CircuitHub takes $28m from Plural to make PCBs the way clouds make compute

The Cambridge-rooted, Massachusetts-based automated electronics factory has delivered more than two million boards across 20,000 engineers. Plural’s bet is on the trillion-dollar reshoring tailwind behind it.

CircuitHub, the automated-electronics-manufacturing company founded by Andrew Seddon, has raised $28m in funding led by Plural.

The round is the largest CircuitHub has disclosed in its 15-year history, and it will fund expansion of the company’s automated PCB factories across Europe and the United States, alongside continued engineering-team build-out and a move into full-service electronics manufacturing.

The pitch CircuitHub is selling is the cloud-economics analogy applied to circuit boards. The company’s first 5,000-square-foot ‘Grid’ facility in Massachusetts takes uploaded design files, runs them through robotic assembly lines supervised by computer vision and AI quality control, and ships finished PCBs to customers in days rather than the months that a conventional contract manufacturer typically quotes.

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A single Grid can produce a one-off prototype or batches of 10,000 units across multiple designs simultaneously, which on the company’s own framing makes high-mix manufacturing economically viable for the first time.

Andrew Seddon’s framing for the round was the operational pitch in a sentence. ‘Hardware companies face a tough choice: either spin up their own vertically integrated manufacturing from scratch, or rely on a legacy Western supply chain that’s been decaying for years,’ he said in the statement. ‘CircuitHub is the alternative: providing remote access to a cutting-edge factory through your browser or your AI agent.

Just as software companies share cloud compute, hardware companies can now share our Grid.’ The analogy is the one venture-side hardware investors have been waiting a decade to land in a concrete product.

CircuitHub’s track record gives the analogy its credibility. The company has delivered more than two million boards, placed over 133 million parts, and serves around 20,000 engineers across robotics, satellite, automotive-autonomy, defence and energy customers.

‘Physical AI’, the industry shorthand for embodied-AI hardware, is structurally bottlenecked at the PCB-and-assembly layer in a way that the model-and-software layer is not.

The market arithmetic Plural is underwriting is the part worth flagging. Around 95% of electronics projects involve fewer than 10,000 units, on the wider industry data CircuitHub’s release cites, yet the global electronics-manufacturing-services industry remains optimised for mass production at order volumes orders of magnitude larger.

The US has lost more than 85% of its share of the global PCB market to lower-cost overseas manufacturers, predominantly in China. The category is on track to clear $1tn in size on Global Market Insights’ forecast, and the long-tail of small-batch custom production has been the underserved segment of that market for most of the past decade.

The reshoring framing is what Plural’s investment thesis runs on. Plural partner Sten Tamkivi said what CircuitHub is doing is fundamental. Andrew and the world-class CircuitHub team are changing the unit economics of the entire industry.’ Tamkivi’s framing of resilience and sovereignty alongside the unit-economics argument distinguishes the Plural pitch from the standard hardware-platform thesis: European and US-controlled hardware manufacturing is now a strategic asset rather than a commodity-supply category.

The wider European reshoring track is accelerating. PaperShell’s €40.3m EU Innovation Fund grant earlier this year covered a copper-clad-laminate-and-PCB facility; the EU’s €700m NanoIC pilot line sits at a different layer of the same supply-chain stack; Analog Devices’ $1.5bn deal for Empower Semiconductor was the power-management version.

CircuitHub’s round is the assembly-and-fulfilment-layer version, calibrated against the small-batch end of the market the other names are not optimised for.

CircuitHub was founded in 2011 by Seddon, Rehno Lindeque and Jon Friedman; R&D remains in Cambridge, UK, with commercial operations anchored at the Massachusetts Grid for proximity to early customers. The company went through Y Combinator in 2012.

A planned European Grid would make CircuitHub the first dual-Atlantic automated-PCB platform at this scale. Post-money valuation, run-rate revenue and the European Grid timeline were not disclosed.