Industry

YC B2B Companies

3,278 Y Combinator b2b startups with verified founder contacts, batch info, and company data.

3,278

Companies

964

Active

Acquired

Public

YC Company Directory

50 companies

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Company	Batch	Description	Status	Location	Team	Founders	Reveal
Minicor	X26	Scalable windows desktop automations	Active	San Francisco, CA, USA	7	Faizaan Chishtie, Saheed Akinbile	Reveal
Miso Labs	X26	Emotive foundation voice models	Active	San Francisco, CA, USA	2	Aoden Teo, Cassidy Dalva	Reveal
Modern	X26	Modern - the ServiceNow killer	Active	San Francisco, CA, USA	2	Seb Poole, Aleks Tomovski	Reveal
Multiplier	X26	Agent harnesses for asset managers	Active	New York City, NY, USA	3	Benjamin Finch, Ian McInnis	Reveal
Oddpool	X26	Institutional infrastructure for prediction markets	Active	San Francisco, CA, USA	2	Avi Arora, Ritesh Malpani	Reveal
OpenProse	X26	An open-source operating system for reliable long-running agents	Active	San Francisco, CA, USA; Remote	3	Dan Barrett	Reveal
OpenWork	X26	The open source alternative to Claude Cowork	Active	San Francisco, CA, USA	4	Ben Shafii	Reveal
Pairio	X26	AI mobile app that helps factory technicians fix broken machines	Active	BY, Germany	3	Tim Zinkl, Matthias Wolf	Reveal
Pavoot	X26	AI Event Manager for in-person events	Active	San Francisco, CA, USA	—	Gohar Tamrazyan, Ana Yoon Faria de Lima, Ana Yoon Faria de Lima	Reveal
Pentagon	X26	The control plane for agent-native work.	Active	Salt Lake City, UT, USA	1	Edgar Pavlovsky	Reveal
PerfectBit, Inc.	X26	Correct by construction AI training data	Active	San Francisco, CA, USA	2	Seiji Yamamoto, Peter Vajda	Reveal
Ploy	X26	Ploy turns your website into your company's growth engine.	Active	San Francisco, CA, USA	14	Bryant Chou	Reveal
ProjectX	X26	Agent native workspace for heavy parallel workflows on the web	Active	San Francisco, CA, USA	8	Rounak Adhikary, Bishal Karmakar, Sourya Majumder	Reveal
qomplement	X26	The Agentic ERP for supply chain operations	Active	San Francisco, CA, USA	7	Kerim Taray, Andres Garza	Reveal
ReasonBlocks	X26	The runtime layer that makes AI agents cheaper and more reliable	Active	San Francisco, CA, USA	2	Sajeev Magesh, Rohan Vij	Reveal
Regbase	X26	Automating Corporate Compliance, Worldwide	Active	New York City, NY, USA	3	Natalie Aresta-Katz, Ethan Shea	Reveal
Replicas	X26	Run any coding agent harness in the cloud	Active	San Francisco, CA, USA	2	Connor Loi, Saai Arora	Reveal
Revnu	X26	The growth infrastructure for the autonomous business	Active	Manchester, England, United Kingdom	2	George Jefferson, art freebrey, Art Freebrey	Reveal
Runtime	X26	Build and run internal agents, without managing the infrastructure	Active	San Francisco, CA, USA	3	Gus Trigos, Carlos Volante	Reveal
Saffron	X26	Helping your company find 10x engineers.	Active	San Francisco, CA, USA	3	Robert Chondro, Kazuma Choji, Jerry Yao	Reveal
Salesgraph	X26	Proactive revenue agents that move enterprise deals forward	Active	San Francisco, CA, USA	2	Ruhan Ponnada, Ricardo Nunez	Reveal
Saudara AI	X26	AI Native Sourcing Broker For Overseas Manufacturing	Active	San Francisco, CA, USA	2	Edward Haryono, Jennifer Prasetyo	Reveal
Savant	X26	Company brain every AI-native enterprise runs on	Active	San Francisco, CA, USA	2	Anthony Kim, Kevin Yu	Reveal
Sazabi	X26	The AI-native observability platform for fast-moving engineering teams	Active	San Francisco, CA, USA	10	Sherwood Callaway	Reveal
Scope	X26	We help software companies get discovered and used by AI agents	Active	San Francisco, CA, USA	2	Anand-Arnaud Pajaniradjane, Anand Pajaniradjane	Reveal
Sherpa	X26	Make websites improve themselves.	Active	San Francisco, CA, USA	2	Ethan Kinnan, Norbu Sonam	Reveal
Silmaril	X26	Security for agents that self-improves	Active	San Francisco, CA, USA	2	Aum Upadhyay, Eduardo Velasco	Reveal
smol machines	X26	Ship software faster with portable, self contained virtual machines.	Active	San Francisco, CA, USA	1	BinBin He, BinBin H.	Reveal
Stage	X26	Code review platform for humans and agents	Active	San Francisco, CA, USA	2	Dean Stratakos, Charles Pan	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
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
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
Userlens	X26	Let agents talk to your customers	Active	San Francisco, CA, USA	4	Ankur Dahama, Hai Ta	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
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

Batch Distribution

XX2693 XX2574 WW26160 WW25132 WW24220 SS2637

Status Breakdown

Active964 Inactive26 Acquired10

Top Locations

San Francisco661 New York City71 London31 New York17 Paris13 Stockholm12

About YC B2B Companies

Y Combinator has funded 3,278 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.

964 of these companies are currently active. 10 have been acquired. VCBacked tracks verified founder contact information, team sizes, and company status for every YC b2b startup.

Related Industries

Healthcare805 Fintech709 Consumer654 Engineering, Product and Design610 Industrials489 Infrastructure303 Productivity208 Real Estate and Construction184

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