Key Takeaways

  • Flow Engineering raised $50 million at a $750 million valuation to automate physical engineering checks.
  • Hardware companies historically complete systems integration and verification only once every 6 to 12 months.
  • Flow applies software CI/CD principles to hardware, tracking how small component changes ripple across systems in real time.
  • Flow's go-to-market wedge is serving as the single system of record for engineering requirements and verification data.

The 12-Month Hardware Bottleneck

Software engineers push code dozens of times a day. If a pull request breaks a dependency, automated tests fail within minutes. Hardware teams have lived in a completely different reality.

“The single biggest problem in hardware companies is systems integration and verification,” explains Flow Engineering CEO Pari Singh. When mechanical, electrical, thermal, and firmware teams work separately, nobody knows if parts actually fit together until late in the development cycle. Historically, full verification happens only once every 6 to 12 months. An unspotted tolerance error or thermal conflict sits hidden for quarters. By the time someone catches it on a physical test bench, redesigning the part costs millions of dollars and months of lost time.

External supplier networks make this fragmentation worse. Component suppliers often adjust specifications without direct visibility into the complete assembly. A tiny change in a bracket by one supplier can throw off thermal dissipation or cable routing for another team months later.

Continuous Verification as the System of Record

Flow aims to eliminate that delay by importing continuous integration and continuous delivery (CI/CD) into physical manufacturing.

Singh recently announced that Flow raised $50 million at a $750 million valuation to tackle this gap. “AI is completely transforming hardware engineering just in the way that it's transformed software engineering in the last year,” Singh says. “what AI enables for us is this idea that we can move from manual verification which is once every year to continuous verification just like we have in software engineering with CI/CD.”

Instead of waiting for annual physical integration tests, Flow continuously tracks requirements and dependencies across teams. When an engineer adjusts a spec, the platform computes the ripple effect across mechanical, electrical, and supplier constraints in real time.

To win the category, Flow is focusing on one specific entry point. “So we are the system of record for requirements and verification in these hardware companies,” Singh says. “That is that is our wedge.” By owning the source of truth for design constraints, Flow sits directly in the daily workflow of every engineer and external supplier touching the product.

What to Do With This

Audit your hardware engineering dependencies this week. Map every handoff between your internal teams and external suppliers, then identify the longest lag between a spec change and an integration test. If your verification cycle exceeds 30 days, establish a centralized tracking system for tolerance and requirement changes before your next prototype run.