Smart, scalable electronics manufacturing - built for partnership

PCB Assembly. Cable & Wiring Harness Manufacture. Box Build & Electromechanical Assembly. We deliver high-quality electronics manufacturing - fast, flexible and with a human touch.

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Lego figure soldering a circuitboard

Based just outside Cambridge, at the heart of the UK’s innovation, tech and medtech ecosystem, Cap Air Systems partners with innovators who need manufacturing they can rely on.

From first prototypes to full production, we offer smart electronics assembly, agile thinking, and support that feels like an extension of your team.

We are brilliantly effective, proudly local, and obsessive about getting things right. And we enjoy what we do.

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what we do

We love what we do

PCB Assembly

We provide fast, flexible PCB assembly (SMT, PTH, mixed) with a knack for tight-turnaround, small-medium batches. We collaborate like part of your team, with BOM optimisation, DFM input and sourcing support included.

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Cable Assembly

We build high-quality cable assemblies, from single wires to complex harnesses, all on site with speed and precision. Our expert team handles everything in-house to ensure performance, not problems.

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Box Build & Electromechanical Assembly

We build fully integrated, production-ready units. Cables, PCBs, enclosures, wiring and testing under one roof. Smart integration, tidy wiring and rock-solid reliability is where we shine. We don’t just build, we streamline the process.

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ABOUT US

Quality, communication & long-term relationships

Cap Air Systems was founded on the belief that great manufacturing isn’t just about process - it’s about partnership.

We’re an experienced and friendly team, proudly based in Cambridgeshire, working with innovators across the UK and beyond to bring their products to life.

We care deeply about quality, communication and building long-term relationships. And we take huge pride in being part of the UK’s manufacturing future - not just its past.

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Lego figures working on a circuitboard

WE CARE

Sustainability

We believe in sustainability in every sense: environmentally, economically, socially and in building a resilient business.From ethical sourcing to responsible hiring, we’re serious about running a manufacturing business that leaves things better than we found them for people and planet.

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Join the team

We’re always looking for great people who care about doing things right.

Whether you’re just starting out or have decades of experience, if you value quality, teamwork, enjoying what you do and a bit of manufacturing geekery we’d love to hear from you.

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Quality

Quality isn’t a checkbox. It’s our default.

Every product we build and every process we run is guided by our obsession with doing things properly, consistently, and to the highest standard.

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WHY US

Values we live by

Expertise you can trust

We bring decades of hands-on electronics experience, and we still love learning.

Agility without drama

Fast, flexible, and responsive without cutting corners.

🤝

People-first partnerships

We build long-term relationships, not just one-off jobs.

♻️

Manufacturing with integrity

We care about how we work – for your designs, for our team, our customers, and the planet.