YC Infrastructure
139 Y Combinator companies tagged Infrastructure, most in S26 (17).
Companies per batch
Companies
139 of 139 companies
MemorableS27 · AIreducing agent reasoning into a graph search problem
AviernF26 · Developer toolsUnmanned airplanes for geospatial intelligence
Dreamscale LabsF26 · AIRunning robot brains in the cloud
GrayPassF26 · AIVerify that the expected person is in control before key actions.
HopperF26 · AIFast inference for voice
InvertixF26 · AIEnergy Superintelligence, AI that operates critical infrastructure
Lambda RoboticsF26 · AIRobotics for AI Infrastructure
MaritimeF26 · AIThe managed cloud for AI agents.
Nodus ComputeF26 · AIIntelligent Cloud for AI workloads
PapayaF26 · AIContinuous optimization for AI agents
TilionF26 · AISuper fast, unblockable browser infra for agents
Workers IOF26 · AISimulation Environments for Verifying Mission Critical Software
Agency Tool CompanyS26 · Developer toolsReliable infrastructure to build, deploy and manage real-world robots.
ArchalS26 · AIAPI sandboxes, built for AI agents
CautionS26 · AIHosting platform for software you can't afford to have hacked
ClickS26 · AIResearch services for ChatGPT and Claude
DecaworkS26 · AITraining company-specific models that approve AI actions.
Experiential LabsS26 · AIOpen source AI gateway that turns your traffic into better models
hiloopS26 · AIAutoresearch as a service: we solve your hardest measurable problems
InkboxS26 · AIThe identity and communication layer for AI agents
Luca IQS26 · AIAPI-first tax engine for CPA firms and developers
OneTriangleS26 · AIThe cheapest, fastest inference cloud
OpenVectorS26 · AIAI that turns any camera to an autonomous worker with real-time vision
RiftenS26 · AIEarned intelligence for every company
RindlerS26 · AIThe IDE for Tokenmaxxers
ShieldedS26 · Developer toolsWe help Fortune 500 companies hedge their supply chain risk
StoaS26 · AIThe market behind AI hardware.
SubVysionS26 · AIAutonomous rovers to make the ‘Google Maps’ of underground utilities
TouchmarkS26 · AIMarket for future inference capacity
ExpanseX26 · AIUnlock wasted GPU capacity.
HubX26 · AIReal-world training data for frontier AI labs and robotics.
Uno WalletX26 · AIThe AI mobile wallet that replaces Apple Pay
ApproximaW26 · AIYour software should build itself.
BidflowW26 · AIAI Takeoffs for Electrical
CaptainW26 · AISelf-tuning file search for AI agents
FernW26 · Developer toolsRL environments for robotics companies
Piris LabsW26 · AIThe Networking Layer of AI
RunAnywhereW26 · AIFastest inference anywhere: open models on-prem, hosted or on-device
SalusW26 · AIGuardrails to validate your agent's actions before they execute
ShofoW26 · AIThe World's Largest Video Library
AmikaF25 · AIInfra to build your own software factory
Bolna AIF25 · AIVoice AI to enable India's next billion
Kestrel AIF25 · AIAI Agents for Platform Engineering
LemmaF25 · AIProduction Monitoring for AI agents
MSPilotF25 · AITurn AI adoption into a recurring revenue line.
s2.devF25 · AIAPI for unlimited, durable, real-time streams
Unsiloed AIF25 · AIAPI for parsing multimodal unstructured data
KERNELS25 · AICrazy fast, open source infra for AI agents to use the Internet
LilacS25 · AIWe sell GPUs.
LLM StatsS25 · AIIndependent AI evaluations lab
MagnitudeS25 · AIOpen source inference server for local models
ManufactS25 · AICloud infrastructure for MCP servers and Claude / ChatGPT plugins.
ModelenceS25 · Developer toolsProduction infrastructure on autopilot
MonteS25 · AIContinual Learning for Agents
PanoptiveS25 · AIThe continuous oversight engine for clinical trials
PlaygentS25 · AISandboxes for AI agents
TraceRoot.AIS25 · AIOpen source self-improving layer for AI agents
AttuneX25 · AIFaster builds, zero effort.
BlaxelX25 · AIThe infrastructure for autonomous agents
Boost RoboticsX25 · AIRobots for the inspection and maintenance of data centers
GolfX25 · AIAgentic AI Security and Governance
HelixDBX25 · AIThe fastest & most scalable graph-vector database on the market
NaïveX25 · AIAutonomous Company Infrastructure
ParaQueryX25 · DataManaged GPU-accelerated Spark + SQL at 2x speed and half the cost
PrismX25 · Developer toolsAbundant Intelligence for Everyone
SixtyfourX25 · AIIntelligence Infrastructure on People and Entities
.WaveW25 · AIContinuous inference for streaming AI models
DextoW25 · AIAWS for AI Agents
ExlaW25 · AIBuilding agents that reads logs and fixes issues on your behalf.
