YC Hard Tech

148 companies · 134 active · 47% AI · most in S26 (27)

antimattrvoice-first hardware interface for human-agent interactionYC F26San FranciscoStartup →Other

CaladhAnti-drone defense for the maritime domainYC F26BostonStartup →AI

Degla IncThe fully autonomous intelligence layer in the sky.YC F26San FranciscoStartup →AI

HABULike Crosby, but for real estate developmentYC F26PhoenixStartup →AI

HemlockForce + contact dynamics collected at scale for training physical AI.YC F26San FranciscoStartup →AI

Hundred100% automated inspection for precision hardware partsYC F26San FranciscoStartup →AI

Liquid EnergySelf contained solar-powered AI inference modules: the NanoDCYC F26WaterlooStartup →Other

Open ActuationQuick-turn, purpose-built motors & actuators for allYC F26Los AngelesStartup →AI

Rodeo RoboticsRobots for vehicle maintenance.YC F26San FranciscoStartup →AI

SaccadeWorld's Earliest Test for Alzheimer's BiomarkersYC F26San FranciscoStartup →AI

The Subvocal CompanyGlasses that turn silent speech into textYC F26San FranciscoStartup →AI

Theseus RoboticsHumanoids to restock retail shelves & pick ordersYC F26ZHStartup →AI

twentyfour26Building Autonomous Factories in America, Starting with On-Demand CNC…YC F26San FranciscoStartup →AI

Viraj AeroNext generation gas turbines for data centers & aviationYC F26Startup →AI

VoreliosAI that can engineer anythingYC F26San FranciscoStartup →AI

83 SciencesAI-native materials discovery powered by unpublished experimental dataYC S26San FranciscoStartup →Other

Aerogen SystemsModernizing Chip Manufacturing InfrastructureYC S26Ann ArborStartup →Other

Applied Electrodynamics, Inc.A new kind of camera that can see through walls.YC S26San FranciscoStartup →Other

AtomarineFloating nuclear powered data centers at sea.YC S26San FranciscoStartup →AI

BaudAI chips for ultra-fast training and inferenceYC S26San FranciscoStartup →Other

Cosmic RoboticsAutonomous construction on Earth and beyondYC S26San FranciscoStartup →AI

DaqstraAI-native test infrastructure layer for hardware companiesYC S26San FranciscoStartup →AI

Dipole LabsAI-controlled optical switching for AI clustersYC S26BostonStartup →Other

EdgerunMilitary exoskeletonsYC S26San FranciscoStartup →AI

Ekho LabsWorld Model for FreightYC S26New York CityStartup →Other

Ethos Space ResourcesWe make silicon on the Moon, to power everything in space.YC S26Los AngelesStartup →AI

Frontier ComputingFrontier grows scalable biological brains as an ML training substrateYC S26LondonStartup →AI

Induction LabsBuilding intellectually curious AIYC S26San FranciscoStartup →AI

Libra RoboticsThe robot workforce for infrastructure of the AI eraYC S26San FranciscoStartup →Other

Mass MagneticsUSA-made magnetics for robotics and defense.YC S26BostonStartup →Other

MeteoricDrones that clear clouds over solar farms and weaken hurricanesYC S26San FranciscoStartup →AI

Moving AtomsScan to 3D ModelYC S26San FranciscoStartup →AI

NeuromorphicBuilding robots to automate wetlabsYC S26San FranciscoStartup →Other

NoriThe most capable American-made humanoid robot for $1,688YC S26San FranciscoStartup →AI

Praxis RoboticsTurns real businesses into robotics data vendorsYC S26San FranciscoStartup →Other

Rise ReformingWe turn waste gases into supply-secure chemicalsYC S26ChicagoStartup →AI

RobocurveEvals for robotsYC S26San FranciscoStartup →Other

Salem Robotics IncDeploying robots to replace workers in hazardous spacesYC S26San FranciscoStartup →AI

