PsiQuantum

Silicon-photonic quantum computing aiming directly at a million-qubit, fault-tolerant machine.

Palo Alto, CA, US · 2015

Milestone note Oct 10, 2026

DARPA moved four more quantum companies to hands-on hardware testing — six rival approaches, one outside yardstick

On October 7 DARPA advanced Atom Computing, Diraq, IBM and IonQ to Stage C, the final phase of its Quantum Benchmarking Initiative, where government evaluators physically test each company's hardware to judge whether it can reach utility scale by 2033. They join Microsoft and PsiQuantum. Neutral atoms, silicon spins, superconducting circuits, trapped ions, topological qubits and photonics will now be measured by the same outside party.

Atom Computing

IBM

IonQ

Press · 2026-10-07 Read

Milestone note Sep 10, 2026

Washington put $400M into four quantum companies — and took equity in three of them

D-Wave, Rigetti and Quantinuum each finalized $100M CHIPS Act agreements with the Commerce Department on 8 September, with the federal government taking a minority, non-controlling equity stake as a condition. PsiQuantum signed for $100M separately. Every project is about manufacturing — traps, cryostats, detectors, packaging — not algorithms.

D-Wave Quantum

Rigetti Computing

Quantinuum

Press · 2026-09-08 Read

Milestone note Jul 22, 2026

PsiQuantum signs a $125M DARPA deal — a validation stage rivals didn't reach

PsiQuantum signed a $125M expanded agreement with DARPA under the Quantum Benchmarking Initiative — its largest US government award — to verify and validate its utility-scale, fault-tolerant hardware architecture and manufacturing. It's one of only two firms in the program's final Stage C, funding work at its Milpitas and Chicago sites toward a useful machine before 2033.

PsiQuantum

Press · 2026-07-22 Read