Y Combinator logo

Y Combinator

$3.2B
Pre-Seed
Seed
Aerospace
Transportation
Robotics
Bio & Health
Manufacturing
Energy & Climate
Computing
Defense & Public Safety
Supply Chain
Construction & Housing
Agriculture
Astranis logo

Astranis

Builds low-cost satellites in high-energy orbits.

Aerospace
12
Relativity Space logo

Relativity Space

Designs and builds 3D printed rockets.

Aerospace
5
OpenAI logo

OpenAI

Develops AGI.

Computing
4
Flexport logo

Flexport

Builds global freight forwarding & logistics software.

Supply Chain
4
Scale AI logo

Scale AI

Provides training data for machine learning.

Computing
3
Astro Mechanica logo

Astro Mechanica

Building the next era of flight.

Aerospace
2
Cover logo

Cover

Designs, manufactures, & installs modular homes.

Construction & Housing
2
Boom Supersonic logo

Boom Supersonic

Manufactures sustainable supersonic airliners for speed & safety.

Aerospace
2
Gecko Robotics logo

Gecko Robotics

Ensures availability, reliability, & sustainability of infrastructure.

Robotics
1
Earth AI logo

Earth AI

Discovers and drills for critical minerals.

Energy & Climate
1
Living Carbon logo

Living Carbon

Fights climate change by enhancing trees' CO2 capture and storage genetically.

Energy & Climate
1
Solugen logo

Solugen

Produces carbon-negative substitutes for petroleum-based products.

Energy & Climate
1
Atomic Industries logo

Atomic Industries

Develops AI-powered tools for the manufacturing industry.

Manufacturing
1
Albedo logo

Albedo

Builds high-resolution earth observation satellites.

Aerospace
1
Charge Robotics logo

Charge Robotics

Builds automated solar construction robots.

Construction & Housing
1
Flock Safety logo

Flock Safety

Builds city surveillance systems for public safety.

Defense & Public Safety
1
Rain Neuromorphics logo

Rain Neuromorphics

Develops neuromorphic hardware for AI, creating cost-effective, self-learning artificial intelligence systems.

Computing
1
Carrot Fertility logo

Carrot Fertility

Fertility healthcare and family-forming benefits for employers and their employees.

Bio & Health
1
Heart Aerospace logo

Heart Aerospace

Builds electric planes.

Aerospace
1
Stoke Space logo

Stoke Space

Develops fully-reusable rockets.

Aerospace
1
Helion Energy logo

Helion Energy

Develops fusion generators for unlimited clean energy.

Energy & Climate
1
Atmo logo

Atmo

Provides AI weather forecasts for governments and enterprises.

Energy & Climate
0
Culture Biosciences logo

Culture Biosciences

Builds cloud-controlled bioreactors.

Bio & Health
0
Corvus Robotics logo

Corvus Robotics

Building autonomous warehouse inventory drones.

Robotics
0
Bronco AI logo

Bronco AI

Builds AI bots for supply chain operations.

Supply Chain
0
Radical Aero logo

Radical Aero

Builds high-altitude solar-powered aircraft.

Aerospace
0
Olympian Motors logo

Olympian Motors

Builds sexy electric cars.

Transportation
0
Epsilon3 logo

Epsilon3

Develops OS for spacecraft & complex operations.

Aerospace
0
Gridware logo

Gridware

Deploys remote grid-monitoring hardware.

Energy & Climate
0
StratumAI logo

StratumAI

Drills and analyzes mineral deposits.

Energy & Climate
0
NavierAI logo

NavierAI

Builds much faster simulations using a physics-ML solver.

Computing
0
Replit logo

Replit

Online coding platform for collaborative programming and hosting applications.

Computing
0
Shinkei Systems logo

Shinkei Systems

Provides automated solutions for fish harvesting.

Agriculture
0
Remora logo

Remora

Captures carbon emissions from semi-trucks.

Energy & Climate
0
Regent logo

Regent

Develops electric boat-flying machines for coastal transportation.

Aerospace
0
Zitara Technologies logo

Zitara Technologies

Provides predictive software for managing electric fleet batteries.

Energy & Climate
0
Quindar logo

Quindar

Cloud-based platform for spacecraft analysis and operations.

Aerospace
0
Ambercycle logo

Ambercycle

Recycles clothing using chemistry.

Bio & Health
0
Array Labs logo

Array Labs

Creates high-quality 3D imagery to enhance world understanding.

Aerospace
0
Guardian RF logo

Guardian RF

Develops RF communication solutions for secure and reliable data transmission.

Defense & Public Safety
0
Benchling logo

Benchling

Cloud-based software for life sciences R&D, streamlining laboratory data and collaboration.

Bio & Health
0
PermitFlow logo

PermitFlow

Offers a construction permit management platform for developers and contractors.

Construction & Housing
0
Turion Space logo

Turion Space

Offers space domain awareness and logistics services.

Aerospace
0
Aether Energy logo

Aether Energy

Develops AI software for solar installers to design, sell, and manage projects.

Energy & Climate
0
Abel logo

Abel

Turning body camera footage into completed police reports.

Defense & Public Safety
0
Zinite logo

Zinite

Builds 3-dimensional thin-film transistors.

Manufacturing
0
Onebrief logo

Onebrief

Builds software for large-scale operations planning.

Defense & Public Safety
0
DeepNight logo

DeepNight

Uses AI to develop advanced night vision technology.

Computing
0
Inversion logo

Inversion

Builds space capsules for cargo return to Earth.

Aerospace
0
Electric Air logo

Electric Air

A heat pump installer that offers quick estimates and transparent pricing.

Energy & Climate
0