Prometheus valued at $41B after funding round led by Jeff Bezos

Jeff Bezos just co-signed one of the largest AI funding rounds in history, and it has nothing to do with chatbots. Prometheus, the industrial AI company Bezos co-leads, closed a $12 billion Series B that values the startup at $41 billion.

From $6.2B to $41B in about seven months

Prometheus closed its Series A at $6.2 billion back in November 2025, with Bezos as the largest backer. Now, roughly seven months later, the company has more than sextupled its valuation.

The Series B round, which closed on June 11, 2026, pulled in institutional heavyweights. JPMorgan Chase, Goldman Sachs, and BlackRock all participated alongside Bezos.

Prometheus is co-led by Bezos and Vik Bajaj, a former Google executive and co-founder of Verily, Alphabet’s life sciences subsidiary.

Prometheus is developing AI systems designed for engineering, manufacturing, and product design. Think jet engines, industrial components, and the kind of complex physical products where a single design flaw can cost millions or worse.

Bezos has been vocal about positioning Prometheus as a tool that enhances engineers rather than replaces them, pointing to a looming shortage of skilled engineers in industries that need them most.

One thing Prometheus is decidedly not doing is anything related to crypto or blockchain. The company’s funding activities reference no digital assets or tokens.

The $18.2 billion in total funding Prometheus has raised across two rounds in under a year makes it one of the fastest-capitalizing startups in tech history.

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