Industry

YC B2B Companies

2,174 Y Combinator b2b startups with verified founder contacts, batch info, and company data.

2,174

Companies

838

Active

Acquired

Public

YC Company Directory

50 companies

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Company	Batch	Description	Status	Location	Team	Founders	Reveal
Luel	W26	Turning everyday words and actions into usable training data.	Active	San Francisco, CA, USA	2	Inigo Lenderking, William Namgyal	Reveal
Mantis Biotechnology	W26	The Infrastructure Powering Human-In-Computer Models	Active	New York, NY, USA	3	Georgia Witchel	Reveal
Martini	W26	Collaborative AI-native filmmaking for professionals	Active	San Francisco, CA, USA	2	Long Hoang, Koh Terai	Reveal
Maven	W26	Payments for Voice AI Agents	Active	San Francisco, CA, USA	2	Wasi Ahmed, Brandon Boehme	Reveal
Mendral	W26	AI DevOps Engineer	Active	San Francisco, CA, USA	2	Sam Alba, Andrea Luzzardi	Reveal
Moda	W26	Sentry for AI.	Active	San Francisco, CA, USA	2	Mohammed Al-Rasheed, Pranav Bedi	Reveal
MouseCat	W26	The AI Toolkit for Risk Teams	Active	New York, NY, USA	2	Nicholas Aldridge, Joseph McAllister	Reveal
o11	W26	The Most Integrated M365 AI Suite	Active	San Francisco, CA, USA	4	Aryah Oztanir, Ajay Misra	Reveal
Orthogonal	W26	Agentic Payments for APIs	Active	San Francisco, CA, USA	2	Christian Pickett, Bera Sogut	Reveal
Overshoot	W26	Enable developers to build and run AI vision applications	Active	San Francisco, CA, USA	2	Younes El hjouji, Zakaria El hjouji	Reveal
Oximy	W26	The system of record for enterprise AI usage.	Active	San Francisco, CA, USA	5	Naman Ambavi	Reveal
Oxus	W26	AI-powered automation for internal audit workflows	Active	San Francisco, CA, USA	3	Janet Liu, Melinda Liu, Christine Watts	Reveal
Perfectly	W26	The AI-native Recruiting Operating System	Active	San Francisco, CA, USA	3	Victor Luo, Zhuang (Gary) Luo	Reveal
Piris Labs	W26	Inference at Light Speed	Active	San Francisco, CA, USA	2	Ali Khalatpour, Keyvan Moghadam	Reveal
Pollen	W26	AI Agents for Customer Success	Active	San Francisco, CA, USA	3	Aldrin Ong, Noah Yin, Jeffrey Yum	Reveal
Pollinate	W26	AI Agents for the supply chain.	Active	San Francisco, CA, USA	2	Corey Berther, Adeep Mitra	Reveal
Polymath	W26	Long-horizon RL	Active	San Francisco, CA, USA	2	Dylan Ma, Naren Yenuganti	Reveal
Polymorph	W26	AI that catches intent & churn live, then acts faster than a human can	Active	—	3	David Nie, Manas Purohit, Andrew Sy	Reveal
Protent	W26	Protent turns passive surveillance into proactive intelligence.	Active	San Francisco, CA, USA	2	Srihan Balaji, Abhisheik Sharma	Reveal
Q2Q	W26	We help private equity teams find acquisition targets faster	Active	San Francisco, CA, USA	2	Brianna Lin, Claire Wu	Reveal
RamAIn	W26	Super fast computer-use agents to automate complex workflows.	Active	San Francisco, CA, USA	2	Shourya Vir Jain, Vansh Ramani	Reveal
Reframe	W26	AI agents to automate hardware procurement	Active	San Francisco, CA, USA	2	Eric Wiener, Bryan Zin	Reveal
Ressl AI	W26	AI Transformation for the Trades	Active	San Francisco, CA, USA	4	Abhishek E, Arushi Gandhi	Reveal
Return Signals	W26	AI luxury concierge for E-commerce brands	Active	San Francisco, CA, USA	2	Ilya Valmianski, Alejandro Zaniolo	Reveal
REV1	W26	Shortening hardware design cycles by automating post-CAD work	Active	San Francisco, CA, USA	2	Louis Liu, Alex Rivero	Reveal
Robby	W26	Agentic revenue growth for home service businesses.	Active	San Francisco, CA, USA	3	Feroze Mohideen, Joseph Schwarzmann	Reveal
RunAnywhere	W26	The default way of running On-Device AI at Scale	Active	—	2	Shubham Malhotra, Sanchit Monga	Reveal
