	Active	San Francisco, CA, USA	12	Saarth Shah, Christopher Price	Reveal
Butter	W25	Muscle Memory Cache for Agents	Active	—	2	Erik Dunteman	Reveal
Exla	W25	Building agents that reads logs and fixes issues on your behalf.	Active	San Francisco, CA, USA	2	Pranav Nair, Viraat Das	Reveal
Flowtel	W25	The AI Voice agents for hotels	Active	San Francisco, CA, USA	5	Eylon Miz	Reveal
Mundo AI	W25	High Quality Multilingual Training Data for AI Models	Active	Vancouver, BC, Canada	30	Jason Liao, Naijide Anwaer, Garreth Lee, Kenneth Wu	Reveal
TensorPool	W25	Vercel For GPUs	Acquired	San Francisco, CA, USA	3	Tycho Svoboda, Joshua Martinez, Hlumelo Notshe	Reveal
ZeroEntropy	W25	Artificial Specialized Intelligence	Acquired	San Francisco, CA, USA	6	Ghita Houir Alami, Nicholas Pipitone, Ghita Alami	Reveal
ZeroEntropy	W25	High accuracy search API over unstructured data.	Active	—	2	Ghita Houir Alami, Nicholas Pipitone	Reveal
14.ai	W24	AI Customer Service Agency for Your B2C Business	Active	San Francisco, CA, USA	3	Marie Schneegans, Michael Fester	Reveal
Blacksmith	W24	The fastest way to run your GitHub Actions	Active	—	3	Aditya (JP) Jayaprakash, Aditya Maru, Aayush Shah	Reveal
Celest	W24	The Vercel of Flutter	Inactive	San Francisco, CA, USA	1	Dillon Nys	Reveal
Downlink	W24	Make your LLMs 3x faster.	Active	San Francisco, CA, USA	1	TJ Murphy	Reveal
Engines	W24	Setup any repo with one command	Inactive	San Francisco, CA, USA	2	Josh Valdez, Jet Zhou	Reveal
Guide Labs	W24	Frontier models and agents you can learn from, audit, and steer.	Active	San Francisco, CA, USA	6	Julius Adebayo, Fulton Wang	Reveal
Hatchet	W24	The orchestration platform for teams who ship.	Active	New York City, NY, USA	7	Alexander Belanger, Gabe Ruttner	Reveal
PointOne	W24	AI Time Platform for Law Firms	Active	New York City, NY, USA	35	Katon Luaces, Jeremy Ben-Meir	Reveal
Respan	W24	Self-driving observability, evals, and gateway for AI agents	Active	San Francisco, CA, USA	23	Andy Li, Raymond Huang	Reveal
ROE	W24	AI for risk and compliance	Active	San Francisco, CA, USA	9	Richard Meng	Reveal
Trieve	W24	All-in-one API for search, RAG, & recommendations	Acquired	San Francisco, CA, USA	7	Nick Khami, Denzell Ford	Reveal
Ubicloud	W24	Open source alternative to AWS	Active	San Francisco, CA, USA	15	Umur Cubukcu, Ozgun Erdogan, Daniel Farina	Reveal
Ubicloud	W24	Open source alternative to AWS	Active	—	15	Umur Cubukcu, Ozgun Erdogan, Daniel Farina	Reveal
AgentMail	S25	Email Inboxes for AI Agents	Active	San Francisco, CA, USA	10	Haakam Aujla, Michael Kim, Adi Singh	Reveal
Dedalus Labs	S25	Compute substrate for AI agents	Active	San Francisco, CA, USA	10	Cathy Di, Windsor Nguyen, Catherine Di	Reveal
DeepAware AI	S25	Help AI data centers unlock more compute and become more efficient	Active	San Francisco, CA, USA	2	Jerry Huang, Stela Tong	Reveal
Imprezia	S25	The World's First AI Ad Network.	Active	San Francisco, CA, USA	4	Bishesh Khadka	Reveal
Kernel	S25	Crazy fast, open source infra for AI agents to use the Internet	Active	San Francisco, CA, USA	6	Catherine Jue, Rafael Garcia	Reveal
KERNEL	S25	Crazy fast, open source infra for AI agents to use the Internet	Active	San Francisco, CA, USA	6	Catherine Jue, Rafael Garcia	Reveal
