YC Summer 2025The S25 batch: 166 companies, 92% AI
166
companies
92%
AI
18
data
53
developer tools
By category
- AI153 (92%)
- Developer tools3 (2%)
- Other10 (6%)
The S25 companies
166 of 166 companies
AcrelyAIEnterprise Voice Agents
AdaptionalAIAI-powered insurance claims review
AgentMailAIEmail Inboxes for AI Agents
AlaraAIProcurement Platform for Dental Offices
AlterAISecure access control and authorization platform for agent workflows
AlturAIVoice AI Agents for Debt Collection
AmbralAIAI for account management and customer success
argsDeveloper toolsA better GItHub
AstorAIAI advisor for retail investors
AutosanaAIAI agents for E2E testing across mobile & web
AutumnAIBilling infrastructure for AI
Avelis HealthAIWe audit medical claims for self-insured employers and health plans.
AventAIAI agents for industrial commerce
b12 LabsAIMaking hard molecules for Pharma and Biotech
BitrigAIBuild and ship native Swift apps with AI
Bizzy AIAIBizzy works 24/7 so you never miss a lead.
Blank BioAIRNA intelligence for precision medicine
BlueAIYour phone finally has someone to run it. Plug in Blue, just ask.
BootLoopAIFirmware in minutes, not months - rigorously tested on real hardware
burntAIAgentic Operating System for Food Supply Chain
Cactus ComputeAIAutomation Foundation Models For Tiny Devices
CareSwiftAIAI scribe for Ambulance Reports
Certus AIAIReplacing the restaurant phone line with Voice AI
Channel3AIDatabase of every product on the internet
CharAIThe AI notepad that knows and works for you
CLODOAIPlanet-scale people discovery.
CloseraAIAI Shopping Agent for Your Ecommerce Store
ComenaAIAI agents for distributors and manufacturers to automate order entry.
ContextFortAIVisibility and Controls for Browser Agents
ConvexiaAIThe world's first AI-maximalist pharma company
ConvictionAIAnyone Can Trade
CyberdeskAISelf learning computer use agent for developers
DatafruitAIThe AI workspace for software implementations
Dedalus LabsAICompute substrate for AI agents
DeepAware AI (Robotics Center of Silicon Valley)AIRobots, parts & RL envs & evals - delivered in 48 hrs / pickup in SF.
Design ArenaAIWorld's largest crowdsourced benchmark for AI-generated design
DoeAIThe boring stuff, handled. Everything else, supercharged.
DuraniumAIReshoring critical metal production
EffiGovAIThe AI OS for Cities
EmbedderAIThe Enterprise AI Platform for Embedded Software
EpicenterAIChatGPT's memory feature in an open, portable format
F2AIThe AI platform for private markets investors
F4 IndustriesAIThe GD&T Analysis Platform for Engineering Drawings
FintoAIAI accounting for enterprise finance teams
FlaiAIWe Bring Customers to Your Dealership
FleetlineAIOptimizing fleet planning with data driven algorithms
FlootAIThe app platform inside Claude and ChatGPT.
Flywheel AIAIWaymo for excavators
FreyaAIVoice AI for Enterprises
FrizzleAIAI Grading for Teachers
FulcrumAIThe agentic debugger for AI systems
GETASAPAIAI-Native Fresh Produce Logistics
GhostEyeAIYour always-on red team.
GolpoAICreate Whiteboard Explainer Videos with AI from a Prompt or Document
HalluminateAIData and RL environments to automate knowledge work
HeraAIAI Motion Designer
HumoniqAIAI-Native BPO for travel & transport
idlerAIHill-climb any benchmark, for any model, in any domain.
ImpreziaAIThe World's First AI Ad Network.
InterfereAIGive engineering, product, and design teams insight into unseen issues
Iron GridAIFoundation models for physical systems
IronLedger.aiAIAI-enabled Corporate Cards and Invoice Processing for Real Estate
Janet AIAIAgents that learn your company and work 24/7
JuxtaAIBuilding a GPS alternative 100x more powerful with no hardware needed.
KalindaAIDeep research for class action law firms
KERNELAICrazy fast, open source infra for AI agents to use the Internet
KestrollAIAI video editor
KnowlifyAIThe AI Explainer Video Maker
LanesurfAIBook any load in 10 minutes
LarkAIThe E2E testing layer for AI-driven development
LilacAIWe sell GPUs.
Liva AIAIBuilding socially intelligent AI
LLM StatsAIIndependent AI evaluations lab
LocataAIAI Referral Automation for Primary Care Clinics
LotasAIAI for quantitative trading
LuminalAIMaking AI run fast on any hardware.
MagneticAIAI Tax Preparer for CPA firms
MagnitudeAIOpen source inference server for local models
MangoDeskAILong-horizon RL environments
ManufactAICloud infrastructure for MCP servers and Claude / ChatGPT plugins.