Salus	W26	Guardrails to validate your agent's actions before they execute	Active	San Francisco, CA, USA	2	Kevin Pan, Vedant Singh	Reveal
Samora AI	W26	Multilingual voice agents with safe human escalation when needed	Active	San Francisco, CA, USA	8	Vineeth Kumar, Kartik Sawhney, Shakul Raj Sonker	Reveal
Sentrial	W26	Production Monitoring for AI Products	Active	San Francisco, CA, USA	2	Neel Sharma, Anay Shukla	Reveal
Shofo	W26	Common Crawl for Video	Active	San Francisco, CA, USA	4	Bryan Hong, Andre Braga, Braiden Dishman, Alexzendor Misra	Reveal
SideKit	W26	One package to take your mobile app to production.	Active	San Francisco, CA, USA	2	Ethan Pronev, Ashish Selvaraj	Reveal
sitefire	W26	Marketing suite for the agentic web	Active	San Francisco, CA, USA	2	Vincent Jeltsch, Jochen Madler	Reveal
Skillsync	W26	Find anyone in open source	Active	San Francisco, CA, USA	2	Narayana Aaditya Ganeshkumar, Nishant Joshi	Reveal
Sonarly	W26	AI engineer to triage and fix your production alerts	Active	San Francisco, CA, USA	2	Dimittri Choudhury, Alexandre Klobb	Reveal
Stilta	W26	Cursor for patent attorneys	Active	San Francisco, CA, USA	4	Oscar Adamsson, Oskar Block, Tobias Estreen, Petrus Werner	Reveal
Synthetic Sciences	W26	AI co-scientists that run research end-to-end	Active	—	2	Aayam Bansal, Ishaan Gangwani	Reveal
Tensol	W26	AI Employees for your Business, Powered by OpenClaw	Active	San Francisco, CA, USA	2	Oliviero Pinotti, Pratik Satija	Reveal
Terminal Use	W26	Vercel for background agents	Active	San Francisco, CA, USA	4	Filip Balucha, Stavros Filosidis, Vivek Raja	Reveal
Traverse	W26	Data research company building RL envs for non-deterministic work	Active	San Francisco, CA, USA	2	Lance Yan, Zachary Yu	Reveal
Unisson	W26	The AI product specialist for customer-facing teams	Active	San Francisco, CA, USA	2	Varun Mathur, Tom Achache	Reveal
Valgo	W26	Algorithmic safety validation tools for autonomy.	Active	San Mateo, CA, USA	2	Robert Moss, Sydney Katz	Reveal
Vela	W26	The AI Scheduling Assistant that truly knows you.	Active	San Francisco, CA, USA	4	Gobhanu Sasankar Korisepati, Saatvik Suryajit Korisepati	Reveal
Velum Labs	W26	Firewall that controls access to information across AI and humans	Active	San Francisco, CA, USA	2	Benjamin Muñoz-Cerro, Alen Rubilar-Muñoz	Reveal
Veriad	W26	AI compliance officers	Active	San Francisco, CA, USA	2	Rohan Mahendraker, Anton Muratov	Reveal
Visibl Semiconductors	W26	AI agents for chip design.	Active	San Francisco, CA, USA	2	Jordon Kashanchi, Bryce Neil	Reveal
VOYGR	W26	Real-world place intelligence for AI apps and agents	Active	—	—	Vlad Baskakov, Yarik Markov	Reveal
Wayco	W26	AI operator for legal case referrals	Active	—	1	Iqbol Temirkhojaev	Reveal
Wideframe	W26	AI agent for video creative agencies	Active	San Francisco, CA, USA	2	Daniel Pearson, Zachary Kim	Reveal
Zatanna	W26	Adaptive Healthcare Admin Agents	Active	San Francisco, CA, USA	3	Alex Blackwell, Rithvik Vanga, Tarun Vedula	Reveal

Batch Distribution

WW26101 WW2599 WW24149 WW23159 WW22161 WW21134

Status Breakdown

Active838 Inactive83 Acquired79

Top Locations

San Francisco415 New York110 London23 Bengaluru14 Toronto13 Seattle11

About YC B2B Companies

Y Combinator has funded 2,174 b2b 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 b2b innovation globally.

838 of these companies are currently active. 79 have been acquired. VCBacked tracks verified founder contact information, team sizes, and company status for every YC b2b startup.

Related Industries

Engineering, Product and Design139 Industrials89 Consumer80 Healthcare78 Fintech65 Infrastructure64 Productivity38 Manufacturing and Robotics30

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