AI hardware design platform Flow raises $50M at a $750M valuation
Hardware engineering agent platform lands $50M Series B co-led by Valor and Atreides; its speed claims remain company-reported.
AI hardware design platform Flow Engineering announced on September 30 a $50 million Series B round, lifting its valuation to $750 million.
The round was co-led by Antonio Gracias, founder of Valor Equity Partners, and Gavin Baker of Atreides Management, with Sequoia Capital participating; Sequoia also led the company's Series A in October 2025.
Flow runs AI agents inside CAD, simulation and documentation tools to do impact analysis, flag conflicts and catch requirement failures. Its customers include Rivian, Volkswagen's joint venture RV Tech and Anduril. The claim that development cycles shrink from months to days is the company's own; the announcement carries no independent assessment.
Sources:https://www.flowengineering.com/blog/series-b-press-releasehttps://siliconangle.com/2026/10/01/flow-engineering-raises-50m-to-bring-the-power-of-ai-to-hardware-engineering