[Research] USA Quantum Computing Companies, March 2026
- Mar 31
- 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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