DARPA Moves IBM, IonQ, Atom Computing and Diraq Into Stage C of the Quantum Benchmarking Initiative on 7 October 2026: What Government Testing of Their Hardware Must Show by 2033

What DARPA announced on 7 October 2026

The U.S. Defense Advanced Research Projects Agency moved four companies into Stage C of its Quantum Benchmarking Initiative: Atom Computing with neutral-atom arrays, Diraq with silicon CMOS spin qubits, IBM with modular superconducting processors and IonQ with trapped ions. They join Microsoft and PsiQuantum, which reached Stage C through an earlier DARPA pilot. Since mid-2024 the initiative has evaluated more than 20 companies. Its question is whether any approach can reach utility-scale operation, meaning computational value above cost, by 2033.

How Stage C differs from the first two stages

Stages A and B judged concepts and research plans, with awards of up to $1 million and $15 million. In Stage C a government evaluation team works alongside each company and tests its hardware to see whether the proposed machine can be constructed as designed and operated as intended. DARPA's program page puts Stage C awards at up to $300 million per performer.

Why outside testing matters for buyers and investors

Quantum roadmaps have so far been judged mostly on the vendors' own milestones. IBM, for one, says it expects to deliver its first fault-tolerant system in 2029. DARPA will now report its independent verification results to other U.S. government stakeholders. If those findings become accessible beyond government, hospitals, banks, ministries and investors that buy on roadmaps could gain a second reference point.