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Top Deep Tech Companies

357 Deep Tech companies, sorted by total funding raised.

357

Companies

Indexed tracks 357 Deep Tech companies.

TAE Technologies

Fusion energy company developing clean energy solutions.

Foothill Ranch, United States201–500Energy, Deep Tech
Corporate Round·$1.5B·Dec 2025
Sila Nanotechnologies

Develops and manufactures silicon-based anode materials and battery engineering services for EVs,...

Alameda, United States201–500Advanced Manufacturing, Deep Tech
Series G+·$1.2B·Jun 2024
Proxima Fusion

Develops QI stellarators and designs fusion power plants, partnering with utilities and institute...

Munich, Germany51–200Clean Energy, Deep Tech
Growth Equity·$1.1B·Jul 2026
Sunfire

Manufactures industrial electrolyzers producing green hydrogen and syngas for heavy industries an...

Dresden, Germany501–1000Clean Energy, Hardware
Growth Equity·$788.5M·Jul 2025
Oxford Quantum Circuits

UK company building and deploying superconducting quantum computers.

Oxford, United Kingdom51–200Deep Tech, Quantum Computing
Series C·$539.8M·Jun 2026
Nearfield Instruments

Dutch deep-tech semiconductor company specializing in advanced chip manufacturing technology.

Rotterdam, Netherlands51–200Deep Tech, Semiconductors
Series D·$527.6M·Jun 2026
Boston Metal

Develops Molten Oxide Electrolysis to produce low-carbon steel and recover valuable metals from m...

Boston, United States201–500Climate Tech, Manufacturing
Convertible·$505.0M·Jul 2025
Radiant

Clean energy startup developing portable nuclear microreactors as zero-emission alternatives to d...

El Segundo, United States51–200Nuclear Energy, Clean Energy
Series D·$465.0M·Dec 2025
Inertia

Inertia is a commercial fusion energy company.

Livermore, United States11–50Clean Energy, Deep Tech
Series A·$450.0M·Feb 2026
Hyperloop OneClosed

High-speed transportation company developing vacuum tube travel technology

Los Angeles, United States201–500Deep Tech, Transportation
Venture Round·$449.0M·May 2019
Zap Energy

Nuclear fusion energy company developing compact, low-cost fusion reactors using sheared-flow-sta...

Everett, United States51–200Nuclear Fusion, Clean Energy
Series D·$324.0M·Sep 2024
XPANCEO

Deep tech company developing smart contact lens computing platform.

Dubai, United Arab Emirates51–200Deep Tech, Hardware
Series A·$290.0M·Jul 2025
Quobly

French quantum computing startup using silicon semiconductor manufacturing.

Grenoble, France51–200Deep Tech, Quantum Computing
Series A·$288.0M·Jun 2026
Atom Computing

Quantum computing company building highly scalable, gate-based quantum computers using arrays of ...

Berkeley, United States51–200Deep Tech, Hardware
Series C·$283.0M·Jun 2026
XanaduIPO

Photonic quantum computing company building quantum computers using light-based technology, with ...

Toronto, Canada201–500Deep Tech, Quantum Computing
Series C·$241.0M·Nov 2022
Exodigo

Exodigo is a technology innovator combining the power of proprietary advances in 3D imaging, sens...

Israel201–500Deep Tech, Artificial Intelligence
Series B·$230.0M·Jul 2025
QuEra

QuEra Computing builds neutral-atom quantum computers, offering cloud and on-premises access to i...

Boston, United States51–200Deep Tech, Hardware
Venture Round·$230.0M·Feb 2025
Starcloud

Data centers in space

Redmond, United States1–10Cloud, Space Tech
Venture Round·$217.9M·May 2026
Windrose

Chinese electric vehicle manufacturer specializing in heavy-duty e-trucks

Stanford, ChinaDeep Tech, Electric Vehicles
Venture Round·$210.0M·Feb 2026
xLight

Extreme ultraviolet light source for advanced semiconductor creation

Palo Alto, United States11–50Deep Tech, Hardware
Grant·$201.6M·Jun 2026
Marvel Fusion

Munich-based fusion energy company developing laser-driven inertial fusion power plants for indus...

Munich, Germany51–200Deep Tech, Energy
Series B·$172.8M·Mar 2025
SpinQ

Chinese quantum computing company with commercial applications.

Shenzhen, China51–200Quantum Computing, Deep Tech
Series C·$152.0M·Apr 2026
ZutaCore

Zuta-Core develops a vacuum-based cooling device for electronic components.

Tokyo, Israel51–200Deep Tech, Energy
Series C·$148.0M·Jun 2026
Tokamak Energy

Fusion energy startup developing compact tokamak reactors and high-temperature superconducting ma...

Abingdon, United Kingdom201–500Deep Tech, Energy
Venture Round·$125.0M·Nov 2024
Cailabs

Innovative photonic products for telecommunications, free-space transmission, industrial lasers a...

RennesDeep Tech, Hardware
Series C·$104.8M·Jan 2025

Frequently Asked Questions

How many Deep Tech companies are tracked on Indexed?

Indexed tracks 357 Deep Tech companies, sorted by total funding raised.

Who are the top investors in Deep Tech?

Leading investors active in Deep Tech include Techstars, Antler, Plug and Play.

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