Flux Secures $37M to Unleash an AI Hardware Engineer for Everyone

SAN FRANCISCO, CA – February 27, 2026 – In a significant move that signals growing investor confidence in artificial intelligence’s power to reshape the physical world, hardware design platform Flux today announced it has raised $37 million in new funding. The capital infusion, comprised of a $27 million Series B led by 8VC and a previously undisclosed $10 million Series A, is set to accelerate the company's mission to democratize electronics manufacturing.

Flux is not another incremental improvement in design software. Instead, it positions itself as the world's first “AI hardware engineer”—an agentic AI capable of taking a product idea from a simple text prompt to a fully manufacturable circuit board design, all within a web browser. This funding validates a seven-year journey to lower the steep barriers of cost and expertise that have historically kept hardware creation in the hands of a specialized few.

A New Generation of Builders

For decades, bringing a new electronic device to life followed a rigid and expensive script. An entrepreneur or company with an idea had two primary options: hire a team of costly electrical engineers for a custom design or purchase expensive, often oversized, off-the-shelf components. Flux presents a radical third option.

“With Flux, you can have a brilliant idea one day and hold the finished product in your hand a few weeks later,” said Flux CEO Matthias Wagner in a statement. The platform allows users to describe their needs in natural language, after which the AI agent plans layouts, sources components from vast databases, tests for compatibility, and even suggests ways to reduce costs and mitigate supply-chain risks.

The impact is already measurable. The company reports that over one million makers, designers, and entrepreneurs have used the platform to design nearly 6.5 million devices. The applications span a wide spectrum of innovation, from complex robotics and drone navigation systems to smart home controllers and wearables.

Real-world case studies illustrate the platform’s disruptive power. One customer, without hiring a single electrical engineer, developed and produced an IoT device that extracts critical data from construction machinery. Another is using Flux to design and ship custom electronics throughout Africa, bringing bespoke technology to new markets. In the high-stakes field of biotech, a research entity is using the tool to build IoT-enabled organ-on-chip platforms, accelerating drug discovery and biological modeling. These examples underscore a fundamental shift: anyone can be a builder.

The Money Behind the Mission

The $37 million investment provides substantial fuel for Flux’s ambitions. The $27 million Series B was led by 8VC, a venture firm known for backing companies tackling complex challenges in physical industries, with a portfolio that includes AI-driven robotics and autonomous vessel technology. The round also saw participation from existing investors Bain Capital Ventures, Liquid 2 Ventures, and Outsiders Fund.

This follows a previously unannounced $10 million Series A, which was led by Outsiders Fund and co-led by Bain Capital Ventures (BCV). BCV, a firm with a deep focus on AI infrastructure and its application in physical industries, has been a key partner, co-leading the Series A and participating in the Series B. This sustained financial backing from strategic investors highlights a shared belief in the massive market opportunity for AI-driven hardware design.

“We wrote Flux’s first check when they were only a few founders with an audacious vision to transform hardware design,” said 8VC partner Francisco Gimenez. “Seven years later, they’re redefining who can build electronic hardware. Their market is not simply electrical engineers designing PCBs. It’s the universe of makers from individuals to businesses to whole industries. We’re privileged to renew our support.”

This investment trend reflects a broader shift in Silicon Valley, where capital is increasingly flowing toward AI applications that solve tangible, real-world problems beyond software. Investors see a vast, untapped market of creators who have been locked out of hardware innovation by its complexity and cost.

How an AI Engineer Thinks

At its core, Flux challenges the dominance of traditional Electronic Computer-Aided Design (eCAD) software like Altium, Eagle, or the open-source KiCad. These powerful tools have long been the industry standard but come with a steep learning curve, expensive licenses, and a reliance on powerful desktop computers. They are tools for experts, built by experts.

Flux’s AI, in contrast, was designed for accessibility. The entire environment is cloud-native and browser-based, eliminating software installation and enabling seamless collaboration, version control, and simulation. Trained on hundreds of thousands of real-world designs, the AI acts as an intelligent partner. It understands user intent, automates tedious tasks, and provides a complete set of files that any manufacturer can use to produce a finished board.

This approach delivers bespoke PCBs at a cost close to the raw materials. By creating custom-fit designs, Flux reduces the need for complex multi-board integrations, which in turn leads to faster production, lower costs, and easier maintenance for the final product. It represents a paradigm shift from designing circuits to designing systems.

Reshaping the Global Electronics Landscape

Flux’s rise is part of a larger movement where AI is breaking out of the digital realm and into engineering, manufacturing, and logistics. As industries grapple with skilled labor shortages and fragile global supply chains, AI-powered automation is no longer a luxury but a necessity. Flux directly addresses this by embedding the expertise of a senior electrical engineer into its software, making that knowledge instantly accessible.

The company plans to use the new funding to extend its AI’s capabilities to handle even more complex electronic use cases, further pushing the boundaries of what is possible. The ultimate vision is a fundamental restructuring of the electronics business, moving power away from a few giant manufacturers and placing it into the hands of millions of creators.

“Historically, building hardware has been insanely difficult,” Wagner stated. “When you’re working with atoms instead of electrons, everything costs more and takes longer. Those limitations have always kept hardware in the hands of an elite few. By bringing the cost of design down to near-zero, we’re giving millions of non-experts the ability to build for niche audiences—or make something for themselves. The electronics business has always been structured around giant manufacturers. Now, for the first time, Flux puts creators at the center.”