We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.
There are 16 start-ups with an aggregate funding of $4.3b. The average funding per company in this subset is $267.6m.
Last update to the database: Feb 18, 2025. See changelog.
Rigetti Computing is a quantum computing company based in Berkeley, California.
10
Funding Rounds
$269.5m
Money raised
HYPRES is a developer of superconducting microelectronics for defense, wireless, and optical network industries.
1
Funding Rounds
$50.0k
Money raised
Commonwealth Fusion Systems is a Cambridge, Massachusetts-based research and development company developing fusion power systems based on ARC tokamak reactors.
5
Funding Rounds
$2.1b
Money raised
D-Wave Systems is a Canadian company that designs and manufactures quantum computing and superconducting electronics, and AI software.
11
Funding Rounds
$185.7m
Money raised
Quantum Circuits Company is a company that is aiming to develop, manufacture, and sell the first practical and useful quantum computer using superconducting qubits. It is based in New Haven, Connecticut and founded in 2015 by Robert J. Schoelkopf, Michel Devoret, Luigi Frunzio and Brian W. Pusch.
4
Funding Rounds
$18.0m
Money raised
PsiQuantum is a company that is building a general-purpose silicon photonic quantum computer.
8
Funding Rounds
$1.2b
Money raised
Tokamak Energy is a fusion energy producer founded in 2009 by Alan Sykes, David Kingham and Mikhail Gryaznevich.
7
Funding Rounds
$172.1m
Money raised
IQM is a company utilizing superconducting technology to build scalable quantum computing hardware.
6
Funding Rounds
$211.9m
Money raised
Superconductor Technologies was a developer of high-temperature conduction products for wireless applications.
2
Funding Rounds
$12.5m
Money raised
Company building "quantum accelerators” a type of computing system that work in conjunction with classical computers to solve problems that are impractical or impossible to solve on classical computer alone.
1
Funding Rounds
$1.5m
Money raised
A company making quantum electronic design automation toolkits for designing and optimizing nano and quantum electronics.
1
Funding Rounds
SeeQC is a company developing and commercializing quantum technologies founded in 2019.
3
Funding Rounds
$56.4m
Money raised
Nord Quantique develops quantum processors based on a second-generation technology. They have developed a technology that aims to reduce, as much as possible, the number of physical qubits required to encode a single logical qubit. The company aims to address the current quantum processor's problems and to deploy the full potential of quantum computer applications. The company is located in Sherbrooke, Quebec, Canada and was founded in 2020.
1
Funding Rounds
$7.5m
Money raised
AML Superconductivity and Magnetics is a company founded in 1995 by Gerry Stelzer, Mark Senti and Rainer Meinke.
1
Funding Rounds
$202.1k
Money raised
Gwr Instruments, Inc. is a San Diego-based company manufacturing global and environmental monitoring systems founded in 1979.
1
Funding Rounds
$13.0k
Money raised
THEVA is a superconductor company.
1
Funding Rounds
$7.9m
Money raised