Valor, Atreides, and Sequoia back AI startup Flow Engineering at $750M valuation
Flow Engineering raised $50 million at a $750 million valuation for AI hardware-design agents.
San Francisco-based Flow Engineering announced a $50 million Series B at a $750 million valuation. The round was co-led by Antonio Gracias of Valar Equity Partners and Gavin Baker of Atreides Management, with Sequoia Capital and former Sequoia partner Roelof Botha participating; Botha joined the board. Flow builds AI agents that align CAD drawings with product requirements, simulations, and test results. Named customers include Anduril, Rivian, Joby Aviation, General Motors, and Stoke Space.
- Series B totals $50 million at a $750 million valuation.
- Valar Equity Partners and Atreides Management co-led; Sequoia participated.
- Agents align CAD designs with requirements, simulation, and testing.
- Customers include Anduril, Rivian, Joby Aviation, and General Motors.
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In Brief
Posted:
2:07 PM PDT · September 30, 2026
Flow Engineering, a startup that offers AI tools for hardware design, has raised a $50 million Series B round at a $750 million valuation from some big-name investors, the company announced on Wednesday.
The round was co-led by Antonio Gracias of Valar Equity Partners (best known for its investments in Elon Musk’s companies, particularly SpaceX) and Gavin Baker of Atreides Management (a hedge fund that has also backed Musk’s companies and others like AI chipmaker Cerebras). Sequoia Capital, which led Flow’s Series A round last October, also participated, as did former Sequoia partner Roelof Botha, who invested as an individual investor. Botha has joined Flow’s board, too.
Three-year-old, San Francisco-based Flow is is tackling the difficulties of hardware design by offering AI agents that automatically align CAD drawings with product requirements, simulation results, and other testing.
It names Anduril, Rivian, Joby Aviation, General Motors PPU (a joint venture between General Motors and TWG Motorsports), RV Tech (a Rivian and Volkswagen’s joint venture), Stoke Space, and others, as customers.
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