3+ Best Alternatives to IonQ in 2026
Trapped-ion quantum computing as a cloud service.
Looking for an alternative to IonQ? Below are 3 AI startups working in the same space — ranked by our Neuron score so the most credible options come first. Each card shows what makes the tool a viable substitute, pricing signals, and funding stage.
- 1View alternative →
PSI Quantum
UndisclosedPhotonic quantum computing for fault-tolerant AI workloads.
Why it's similar: Shares categories with IonQ — AI + Quantum.
💵 Enterprise · Contact sales
- 2View alternative →
Multiverse Computing
UndisclosedPioneering the era of efficient and secure AI by empowering organisations to run production-ready AI with tailored solutions.
Why it's similar: Shares categories with IonQ — AI + Quantum.
💵 Enterprise · Contact sales
- 3View alternative →
SandboxAQ
UndisclosedTransforming the world with AI and advanced computing, applying quantitative AI to solve complex challenges in various industries.
Why it's similar: Shares categories with IonQ — AI + Quantum.
💵 Enterprise · Contact sales
Frequently asked questions
What are the best alternatives to IonQ?
The top-ranked alternatives to IonQ on NeuronFeed are PSI Quantum, Multiverse Computing, SandboxAQ. Rankings are based on our Neuron score, which weighs funding, momentum and editorial signal.
Is there a free alternative to IonQ?
Most direct alternatives are paid. Check individual profiles for free trials and startup discounts on our deals page.
How is this list ranked?
We rank alternatives by shared categories with IonQ, then by our proprietary Neuron score (0–100) which combines funding, team quality, momentum, and editorial input. The list refreshes every 30 days.
IonQ vs PSI Quantum — which is better?
It depends on use case. PSI Quantum (Photonic quantum computing for fault-tolerant AI workloads.) is the #1-ranked alternative. See the full side-by-side at /compare/ionq-vs-psiquantum.
Explore more around IonQ
Contextual paths to related AI startups, deals and rankings.