Over 35 Years of Precision PCB Assembly & UK Electronics Manufacturing

Your products. Our engineering. Built with care, accuracy and pride.

Since 1988, Phase One Electronics has supported UK businesses with dependable PCB assembly, electronic manufacturing, prototyping and complete system builds. With more than three decades of experience, our team delivers consistent quality, reliable lead times and engineering-focused support for marine, medical, automotive, defence, communications and industrial sectors.

A Legacy Built on Engineering Excellence

Phase One Electronics was founded in Portsmouth in 1988 by Tony Stanley, an experienced engineer with a background in Commercial, Military and Space industries. From the beginning, Tony recognised that many UK businesses depended on overseas PCB assembly and often faced long lead times, communication challenges and inconsistent quality.

Phase One was created to offer something different: a skilled, local electronics manufacturing partner that could support British engineering with reliable build quality, transparent communication and genuine technical understanding. Over more than three decades, that vision has grown into a respected, long-standing electronics manufacturer that many customers have trusted for years.

Today, Tony’s passion for precision and workmanship still sits at the heart of our business. His belief in high-skill UK manufacturing and investment in people has shaped Phase One Electronics into:

  • A team of experienced engineers and assembly specialists
  • A facility equipped for SMT, through-hole, prototyping and cable assembly
  • A business built on strong relationships and long-term customer trust
  • A trusted partner known for reliability, technical understanding and consistent results

More than thirty five years later, our ethos remains unchanged: skilled people, reliable processes and products built properly.

A Team Built on Skill, Care and Professionalism

Our employees are the reason Phase One Electronics has earned a reputation for consistent, high-quality electronic assembly. Many of our engineers and technicians have been with us for years, bringing valuable experience and deep attention to detail to every build.

We approach each PCB with the mindset that someone’s equipment, system or product depends on it performing correctly. This culture of care is what makes the difference between an assembly line and a professional electronics manufacturing team.

Skilled technicians who understand engineering
Our staff are not simply operators — they are problem solvers, craftsmen and engineers in their own right.
Attention to detail
Every PCB is handled with precision, care and a full understanding of its importance.
Pride in workmanship
We build every board as if it were going into our own equipment — correctly, carefully, and with pride.
A culture of communication
We speak openly with customers, raise issues early and suggest improvements wherever possible.

A Full-Service Electronics Manufacturing Partner

Phase One Electronics offers a complete suite of PCB assembly, wiring and system build services to support your entire product lifecycle. From early prototypes through to ongoing production batches, we provide dependable manufacturing that you can integrate directly into your project plans.

Surface Mount PCB Assembly (SMT)

High-precision SMT placement, controlled reflow processes and professional inspection for compact, high-density boards.

Through-Hole PCB Assembly

Clean, accurate through-hole assembly carried out by trained specialists, ideal for industrial, automotive, marine and legacy systems.

Inspection & Test

Detailed inspection and appropriate testing help identify issues early and confirm that every assembly performs as expected.

BGA Re-work

Professional BGA removal, replacement and alignment using controlled heating and correct handling techniques.

PCB Prototyping

Rapid, accurate prototypes to support product development, testing and design refinement, with clear pathways to production.

Cable Assemblies & Box Build

Wiring looms, harnesses and full box build services, including assembly, labelling and final checks ready for installation or further integration.

Together, these services allow us to support your product from initial concept through to finished assemblies ready for shipment, installation or the next stage of your manufacturing process.

Local UK Manufacturing You Can Trust

We are proud to keep all PCB assembly, wiring and system integration work here in Portsmouth. Local manufacturing provides clear communication, predictable lead times and confidence that your products are built by trained UK professionals.

For industries where quality, regulation and traceability matter, UK-based assembly ensures full control from start to finish.

Our Approach: Quality, Communication & Support

While our technical capabilities matter, the way we work with customers is what truly defines our business. We believe in open communication, practical engineering support and building strong, long-term partnerships. Many of our customers have trusted us for more than a decade because our service is reliable, consistent and genuinely helpful.

We listen first

Understanding your requirements helps us deliver the correct solution from the start.

Clear communication at every stage

We provide straightforward updates, practical insight and open dialogue throughout the build.

We proactively identify issues

If we spot a potential risk, we raise it early and provide solutions that protect the final product.

We care about your project

Your success is our success. We take pride in building assemblies that perform reliably in the real world.

A Facility Designed for Quality Manufacturing

Our Portsmouth facility is purpose-built to support a wide range of electronic manufacturing activities. Whether you need one-off prototypes, small batch runs or consistent, repeatable production, our processes are designed to maintain clarity, traceability and efficiency at all times.

Every customer’s components are securely stored, fully documented and handled according to strict build procedures that ensure reliability across every batch.

Prototyping and one-off builds

Rapid builds to support development and testing phases.

Small to medium production runs

Reliable, repeatable manufacturing based on proven processes.

Cable assembly and wiring looms

Hand-built cable assemblies and wiring looms tailored to your design.

Mechanical builds and box build integration

From enclosures to full system integration — complete builds ready for deployment.

Relationships That Last

Many of our customers have worked with Phase One Electronics for years. They value our honest communication, consistent quality and willingness to help refine builds during the manufacturing process. We aim to become a dependable extension of your engineering team rather than just an external supplier.

If we identify anything that could affect long-term reliability, we raise it, discuss it and help you find a practical solution. This proactive approach has helped prevent countless issues in the field and supports our customers in delivering robust, dependable products to their own markets.

Trusted UK Electronics Manufacturing Since 1988

For more than 35 years, Phase One Electronics has been delivering reliable PCB assembly and electronic manufacturing services to customers across the UK. From our founder’s engineering background to our experienced team and modern facility, our mission has always been the same: to build high-quality electronic assemblies with care, accuracy and pride.

If you are looking for a dependable UK manufacturing partner to support your next project — from prototypes through to production — we are ready to help.