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Essex

UK electronics manufacturers and PCB assemblers based in Essex.

Printech Circuit Laboratories Ltd

Printech Circuit Laboratories Ltd is a Chelmsford-based bare-board PCB manufacturer with over 40 years' experience in specialist circuitry, fabricating rigid, flexible and rigid-flex boards, metal-backed circuits and PTFE microwave/RF boards in-house. The company holds ISO 9001, UL, JOSCAR and Cyber Essentials certification and serves the aerospace, defence and medical sectors.

Camputel Limited

Camputel provides specialist RF and general cable assemblies alongside surface-mount and through-hole PCB assembly, product assembly, prototype builds, and rework and modification services for the electronics industry, from its Colchester, Essex premises.

Concurrent Technologies plc

Concurrent Technologies plc designs and manufactures embedded computing boards and systems from Colchester, Essex, where it has been based since 1985. Its products include Intel-processor-based single board computers, VME, VPX and CompactPCI cards and rugged box-level systems built for long-life, harsh-environment deployments, with functional and environmental testing in-house. The Colchester and Theale (Berkshire) facilities hold AS9100 certification and JOSCAR supply-chain accreditation. Concurrent primarily builds its own board and system products rather than assembling third-party designs, serving aerospace and defence, industrial, medical and telecommunications customers with a team of 51-200 staff.

Brynleigh Technology Ltd

Brynleigh Technology is a family-run contract electronics manufacturer in Maldon, Essex, established in 1992 and certified to ISO 9001 and IPC-A-610 Class 3. Its SMT line places components from 0201 up to fine-pitch QFP, BGA and micro-BGA packages on rigid, double-sided boards, with mixed through-hole assembly using reflow, selective and lead-free or tin-lead soldering, and every board passes 100% AOI before and after reflow, supplemented by visual, boundary scan and customer-specified functional testing. Turnkey component supply is offered across prototype, low and medium-volume production for military and defence customers.

Kao Manufacturing Technology Ltd

Kao Manufacturing Technology is a small contract electronics manufacturer in Harlow, Essex, established in 2019, combining PCB design and manufacture with cable assembly production and testing. The team draws on decades of combined industry experience across multiple sectors, covering low and medium-volume production with surface-mount and through-hole assembly using reflow and wave soldering, discrete cable assembly, PCB fabrication and PCB testing.

Colter Products Ltd

Colter Products manufactures its own range of programmable logic controllers and FMT-400 modular controllers from Great Dunmow, Essex, trading as The Automation Specialists, and offers PCB and panel design and assembly to other customers. The ISO 9001-certified company covers material procurement, mixed surface-mount and through-hole assembly with reflow, hand and wave soldering, visual inspection, and electro-mechanical and panel/cabinet build for low and medium-volume orders. Customers are mainly in industrial automation and automotive control.

Ponting Engineering Consultants Ltd

Ponting Engineering Consultants provides electrical, electronic and moulded product design through to turnkey PCB assembly from Ongar, Essex. The company also carries out electro-mechanical and box build assembly, wire harness manufacture, and PCB testing and inspection, sourcing components itself or working with customer-supplied parts, and handling prototype, low- and medium-volume orders. Family-owned since its founding in 1976, it serves electric vehicle accessory, medical, lighting and audio/consumer electronics customers.

Tamworth Corporation Ltd

Tamworth Corporation Ltd provides PCB design and surface-mount assembly from Shoeburyness, Southend-on-Sea, Essex, with production focused on the medical device sector. The company works with rigid boards on low- and medium-volume orders, offering circuit design, turn-key assembly, box build and in-house testing to EMC and UL standards. Established in 1994, Tamworth Corporation employs 11 to 50 people.

Rak Printed Circuit Boards

Rak Printed Circuit Boards supplies PCBs from its base near Newport, Essex, offering a 24-hour prototype service, an 8-hour fast-track option and 5-15 working day standard orders alongside a full SMD assembly service and in-house PCB design and layout. The company manufactures single-sided, double-sided plated-through-hole and multilayer boards up to 24 layers, plus flexible boards, with RoHS lead-free finishes, sourced through in-house or external procurement to match client specifications. It offers both turnkey and customer-supplied component sourcing for prototype, low- and medium-volume orders.

Quassia Electronics Ltd

Quassia Electronics specialises in PCB manufacture and design from its site at Wendens Ambo, near Saffron Walden on the Cambridgeshire, Hertfordshire and Essex borders. The company runs surface-mount assembly on rigid boards with automated optical inspection for prototype, low- and medium-volume orders, alongside PCB design and turnkey assembly. Established in 1977 and certified to ISO 9001, it works with multinational customers in aerospace and defence, lighting, medical and telecom, delivering across the UK and internationally.

Pulsar Measurement

Pulsar Measurement provides contract electronics manufacturing from its facility at Earls Colne, near Colchester in Essex, where it has operated for nearly 25 years, taking projects from bare-board population through to full enclosure shipment. Surface-mount and through-hole assembly on rigid boards is supported by hand and wave soldering, automated optical inspection, X-ray inspection and functional testing, with box build, enclosure assembly and packaging, repair and rework, and conformal coating and encapsulation also offered for low- and medium-volume orders. Certified to ISO 9001, ISO 14001, ISO 45001, ATEX and UL, the company supports aerospace and defence, automotive, industrial, medical and telecom customers.

NOTE Prototyping Ltd

NOTE Prototyping, formerly Speed Assembly Services and part of the NOTE Group, specialises in fast-turn PCB prototyping and NPI from its Basildon site, with self-service ordering for one-off builds up to around 100 units. Mycronic SMT and Mirtec AOI equipment support mixed surface-mount and through-hole assembly, including hand soldering and BGA placement, on single- and double-sided rigid boards from single-layer up to 20-layer designs. Components can be supplied turnkey, free-issue or kitted, with dispatch in 7 days for orders under 25 boards and 14 days above that.

Essex has 18 companies listed on EMS Directory UK. Services on file include PCB Assembly (16), Design & Engineering (15), Box Build Assembly (9) and Cable & Wire Assembly (8). Customers span Aerospace and Defence (8), Medical (8) and Industrial (7). The most common certifications are ISO 9001 (12), IPC A-610 (4) and UL (4). Test and inspection methods listed include AOI (8), functional testing (8) and X-ray inspection (3). Of the 18, 11 take prototype orders and 1 lists high-volume production. Company founding dates range from 1977 (Quassia Electronics Ltd) to 2024 (CSI Electronic Manufacturing Services Ltd). Use the filters on this page to narrow by certification, testing, industries and order volume, then shortlist companies and send one enquiry to all of them. Our certification and capability checklist sets out what to ask before you commit. See also England.

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