IonQ, based in College Park, Maryland, builds trapped-ion quantum computers offered through major cloud platforms and sold for on-premise installation. It is listed on the New York Stock Exchange.
At a glance
| Price from | Custom |
| Best for | Organisations buying on-premise systems or using cloud quantum access |
From IonQ's own website.
What stands out
- Available on major cloud platforms
- On-premise systems for sale
Worth knowing
- Competes with much larger technology groups
- Price not published
How it ranks
IonQ is ranked 4th of 10 in Best Quantum Computing Companies (Lister Score 93.4).
#4 in Best Quantum Computing Companies · Lister Score 93.4
IonQ announced in September 2026 that Florida International University selected its Superion 256 platform for an on-premise deployment..
| Rank | Best Quantum Computing Companies | Score |
|---|---|---|
| 1 | IBM Quantum | 96.9 |
| 2 | Google Quantum AI | 95.7 |
| 3 | Quantinuum | 94.6 |
| 4 | IonQ | 93.4 |
| 5 | PsiQuantum | 92.1 |
| 6 | QuEra Computing | 90.8 |
| 7 | D-Wave Quantum | 89.5 |
| 8 | Atom Computing | 88.2 |
| 9 | IQM Quantum Computers | 86.9 |
| 10 | Rigetti Computing | 85.6 |
Frequently asked questions
How does IonQ rank on Lister?
IonQ is ranked 4th of 10 in Best Quantum Computing Companies (Lister Score 93.4).
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