Liquid ComputeW25 · AIPending CFTC regulation to be the first cash and physically settled…
OsmosisW25 · AIReinforcement Learning (RL) for AI Agents
ReJotW25 · DataWe turn complex API integrations into drop‑in full‑stack libraries
SublingualW25 · InactiveDaily productivity tracker
ArchilF24 · AIThe high-performance file system that connects AI to data
Lingo.devF24 · AIThe Localization Engineering Platform
RevylF24 · AIThe Mobile Development Platform
RyvnF24 · Developer toolsEasy and secure customer cloud deployments
SurgeF24 · Developer toolsStripe for telephony
DoublezeroS24 · AIPlatform to build, use, and monetize fully autonomous agents
expand.aiS24 · AITurn any website into an API.
HyrexS24 · AIThe COLD Task Framework
Mem0S24 · AIThe Memory layer for AI Agents
OwayS24 · AIThe coordination OS for the physical economy.
PanoraS24 · AITurning messy inboxes into ERP-Ready Data
PipeshiftS24 · AIUltra-low latency inference cloud for real-time workloads
Thunder ComputeS24 · AIGPUs for Agents
Unsloth AIS24 · AIOpen-Source Reinforcement Learning (RL) & Fine-tuning for LLMs.
WordwareS24 · AIAI agents you can rely on
Zettascale ComputingS24 · AIChips for frontier AI
CelestW24 · InactiveThe Vercel of Flutter
CrowdVoltW24 · Developer toolsThe integration layer for live events infrastructure
HatchetW24 · AIThe orchestration platform for teams who ship.
OpenFoundryW24 · AIThe fastest developer experience for building on open source AI.
Trellis AIW24 · AIAccelerate Medication Access with AI
UbicloudW24 · AIOpen source alternative to AWS
Zep AIW24 · AIAgent Context Is Hard. We Fixed It.
AutomorphicS23 · AIInfuse knowledge into language models with just 10 samples
CedanaS23 · AIFast, reliable, reproducible AI with GPU live migration
ConvergeS23 · DataAll-in-one marketing measurement for B2C
Eden CareS23 · Developer toolsClaims infrastructure for African health insurance
EpsillaS23 · AIAll-in-one platform to create AI agents with your private knowledge
GlideS23 · AcquiredCrypto Deposits, Wallet Funding, and Pay-with-crypto Infra
HiroS23 · AIAgents that handle security work
LeafpressS23 · InactiveAI Energy Management
ParadeDBS23 · DataUnify application data, vectors, and full-text search in one Postgres
SIDS23 · AIAI research lab for retrieval
Terracotta AIS23 · AIAI-powered Infrastructure as Code PR reviews
TrainyS23 · AIInfrastructure for managing GPU clusters for training/serving.
BuildJetW23 · Developer toolsHigh-performance computing cloud
CakeworkW23 · InactiveAPI that adds cloud hosting to any developer platform
LumeW23 · AcquiredSpeed up customer implementation with AI
OmnistrateW23 · Developer toolsTransform any software to multi-cloud SaaS in minutes not years
ReflexW23 · AIThe operating system for building mission-critical enterprise apps.
RivetW23 · AIRivet Actors are the primitive for stateful workloads
UnifyW23 · AIModels that keep learning
DenormalizedS22 · Inactiveserverless platform for real-time data
HyperDXS22 · AcquiredOpen-source, dev-friendly observability.
PrimeVaultS22 · Developer toolsInfrastructure powering stablecoin and digital finance
ArgoW22 · Developer toolsA social streaming platform powered by creators and fans
BotCityW22 · AIObservability and Governance for AI-Generated Python scripts.
BrainboardW22 · Developer toolsVisually design and manage cloud infrastructures.
CerebriumW22 · AIServerless Infrastructure Platform for AI
RDashW22 · AIAI Powered Construction Management Software
WingbackW22 · InactiveWingback provides tools and APIs for SaaS pricing and packaging.
CumbucaS21 · Developer toolsBare-metal access to Brazil's Open Finance and Pix systems
Mach9S21 · AIAI CAD Software for Civil Engineering
TavusS21 · AIBuilding the human layer of AI
CampW21 · Developer toolsA Nouns DAO governance client
EncordW21 · AIThe data layer for physical AI
EnodeW21 · Developer toolsEnergy Orchestration Platform
HUBUCW21 · Developer toolsGlobal Card Issuing and Payment Processing Engine
NimbusW21 · InactiveNimbus reduces Datadog costs by more than 60% without Manual Effort
SpruceIDW21 · Developer toolsSpruceID lets users control their data across the web.
True3DW21 · AIBuilding the next generation of visual media
AdenW20 · AIOpen source agent generation framework
Fly.ioW20 · Developer toolsRun full stack apps close to your users.
AlpacaW19 · Developer toolsAPI-first stock and crypto brokerage platform
ElphW19 · AcquiredAcquired by Brex. Building digital payments infrastructure.
Zinc PlatformW17 · InactiveInsurance Distribution InfrastructureNot affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.