Bezos' Prometheus lands $12B Series B at $41B valuation to build AI that compresses the engineering design cycle — TFN

Prometheus raises $12B Series B at a $41B valuation, backed by JPMorgan, Goldman Sachs, BlackRock, DST Global, and Arch Venture Partners, bringing total funding to over $18B

The physical AI startup, co-led by Jeff Bezos and Vik Bajaj, is building what it calls an “artificial general engineer:” AI tools to compress the design-to-manufacturing cycle for physical products from years to months

Prometheus has 150 staff across San Francisco, London, and Zurich and has not yet disclosed commercial revenue

Most AI companies are racing to build smarter software. Prometheus is racing to redesign how physical things get made. The San Francisco startup, co-led by Jeff Bezos and scientist-entrepreneur Vik Bajaj, announced its $12B Series B, pushing its valuation to $41B and total funding past $18B in less than a year of existence.

Investors in the round include JPMorgan Chase, Goldman Sachs, BlackRock, DST Global, and Arch Venture Partners. Bezos, who was the largest backer of the company’s $6.2B Series A at launch in November 2025, contributed again in this round.