Luminal	S25	Making AI run fast on any hardware.	Active	San Francisco, CA, USA	7	Joe Fioti, Matthew Gunton, Jake Stevens	Reveal
Manufact	S25	Cloud infrastructure for MCP servers and Claude / ChatGPT apps.	Active	San Francisco, CA, USA	6	Pietro Zullo, Luigi Pederzani	Reveal
Metis	S25	Infrastructure to build reliable agents	Acquired	San Francisco, CA, USA; Remote	13	Aryan Shah, Aayush Sheth, Marcus Yearwood	Reveal
Modelence	S25	Build production-ready apps with AI	Active	San Francisco, CA, USA; Remote	3	Aram Shatakhtsyan, Eduard Piliposyan	Reveal
Nuntius	S25	Making Models Follow Rules.	Inactive	San Francisco, CA, USA	2	Abhijay Rana	Reveal
Pangolin	S25	Identity-aware VPN and proxy for remote access to anything, anywhere.	Active	San Francisco, CA, USA	2	Milo Schwartz, Owen Schwartz	Reveal
Relling	S25	RL and Data Infrastructure for Robotics & World Models	Active	San Francisco, CA, USA	—	Jai Relan, Anya Singh	Reveal
Riverbank	S25	Infrastructure Cartography	Active	Boston, MA, USA	1	Carter Pry	Reveal
truthsystems	S25	Automatically blocking risky behavior with real-time governance agents	Active	San Francisco, CA, USA	6	Alex Mac, Nam Nguyen	Reveal
truthsystems	S25	Automatically blocking risky behavior with real-time governance agents	Active	San Francisco, CA, USA	3	Alex Mac, Nam Nguyen	Reveal
Brickanta	F25	Agentic AI for Society Builders	Active	Stockholm, Stockholm County, Sweden	11	Lucas Otterling, Linus Bein Fahlander, Linus Fahlander	Reveal
Brickanta	F25	Construction's AI platform for bid analysis, estimation and…	Active	Stockholm, Sweden	8	Lucas Otterling, Linus Bein Fahlander	Reveal
Castari	F25	Vercel for AI Agents – One click deploy for the Claude Agent SDK	Active	—	3	Jacob Wright, Cambree Bernkopf	Reveal
Dome	F25	A unified API for prediction markets, like Kalshi and Polymarket	Inactive	—	2	Kurush Dubash, Kunal Roy	Reveal
Hyperspell	F25	Your Company Brain	Active	San Francisco, CA, USA	8	Conor Brennan-Burke, Manu Ebert, Conor Burke	Reveal
s2.dev	F25	API for unlimited, durable, real-time streams	Active	San Francisco, CA, USA	5	Shikhar Bhushan, Stephen Balogh, Dwarak Govind Parthiban, Dwarak Parthiban	Reveal
Sciloop	F25	Expert STEM reasoning data for frontier AI labs.	Active	San Francisco, CA, USA	6	Bilal Asmatullah, Osman Siddique	Reveal
SF Tensor	F25	Infrastructure for AI labs to focus on research.	Active	—	6	Ben Koska, Luk Koska, Tom Koska	Reveal

Batch Distribution

XX2614 XX256 WW2628 WW259 WW2414 WW2316

Status Breakdown

Active240 Acquired37 Inactive26

Top Locations

San Francisco176 New York City20 London6 New York5 Seattle4 Paris4

About YC Infrastructure Companies

Y Combinator has funded 303 infrastructure 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 infrastructure innovation globally.

240 of these companies are currently active. 37 have been acquired. VCBacked tracks verified founder contact information, team sizes, and company status for every YC infrastructure startup.

Related Industries

B2B3278 Healthcare805 Fintech709 Consumer654 Engineering, Product and Design610 Industrials489 Productivity208 Real Estate and Construction184

← All YC Companies

Get the full infrastructure dataset

Verified founder emails, CSV export, and advanced filters for all 303 YC infrastructure companies.

No credit card required