SubVysionAutonomous rovers to make the ‘Google Maps’ of underground utilitiesYC S26San FranciscoStartup →AI

Synapse SemiconductorNew semiconductors that merge compute and visionYC S26DurhamStartup →AI

UltrasoniumMetal manufacturing, faster, cheaper, and more versatile.YC S26BostonStartup →Other

Vernius Systems, Inc.Mass-deployable radars for air defenseYC S26San FranciscoStartup →Other

Arlo IndustriesTrack drones and missiles without radars - Accurate, Passive, ScalableYC X26New York CityStartup →Other

DispatchSatellites for Manufacturing in SpaceYC X26San FranciscoStartup →Other

General Aviation CompanyFixing air traffic control with remote towersYC X26New York CityStartup →AI

Nine FivesRF test equipment for next-gen spacecraft, drones, and cellphonesYC X26San FranciscoStartup →Other

OrnadyneWe're building robot birds for surveillance.YC X26Los AngelesStartup →AI

NdeaBuilding AGI that can innovate.YC W26RemoteStartup →AI

Piris LabsThe Networking Layer of AIYC W26San FranciscoStartup →AI

Visibl SemiconductorsCustom silicon for power electronicsYC W26San FranciscoStartup →AI

DarwinRobot technicians for AI infrastructureYC F25San FranciscoStartup →AI

LightberryRobots with soulYC F25San FranciscoStartup →Other

WardstoneThe Modular Interceptor PlatformYC F25Los AngelesStartup →Other

Zephyr FusionPowering tomorrow's industrial revolution in spaceYC F25San DiegoStartup →AI

Cactus ComputeAutomation Foundation Models For Tiny DevicesYC S25San FranciscoStartup →AI

SigmanticAIThe Cursor for Chip Design - Delivering Silicon-Ready Chip Designs…YC S25San FranciscoStartup →Other

Atum WorksGigascale NanomanufacturingYC X25San FranciscoStartup →AI

Boost RoboticsRobots for the inspection and maintenance of data centersYC X25BostonStartup →Other

Cascade SpaceCommercial alternative to the Deep Space NetworkYC X25San FranciscoStartup →AI

GodelaAI Physics Engine to replace simulations and prototypesYC X25San FranciscoStartup →Other

NODI EnergyDistributed energy infrastructure unlocking grid power to data centersYC X25LondonStartup →AI

PhotoniumAI-Powered Optical Consulting & SoftwareYC X25New York CityStartup →Other

Forge AutomationSoftware Enabled CNC Parts SupplierYC W25TorontoStartup →Other

Instinct SpaceBuilding lunar landersYC W25LondonStartup →Other

Maritime FusionFusion reactors for shipsYC W25San FranciscoStartup →AI

Optifye.aiAI performance monitoring for factory workersYC W25New DelhiStartup →Other

Reditus SpaceReusable SatellitesYC W25AtlantaStartup →AI

InnatePersonal AI RobotsYC F24San FranciscoStartup →Other

1849 bioEngineering microbes for miners to unlock billions in trapped metalYC S24San FranciscoStartup →AI

AutoPallet RoboticsWe make robots that move boxes in warehousesYC S24San FranciscoStartup →Other

BiocartesianConverting biology into digital molecular mapsYC S24PhiladelphiaStartup →AI

Conductor QuantumAI that operates quantum computers for scientific discoveryYC S24San FranciscoStartup →AIInactive

deepsiliconSoftware and hardware to run neural networks faster and cheaperYC S24San FranciscoStartup →AI

NetworkOceanWe build floating solar data centersYC S24San FranciscoStartup →AI

SenseiRobotic Training Data at ScaleYC S24BostonStartup →AI

SorcererBuilding a nervous system for the atmosphereYC S24San FranciscoStartup →Other

