Quantum Companies in the United States

The United States leads the global quantum computing industry with the world’s largest concentration of quantum companies, from tech giants to innovative startups. Explore America’s quantum ecosystem across key hubs.

Major Quantum Hubs

Silicon Valley & California

The world’s largest quantum cluster featuring:

Google Quantum AI - Santa Barbara quantum research
IBM Quantum - San Jose quantum systems
Rigetti Computing - Berkeley quantum processors
Sandbox AQ - Palo Alto quantum applications
50+ startups in the Bay Area ecosystem

East Coast Corridor

Academic-industry quantum powerhouses:

IonQ - College Park, Maryland (trapped ion leaders)
Quantum Computing Inc - Leesburg, Virginia
MIT quantum startups - Cambridge, Massachusetts
Princeton quantum spinouts - New Jersey corridor

Emerging Clusters

Growing quantum regions:

Chicago - quantum networking and communications
Boulder/Denver - NIST quantum research ecosystem
Austin - quantum software and applications
Seattle - Microsoft quantum research

Key Statistics

120+ quantum companies headquartered in the USA
$2.5B+ in quantum investment (2020-2024)
50+ quantum startups founded since 2020
Top 5 global quantum patents holder by country

Industry Leaders by Category

Quantum Hardware

IBM - Superconducting quantum processors
Google - Quantum supremacy demonstrations
IonQ - Trapped ion quantum computers
Rigetti - Full-stack quantum computing
Atom Computing - Neutral atom systems

Quantum Software & Applications

Microsoft - Q# programming language and Azure Quantum
Classiq - Quantum algorithm design
Zapata Computing - Quantum software platform
Strangeworks - Quantum developer tools
Cambridge Quantum Computing (Quantinuum US operations)

Quantum Cloud & Services

Amazon Braket - Quantum cloud platform
IBM Quantum Network - Cloud quantum access
Google Quantum Cloud - Quantum processor access
Azure Quantum - Microsoft’s quantum cloud

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Investment & Funding

The US quantum sector has attracted significant investment:

Venture Capital

Sequoia Capital - Google, Rigetti investments
Andreessen Horowitz - Quantum software investments
Khosla Ventures - Early quantum hardware backing
In-Q-Tel - CIA’s quantum investment arm

Government Support

National Quantum Initiative - $1.2B federal investment
NIST Quantum Program - Standards and research
NSF Quantum Leap - Research partnerships
DOE Quantum Centers - National lab collaborations

Academic Excellence

Leading quantum research universities:

MIT - Quantum information processing
Stanford - Quantum hardware and algorithms
UC Berkeley - Quantum materials and devices
Harvard - Quantum sensing and simulation
Caltech - Theoretical quantum computing

Market Opportunities

Growing Applications

Financial Services - Wall Street quantum adoption
Healthcare - Pharma quantum drug discovery
Aerospace - NASA and defense quantum applications
Energy - Grid optimization and materials

Export Potential

Quantum hardware exports to global markets
Software licensing to international customers
Consulting services for quantum adoption
Research partnerships with global institutions

The most comprehensive directory of US quantum companies, updated regularly with new startups and developments.

Quantum Companies in USA