Physics AI Slashes Engineering Simulation From Days to Seconds, PhysicsX Raises $300M

PhysicsX, the London-based pioneer of physics AI, just closed a $300 million Series C on June 8, valuing the company at about $2.4 billion and oversubscribing the round, led by Temasek with new investors M&G Investments and Intrepid Growth Partners, alongside existing backers including NVIDIA, Siemens, Applied Materials, Atomico, and General Catalyst. Since the prior round, the company reports revenue doubling year over year, booked revenue tripling, and a headcount growth from roughly 150 to over 300 in the last year, with customer count also more than doubling. The funding scene mirrors a broader category surge, as Prometheus raised $12 billion and Mistral AI seeks billions to advance physics AI for industry, collectively about $15.8 billion in a single week. PhysicsX’s approach replaces traditional CFD and FEA workflows by training models on outputs from physics simulations, dramatically shortening design cycles. In context, General Motors reportedly compressed two weeks of aerodynamics analysis into minutes using AI trained on simulation data, illustrating the practical impact of physics AI.