Spaceium IncIn-Space RefuelingYC S24OttawaStartup →AI

StarcloudData centers in spaceYC S24SeattleStartup →AI

Zettascale ComputingChips for frontier AIYC S24San FranciscoStartup →Other

ElodinUnified flight software and hardware for the mission of tomorrowYC W24San FranciscoStartup →AI

YonduRobots to Automate FulfillmentYC W24Los AngelesStartup →AI

Andromeda SurgicalAutonomous surgical robotsYC S23San FranciscoStartup →Data

Zelos CloudThe Data Platform for Mission‑Critical SystemsYC S23San FranciscoStartup →AI

rex.fitAutomating nutrition tracking.YC W23San FranciscoStartup →Other

Stralis AircraftEmission free hydrogen electric aircraftYC W23BrisbaneStartup →AI

Integrated ReasoningFaster processors for solving NP-complete problemsYC S22San DiegoStartup →AI

Polymath RoboticsGeneral Autonomy for Industrial VehiclesYC S22San FranciscoStartup →Other

AirMyneBuilding systems to remove carbon dioxide from air at industrial scaleYC W22San FranciscoStartup →Other

Andson BiotechEmpowering Mass Spec for Biotech and BeyondYC W22AtlantaStartup →Other

AstroForgeWe Mine AsteroidsYC W22Los AngelesStartup →Other

EnlightraMulticolor lasers for ultrafast data transmissionYC W22LausanneStartup →Other

FleetzeroMaking all ships robots.YC W22HoustonStartup →Developer tools

Hubble NetworkBluetooth to SpaceYC W22Las VegasStartup →AI

Impossible MetalsUnderwater robotic vehicles that collect battery metals responsiblyYC W22Los AngelesStartup →AI

Industrial NextIndustrialNext builds the AI brain for manufacturing –…YC W22San FranciscoStartup →AI

NearWaveHelping physicians select the right therapy for breast cancer patientsYC W22AustinStartup →Other

Palitronica IncDetect cyber attacks on critical physical infrastructureYC W22KitchenerStartup →Other

SeaboundCarbon capture equipment for shipsYC W22LondonStartup →Other

WyvernHigh-res hyperspectral pictures of Earth from spaceYC W22EdmontonStartup →Other

Humane GenomicsA platform to make artificial viruses as cancer therapeutics.YC S21New York CityStartup →

