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[Research] USA Quantum Computing Companies, March 2026

  • 1 day ago
  • 1 min read

150+ active companies mapped. 20 deep profiles. Hardware, software, sensing, and defense.


Quantum computing is no longer a future bet. It's a present-day industry.


IonQ — $130M annual revenue, first quantum company past $100M Google — verifiable quantum advantage (Willow chip, Nature) 


Microsoft — Majorana 1, world's first topological qubit chip 


NVIDIA — invested in Quantinuum, QuEra, PsiQuantum simultaneously, launched NVQLink


Quantinuum at $10B valuation. PsiQuantum at $7B. SandboxAQ at $5.75B. Six pure-play quantum companies now trading on US exchanges. Infleqtion listed on NYSE last month.


From Big Tech to defense primes — the full US quantum ecosystem in one report.


 
 
 

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