Flow Engineering Raises $50M in Series B Funding

The company will develop AI tools for hardware engineering and expand engineering, security and commercial teams after reaching a $750 million valuation.

Round size
$50M
Stage
Series B
Headquarters
United States
Announced
Sep 30, 2026

Keeping requirements connected to the design

Flow links requirements with CAD, simulation, code and test work. Engineers can inspect the downstream effects of a change and see whether the resulting design has the required verification coverage. Customers include Rivian, Anduril, Joby Aviation and Stoke Space.

Building AI into controlled engineering workflows

The new investment supports an AI harness with review, branching and evaluation controls, alongside work toward FedRAMP authorization. At Rivian, use of the platform grew from 40 to 1,500 users in seven months.

Sources

  1. Flow Engineering: funding announcement
03 / Related rounds

Related funding rounds

01
Series B · Cloud infrastructure

GMI Cloud

GPU cloud infrastructure and inference services for training and running AI models across the United States and Asia-Pacific.

Led by ARCHIV
$223M
03
Series B · Energy

Reverion

Reversible fuel-cell plants for on-site power generation and gas storage.

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$175M