Company	Category	Status	Program
antimattrvoice-first hardware interface for human-agent interactionteam of 2YC F26ActiveAI	AI	Active	YCF26
CaladhAnti-drone defense for the maritime domainYC F26ActiveOther	Other	Active	YCF26
Degla IncThe fully autonomous intelligence layer in the sky.team of 2YC F26ActiveAI	AI	Active	YCF26
HABULike Crosby, but for real estate developmentteam of 2YC F26ActiveAI	AI	Active	YCF26
HemlockForce + contact dynamics collected at scale for training physical AI.YC F26ActiveAI	AI	Active	YCF26
Hundred100% automated inspection for precision hardware partsteam of 3YC F26ActiveAI	AI	Active	YCF26
Liquid EnergySelf contained solar-powered AI inference modules: the NanoDCteam of 5YC F26ActiveAI	AI	Active	YCF26
Open ActuationQuick-turn, purpose-built motors & actuators for allteam of 2YC F26ActiveOther	Other	Active	YCF26
Rodeo RoboticsRobots for vehicle maintenance.team of 2YC F26ActiveAI	AI	Active	YCF26
SaccadeWorld's Earliest Test for Alzheimer's Biomarkersteam of 2YC F26ActiveAI	AI	Active	YCF26
The Subvocal CompanyGlasses that turn silent speech into textteam of 3hiringYC F26ActiveAI	AI	Active	YCF26
Theseus RoboticsHumanoids to restock retail shelves & pick ordersteam of 7YC F26ActiveAI	AI	Active	YCF26
twentyfour26Building Autonomous Factories in America, Starting with On-Demand CNC…team of 2YC F26ActiveAI	AI	Active	YCF26
Viraj AeroNext generation gas turbines for data centers & aviationYC F26ActiveAI	AI	Active	YCF26
VoreliosAI that can engineer anythingteam of 2YC F26ActiveAI	AI	Active	YCF26
83 SciencesAI-native materials discovery powered by unpublished experimental datateam of 3hiringYC S26ActiveAI	AI	Active	YCS26
Aerogen SystemsModernizing Chip Manufacturing Infrastructureteam of 4YC S26ActiveOther	Other	Active	YCS26
Applied Electrodynamics, Inc.A new kind of camera that can see through walls.team of 5YC S26ActiveOther	Other	Active	YCS26
AtomarineFloating nuclear powered data centers at sea.team of 2YC S26ActiveOther	Other	Active	YCS26
BaudAI chips for ultra-fast training and inferenceteam of 4YC S26ActiveAI	AI	Active	YCS26
Cosmic RoboticsAutonomous construction on Earth and beyondteam of 82 programsYC S26 +1ActiveOther	Other	Active	YC +1S26
DaqstraAI-native test infrastructure layer for hardware companiesteam of 3YC S26ActiveAI	AI	Active	YCS26
Dipole LabsAI-controlled optical switching for AI clustersYC S26ActiveAI	AI	Active	YCS26
EdgerunMilitary exoskeletonsteam of 12hiringYC S26ActiveOther	Other	Active	YCS26
Ekho LabsWorld Model for FreightYC S26ActiveAI	AI	Active	YCS26
Ethos Space ResourcesWe make silicon on the Moon, to power everything in space.team of 2YC S26ActiveOther	Other	Active	YCS26
Frontier ComputingFrontier grows scalable biological brains as an ML training substrateteam of 3YC S26ActiveAI	AI	Active	YCS26
Induction LabsBuilding intellectually curious AIYC S26ActiveAI, Devtools	AI, Devtools	Active	YCS26
Libra RoboticsThe robot workforce for infrastructure of the AI erateam of 2YC S26ActiveAI	AI	Active	YCS26
Mass MagneticsUSA-made magnetics for robotics and defense.team of 3YC S26ActiveOther	Other	Active	YCS26
MeteoricDrones that clear clouds over solar farms and weaken hurricanesteam of 2YC S26ActiveOther	Other	Active	YCS26
Moving AtomsScan to 3D Modelteam of 2YC S26ActiveAI, Data	AI, Data	Active	YCS26
NeuromorphicBuilding robots to automate wetlabsteam of 3YC S26ActiveAI	AI	Active	YCS26
NoriThe most capable American-made humanoid robot for $1,688team of 5hiringYC S26ActiveOther	Other	Active	YCS26
