Custom UK Electronics Manufacturer :: Custom Interconnect Limited

Welcome to CIL

CIL has an unrivalled passion for providing world class Electronics Manufacturing Support, the whole CIL team is available to assist you in making your business count.

Welcome to CIL

CIL has an unrivalled passion for providing the best Electronics Manufacturing Support on offer, with an honest and open attitude to business, the whole CIL team is available to assist you in making your business count.

Welcome to CIL

Electronics Manufacture

For all aspects of Electronics Assembly and product Testing take a look at CIL's extensive offerings for Surface Mount, Conventional, Test & Box Build.

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Rapid Prototyping

If you require rapid prototypes, then discuss your needs with our engineering led Rapid Team, for all your early models and development projects.

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Advanced Technologies

CIL has the largest Semiconductor Packaging production facilities in the UK producing electronics packaging solutions for many product types across all business sectors. Coupled with its advanced packaging design team it gives customers access to a UK based provider

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Design Service

Providing the delivery of design solutions, from in-house advanced technology to larger projects of hardware and software designs using our network of design partners.

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Box & Product Build

Custom Interconnects dedicated Box Build Facility, a specialised production facility that extends well beyond that of just Printed Circuit Boards...

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Advanced Technologies

CIL Brochure

E: sales@cil-uk.co.uk

T: +44 (0)1264 321321 +44 (0)1264 321321

CUSTOM INTERCONNECT TO EXHIBIT AT MICROELECTRONICS UK 2026 - Custom Interconnect is excited to exhibit at Microelectronics UK 2026 on Stand H60, at ExCeL London on 29 and 30 September.

CIL awarded Investors in People - Custom Interconnect Ltd achieves prestigious Investors in People Accreditation Custom Interconnect Ltd (CIL), a leading provider of Outsourced Semiconductor Packaging and Test (OSAT), EMS and full product build solutions, is proud…

Universities of Bristol and Nagoya visit to CIL - Following their visit to University of Bristol on Thursday, REWIRE-IKC Director Martin Kuball and REWIRE academic Saeed Jahdi joined Professor Hiroshi Amano and Professor Manabu Arai from Nagoya University on…

CIL joins EU project OSYRYS to bring hybrid-electric for regional flight closer to reality - What if the future of regional flight was hybrid-electric—and closer than you think? CIL joins a diverse group of 24 EU industrial, research, and academic partners to make it reality …

CIL brings Flip Chip / WLCSP / Wafer / Interposer / BGA solder bumping to the UK for advanced semiconductor packaging - Following further investment in advanced packaging capability at its BP2 OSAT facility, CIL has brought on-line the UK’s first PacTech SB² – Jet solder ball laser reflow system.

CIL has commenced the build out of Stage 3 development at its BP2 OSAT facility in Hampshire UK - Following significant contract wins for its Semiconductor packaging OSAT services and complex PCBA manufacture, CIL has commenced construction of the next stage of the BP2 facility in Hampshire.

CIL wins "Manufacturer of the Year" at the TechWorks Gala Dinner Awards 2025 - Custom Interconnect has been awarded Manufacturing Site of the Year at the TechWorks Awards 2025.

CIL creates the UK's largest Outsourced Semiconductor Packaging and Test (OSAT) - As geopolitical tensions proliferate, relying on Far Eastern semiconductor component imports becomes riskier than ever. Here’s how one UK electronics manufacturer has used advanced technology to mitigate the problem.

Innovate UK Driving the Electric Revolution (DER) Project PE2M completion after 3 years of collaboration -

Custom Interconnect celebrates the successful completion of the Innovate UK DER PE2M project, delivering UK-manufactured SiC power modules to support electric vehicle innovation and future net zero technologies.

CIL wins ELEKTRA Award "Manufacturer of the Year" 2024 - The ELEKTRA Awards 2024 were presented at a Gala Dinner at the IET London, Savoy Place on Tuesday 10th December.