MaximalAITruckload Planning at Machine Precision
MeteorAIAn AI-Native Browser
MetisAcquiredInfrastructure to build reliable agents
MimosAIThe growth OS for plaintiff-side law firms
Minimal AIAIAI Agents for E-commerce Customer Support
ModelenceDeveloper toolsProduction infrastructure on autopilot
MonarchaAITurn maps into data
MonteAIContinual Learning for Agents
MotivesAIConsumer focus groups run by AI
NautilusAIAI platform to grow and to optimize car washes
Nexa LabsAcquiredImplantable microchips and AI for cattle monitoring
NixoAIMake every FDE on your team capable of moving any account forward.
NormalAITesting and certifying the hardware of the future
NOSO LABSAIBuild AI agents for field technicians to diagnose and sell 10x better
NotteAIReliable Web Agents for Enterprise
NovaflowAIThe AI data analyst for biology labs
Nox MetalsAISupplying America's Industrial Base
NozomioAIproduct lab. focused on personal ai and context.
NuntiusInactiveMaking Models Follow Rules.
OkibiAITurns products into CLIs and agents into customers
OmnaraAIThe Open-Source Alternative to Claude Managed Agents
OnDeck AIAIAnalyze any footage, without training a model
OneStopAIThe local internet for NYC.
OpennoteAcquiredThe notebook that thinks with you.
Orange SliceAIAgentic sales enrichment spreadsheet
PallyAIYour personal AI Assistant
PalomaAIDigital transformation for real economy businesses
PanelsAIAudio Data for AI Labs
PangolinAIOpen networking and security for your workforce, AI agents, and infra
PanoptiveAIThe continuous oversight engine for clinical trials
PARES AIAIAI-native real estate services firm
Perspectives HealthAIAI to run behavioral health programs better
PhasesAIAI for the physical world
Physical TuringAIEvaluating humanoids in the real world
PingoAIAI companion that helps you learn languages
PlaygentAISandboxes for AI agents
PleomAIAgentic Business Intelligence
PreseenAIThe AI forecasting company for global macro events.
ProcIndexAIAI-powered accounting automation for construction and manufacturing
ProliferateAIDo your life's work with agents
QuotainAIAI sales simulations using your real deals
ReacherAIWe automate creator marketing for the world's largest brands
RebulkAIAI-native software for managing rail and bulk operations.
RellingAIdeploying the first billion robots for manufacturing
Risely AIAIAI agents that automate administrative work across college campuses.
RiverbankAIInfrastructure Cartography
RowFlowAIReplacing forms with AI conversations
SapienAISynthetic populations for decisions
SerafisAINarrative intelligence for investors
SigmanticAIAIThe Cursor for Chip Design - Delivering Silicon-Ready Chip Designs…
SiraAIAI Native Rippling for Deskless Workers
SlashyAICursor for Email
Socratix AIAIAI coworkers for fraud and compliance teams.
Spotlight RealtyAIAI powered brokerage reducing residential rental commissions in NYC…
stagewiseAIThe Open Source Agentic IDE
Stellon LabsAIBuilding tiny frontier AI models that run on edge devices
StocklineAIAI-native ERP for food wholesalers
StormyAIStormy runs the office so your crew can run the work.
Synthetic SocietyDeveloper toolsSynthetic Videos to Simulate Real Users
TectoAIInactiveA Platform for AI Governance
TesoraAIFrontier AI for Actuaries
The Prompting CompanyAIWe help products get discovered & used by AI agents.
TheoraAIBuilding medical school for AI Agents
TopologicalAIPhysics-based foundation models for CAD optimization.
TraceAIContext-aware orchestration between humans and AI.
TraceRoot.AIAIOpen source self-improving layer for AI agents
truthsystemsAIAutomatically blocking risky behavior with real-time governance agents
TwentyTwoAIAI infrastructure for biosecurity
Uplift AIAIFoundational Voice Models for regional languages
VeritusAIAI agents for the consumer lending industry
Verne RoboticsAIAI models that teach robots new skills in hours
VibeFlowAIAI content manager that grows your company's online presence
Vulcan TechnologiesAISecure frontier AI for government & adjacent knowledge work
WaferAIAI that makes AI fast
WaylineAIAI voice for property managers
WedgeAIAI Employees for Healthcare
Albacore Inc.OtherDrone submarines
cocreateOthervideo production software
CostreamOtherIndexing human dialogue through digital products
DeepGroveOtherFrontier Intelligence. On Any Device.
MunifyOtherThe Cross-Border Neobank for the Middle East
Perseus DefenseOtherAmerica's Golden Dome for Drones
RealRootsOtherIRL friendship app for women
RuvoOtherThe Global Dollar App for Brazil
ShorOtherInternational payroll, built for founders
SolvaOtherBuilding the new superintelligence for insuranceS25 among all batches
Top tags in S25
- Developer Tools24
- Infrastructure10
- Enterprise Software9
- Productivity9
- Open Source8
- Fintech7
- Supply Chain7
- AI Assistant7
- Consumer7
- Hardware6
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.