Praxis RoboticsTurns real businesses into robotics data vendorsteam of 3YC S26ActiveAI	AI	Active	YCS26
Rise ReformingWe turn waste gases into supply-secure chemicalsteam of 52 programsYC S26 +1ActiveOther	Other	Active	YC +1S26
RobocurveEvals for robotsteam of 3YC S26ActiveAI, Devtools	AI, Devtools	Active	YCS26
Salem Robotics IncDeploying robots to replace workers in hazardous spacesteam of 2YC S26ActiveOther	Other	Active	YCS26
SubVysionAutonomous rovers to make the ‘Google Maps’ of underground utilitiesteam of 2YC S26ActiveAI, Devtools	AI, Devtools	Active	YCS26
Synapse SemiconductorNew semiconductors that merge compute and visionteam of 2hiringYC S26ActiveAI	AI	Active	YCS26
UltrasoniumMetal manufacturing, faster, cheaper, and more versatile.team of 5YC S26ActiveAI	AI	Active	YCS26
Vernius Systems, Inc.Mass-deployable radars for air defenseteam of 3hiringYC S26ActiveOther	Other	Active	YCS26
Arlo IndustriesTrack drones and missiles without radars - Accurate, Passive, Scalableteam of 3hiringYC X26ActiveOther	Other	Active	YCX26
DispatchSatellites for Manufacturing in Spaceteam of 4hiringYC X26ActiveOther	Other	Active	YCX26
General Aviation CompanyFixing air traffic control with remote towersteam of 5YC X26ActiveOther	Other	Active	YCX26
Nine FivesRF test equipment for next-gen spacecraft, drones, and cellphonesteam of 3hiringYC X26ActiveAI	AI	Active	YCX26
OrnadyneWe're building robot birds for surveillance.team of 4YC X26ActiveOther	Other	Active	YCX26
NdeaBuilding AGI that can innovate.team of 15YC W26ActiveAI	AI	Active	YCW26
Piris LabsThe Networking Layer of AIteam of 8hiringYC W26ActiveAI, Devtools	AI, Devtools	Active	YCW26
Visibl SemiconductorsCustom silicon for power electronicsteam of 3hiringYC W26ActiveAI, Devtools	AI, Devtools	Active	YCW26
DarwinRobot technicians for AI infrastructureteam of 4hiringYC F25ActiveAI	AI	Active	YCF25
LightberryRobots with soulteam of 3hiringYC F25ActiveAI	AI	Active	YCF25
WardstoneThe Modular Interceptor Platformteam of 8hiringYC F25ActiveOther	Other	Active	YCF25
Zephyr FusionPowering tomorrow's industrial revolution in spaceteam of 2YC F25ActiveOther	Other	Active	YCF25
Cactus ComputeAutomation Foundation Models For Tiny Devicesteam of 8YC S25ActiveAI, Devtools	AI, Devtools	Active	YCS25
SigmanticAIThe Cursor for Chip Design - Delivering Silicon-Ready Chip Designs…team of 2YC S25ActiveAI, Devtools	AI, Devtools	Active	YCS25
Atum WorksGigascale Nanomanufacturingteam of 3YC X25ActiveOther	Other	Active	YCX25
Boost RoboticsRobots for the inspection and maintenance of data centersteam of 2YC X25ActiveAI, Devtools	AI, Devtools	Active	YCX25
Cascade SpaceCommercial alternative to the Deep Space Networkteam of 7hiringYC X25ActiveOther	Other	Active	YCX25
GodelaAI Physics Engine to replace simulations and prototypesteam of 10hiringYC X25ActiveAI, Devtools	AI, Devtools	Active	YCX25
NODI EnergyDistributed energy infrastructure unlocking grid power to data centersteam of 2YC X25ActiveOther	Other	Active	YCX25
PhotoniumAI-Powered Optical Consulting & Softwareteam of 5hiringYC X25ActiveAI, Devtools	AI, Devtools	Active	YCX25
Forge AutomationSoftware Enabled CNC Parts Supplierteam of 21hiringYC W25ActiveOther	Other	Active	YCW25
Instinct SpaceBuilding lunar landersteam of 5YC W25ActiveOther	Other	Active	YCW25
Maritime FusionFusion reactors for shipsteam of 6hiringYC W25ActiveOther	Other	Active	YCW25
Optifye.aiAI performance monitoring for factory workersteam of 8hiringYC W25ActiveAI	AI	Active	YCW25
Reditus SpaceReusable Satellitesteam of 122 programsYC W25 +1ActiveOther	Other	Active	YC +1W25
