PsiQuantum Secures $1 Billion to Accelerate Quantum Photonics

PsiQuantum, the Australian-founded quantum computing company with operations in Silicon Valley, has raised $1 billion in a Series E round that values the business at $7 billion. The financing was led by BlackRock, Temasek, and Baillie Gifford, with participation from NVentures, Macquarie Capital, Qatar Investment Authority, Morgan Stanley’s Counterpoint Global, and SentinelOne’s venture arm.

The raise makes PsiQuantum one of the best-funded quantum startups globally and underscores the growing flow of institutional capital into the sector. Recent financings by peers include Quantinuum, which reached a $10 billion valuation, IQM at $1 billion, and Infleqtion, which is preparing to go public at $1.8 billion.

Nvidia Joins Forces

Nvidia’s participation marks a shift from its earlier public stance. At CES in January, CEO Jensen Huang said useful quantum computers were likely “15 to 30 years away.” By March, during Nvidia’s Quantum Day, he retracted the statement, acknowledging his assessment had been wrong. NVentures has since invested in three leading firms—Quantinuum, QuEra, and now PsiQuantum.

Alongside the investment, Nvidia and PsiQuantum announced a collaboration spanning quantum algorithms, GPU-QPU integration, and software development. The companies will also explore ways to align Nvidia’s AI compute platforms with PsiQuantum’s silicon photonics technology.