PsiQuantum

PsiQuantum builds photonic quantum computers designed to achieve fault-tolerant, million‑qubit scale, and develops algorithms and software for commercial use. The privately held company is headquartered in Palo Alto, and in 2024 announced government-funded projects to build utility-scale systems in Brisbane and Chicago. It collaborates with enterprise and defense customers, with publicly named partners including Lockheed Martin, Mercedes‑Benz, Boehringer Ingelheim, and Mitsubishi Chemical.