InnatePersonal AI Robotsteam of 7hiringYC F24ActiveAI, Devtools	AI, Devtools	Active	YCF24
1849 bioEngineering microbes for miners to unlock billions in trapped metalteam of 3YC S24ActiveOther	Other	Active	YCS24
AutoPallet RoboticsWe make robots that move boxes in warehousesteam of 6YC S24ActiveAI	AI	Active	YCS24
BiocartesianConverting biology into digital molecular mapsteam of 2YC S24ActiveOther	Other	Active	YCS24
Conductor QuantumAI that operates quantum computers for scientific discoveryteam of 4hiringYC S24ActiveAI	AI	Active	YCS24
deepsiliconSoftware and hardware to run neural networks faster and cheaperteam of 2YC S24InactiveAI	AI	Inactive	YCS24
NetworkOceanWe build floating solar data centersteam of 4YC S24ActiveAI, Devtools	AI, Devtools	Active	YCS24
SenseiRobotic Training Data at Scaleteam of 2YC S24ActiveAI, Data	AI, Data	Active	YCS24
SorcererBuilding a nervous system for the atmosphereteam of 4YC S24ActiveAI	AI	Active	YCS24
Spaceium IncIn-Space RefuelinghiringYC S24ActiveOther	Other	Active	YCS24
StarcloudData centers in spaceteam of 12hiringYC S24ActiveAI, Devtools	AI, Devtools	Active	YCS24
Zettascale ComputingChips for frontier AIteam of 2hiringYC S24ActiveAI, Devtools	AI, Devtools	Active	YCS24
ElodinUnified flight software and hardware for the mission of tomorrowteam of 5YC W24ActiveOther	Other	Active	YCW24
YonduRobots to Automate Fulfillmentteam of 7hiringYC W24ActiveAI	AI	Active	YCW24
Andromeda SurgicalAutonomous surgical robotsteam of 12hiringYC S23ActiveAI	AI	Active	YCS23
Zelos CloudThe Data Platform for Mission‑Critical Systemsteam of 3YC S23ActiveData, Devtools	Data, Devtools	Active	YCS23
rex.fitAutomating nutrition tracking.2 programsteam of 2YC W23 +1ActiveAI	AI	Active	YC +1W23
Stralis AircraftEmission free hydrogen electric aircraftteam of 4YC W23ActiveOther	Other	Active	YCW23
Integrated ReasoningFaster processors for solving NP-complete problemsYC S22ActiveAI, Devtools	AI, Devtools	Active	YCS22
Polymath RoboticsGeneral Autonomy for Industrial Vehiclesteam of 25hiringYC S22ActiveAI	AI	Active	YCS22
AirMyneBuilding systems to remove carbon dioxide from air at industrial scaleteam of 112 programsYC W22 +1ActiveOther	Other	Active	YC +1W22
Andson BiotechEmpowering Mass Spec for Biotech and Beyondteam of 12YC W22ActiveOther	Other	Active	YCW22
AstroForgeWe Mine Asteroidsteam of 10hiringYC W22ActiveOther	Other	Active	YCW22
EnlightraMulticolor lasers for ultrafast data transmissionteam of 22YC W22ActiveOther	Other	Active	YCW22
FleetzeroMaking all ships robots.team of 40YC W22ActiveOther	Other	Active	YCW22
Hubble NetworkBluetooth to Spaceteam of 50YC W22ActiveDevtools	Devtools	Active	YCW22
Impossible MetalsUnderwater robotic vehicles that collect battery metals responsiblyteam of 20YC W22ActiveAI	AI	Active	YCW22
Industrial NextIndustrialNext builds the AI brain for manufacturing –…team of 92 programsYC W22 +1ActiveAI	AI	Active	YC +1W22
NearWaveHelping physicians select the right therapy for breast cancer patientsteam of 3YC W22ActiveAI	AI	Active	YCW22
Palitronica IncDetect cyber attacks on critical physical infrastructureteam of 6YC W22ActiveOther	Other	Active	YCW22
SeaboundCarbon capture equipment for shipsteam of 18YC W22ActiveOther	Other	Active	YCW22
WyvernHigh-res hyperspectral pictures of Earth from spaceteam of 26YC W22ActiveOther	Other	Active	YCW22
Humane GenomicsA platform to make artificial viruses as cancer therapeutics.team of 5YC S21ActiveOther	Other	Active	YCS21

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