Precision PCB Assembly and Electronic Manufacturing in Portsmouth
Your products. Our engineering. Built with care, accuracy and pride.
Trusted by UK businesses for over 35 years, Phase One Electronics delivers high quality PCB assembly, electronic manufacturing, prototyping and full system builds. Our experienced team provides reliable, cost effective solutions for companies across Portsmouth, Hampshire and throughout the United Kingdom.
Welcome to Phase One Electronics
Phase One Electronics is one of the longest established PCB assembly and electronic manufacturing companies Nationwide. Started in Portsmouth in 1988, we have supported organisations across the UK with dependable build quality, close engineering support and a genuine commitment to customer satisfaction. Our reputation has grown through consistency. Every board is built by trained professionals who care about the final product just as much as our customers do.
With more than three decades of experience, our company blends traditional engineering values with modern, automated manufacturing technology. This combination allows us to maintain outstanding quality while keeping production costs manageable for businesses of every size. From one off prototypes to regular production batches, our team provides a flexible and customer focused service that ensures your products are delivered correctly, inspected properly and ready for the next stage of your project.
Trusted PCB Assembly and Electronics Manufacturing
Businesses choose Phase One Electronics because we understand that PCB assembly is more than placing components. It requires accuracy, attention to detail and complete consistency. Many of our customers operate in highly regulated or safety driven industries such as marine, medical, defence, transportation, surveillance and automotive sectors. These environments demand reliability without compromise. Our team is trained to strict standards, including J-STD-001, ensuring that every build meets quality expectations.
Our facility in Portsmouth is equipped to handle prototype work, small batch production and full scale manufacturing. We support free issue projects or turnkey solutions where we manage procurement, traceability and supply chain processes. The result is a smooth and transparent service that removes stress from your engineering and project teams.
A Customer Focused Approach
Every customer receives a personal, respectful and open working relationship with our team. We believe communication is essential. From understanding your technical drawings to helping identify potential build issues, we aim to become a trusted part of your supply chain rather than just an external provider.
Many of our customers stay with us for years because of our willingness to help refine builds during the assembly process. If we identify an issue that may affect long term product reliability, we will discuss it with you and offer solutions. This proactive approach has prevented countless future faults for customers across the UK.
What We Do
Phase One Electronics provides dependable PCB assembly and electronic manufacturing services for businesses across the UK, Europe and the USA. Our team combines more than three decades of experience with careful manual inspection and modern production methods. Every build is completed with accuracy, consistency and full attention to detail.
These services allow us to support the entire product lifecycle, starting from an initial design concept through to completed assemblies ready for customer shipment or integration into your next stage production.
Why Quality Matters
Electronic assemblies do not always fail during initial testing. Many faults only appear after months or years of operation. This is why our team focuses on correct component handling, precise assembly and reliable soldering. Every product that leaves our workshop is built with long term reliability in mind. We understand how costly product recalls can be, especially for businesses supplying regulated markets or handling complex installations.
Our engineers use modern manufacturing equipment combined with careful manual inspection. Even with automated technology, experienced human checks remain vital in ensuring the highest possible build quality.
Supporting Businesses Across Hampshire, the UK, Europe and the USA
Based in Portsmouth, Phase One Electronics works with companies across Hampshire, the South Coast and throughout the UK. Our location near major transport routes ensures fast, reliable shipping, and many customers visit our facility to review projects in person.
We also support clients across Europe and the USA, providing smooth logistics, clear communication and dependable production for overseas projects.
We remain approachable and supportive at every stage—whether you’re an established manufacturer or a growing business bringing new technology to market.
Visit Our Portsmouth Facility
We invite all customers to visit Phase One Electronics and see our work first-hand. Meeting the team and viewing the assembly process gives you complete confidence in how your products are built, inspected and handled. As an ISO 9001–certified manufacturer with IPC-A-610 trained technicians, we maintain strict, traceable quality standards throughout every stage of production.
Many long-standing clients value this level of openness, the assurance of certified processes, and the strong working partnerships it creates.
We welcome project discussions, technical reviews and site tours. Whether you are exploring a new build or looking to move an existing product to a reliable manufacturing partner, our team is ready to help.
Start a conversation with us today and discover how we can support your next project.
