Rigetti Computing

Superconducting-qubit maker with its own chip foundry; publicly listed.

Berkeley, CA, US · 2013 · RGTI

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 Dec 2024

Ankaa-3 — 84 qubits at 99.5% 2-qubit fidelity

Reached

Rigetti Computing — Rigetti launched its 84-qubit Ankaa-3 superconducting system with a 99.5% median two-qubit gate fidelity — a major reliability jump from a redesigned qubit layout and Alternating-Bias Assisted Annealing, available on Rigetti's cloud and later AWS Braket / Azure.

Quantum Computing

Rigetti Computing

Press · 2024-12 Read