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Top 50 electronics and semiconductor companies in the United Kingdom

Tamtam tracks 178 electronics and semiconductor companies headquartered in the United Kingdom. This list ranks the 50 largest by number of employees on LinkedIn, led by BAE Systems, Nothing and Arm. Their median headcount is 524. Half of them were founded in 1977 or later. The most common headquarters are London (6), Cambridge (5) and Marlow (2).

πŸ‡¬πŸ‡§ United Kingdom50 companiesUpdated Nov 12, 2026

These electronics and semiconductor companies in the United Kingdom represent a mix of established large groups and mid-sized firms. They are engaged in diverse activities, from defense and aerospace with BAE Systems, to consumer electronics with Nothing, and specialized semiconductor design with Arm. Other companies like Edwards Vacuum provide critical solutions for various industries.

The list reveals a concentration of companies in the broader London area and in Cambridge, highlighting these locations as key hubs for the sector. Companies such as Halma plc and TT Electronics plc focus on safety, environmental monitoring, and specialized electronics for industrial applications, while Renishaw specializes in precision measurement and additive manufacturing.

#CompanyIndustryHeadquarters EmployeesFounded
1
BAE Systemsbaesystems.com

The company provides advanced technology-led defense, aerospace, and security solutions, with a skilled workforce in over 40 countries, focusing on innovation and long-term commitment

Defense and Space Manufacturing πŸ‡¬πŸ‡§ London 55,143 1999
2
Nothingnothing.tech

London-based tech company building smartphones and audio equipment with iconic design and intuitive engineering as an alternative to established industry giants.

Technology, Information and Internet πŸ‡¬πŸ‡§ London 29,964 2020
3
Armarm.com

Designing foundational computing technology enabling advancements in cloud, automotive, IoT, metaverse, and autonomous systems worldwide.

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Cambridge 11,505 n/a
4
Edwards Vacuumedwardsvacuum.com

A global leader in vacuum and abatement solutions for a wide range of industries, enabling innovation and manufacturing processes worldwide

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Burgess Hill 4,477 1919
5
Halma plchalma.com

Group of companies providing life-saving safety, environmental monitoring, and medical technologies to protect people, infrastructure, and improve healthcare quality.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Amersham 3,875 1972
6
TT Electronics plcttelectronics.com

Engineering and manufacturing electronics for medical, automation, aerospace, and defense sectors to enhance safety, health, and sustainability globally.

Manufacturing πŸ‡¬πŸ‡§ Woking 3,059 1812
7
HBK - Hottinger Brüel & Kjærhbkworld.com

Provides comprehensive testing and data analysis solutions in sound, vibration, reliability, durability, propulsion efficiency, and weighing to accelerate product development.

Industrial Machinery Manufacturing πŸ‡¬πŸ‡§ London 2,750 1942
8
Volexvolex.com

Global manufacturing company, specializing in performance-critical applications, power products, cable assemblies, data center power, electric vehicle charging, and consumer electricals.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Basingstoke 2,706 1919
9
Renishawrenishaw.com

Engineering and scientific technology company, specializing in precision measurement, healthcare solutions, and additive manufacturing for diverse global industries.

Automation Machinery Manufacturing πŸ‡¬πŸ‡§ Wotton-under-Edge 2,613 1973
10
Lucy Group Ltdlucygroup.com

International group providing sustainable infrastructure, smart energy distribution, advanced street lighting controls, and responsible property development for eco-friendly living.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Oxford 1,814 1812
11
CSRcsr.com

Innovative technology company developing silicon, software, and services for consumer electronics, focusing on Voice & Music, Connectivity, Bluetooth, Automotive Infotainment, and Location solutions

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Cambridge 1,796 1999
12
Oxford Instruments plcoxinst.com

Design and manufacture advanced tools and systems for research and industry to fabricate, analyze, and manipulate matter at atomic level.

Nanotechnology Research πŸ‡¬πŸ‡§ High Wycombe 1,773 1959
13
Dialog Semiconductorrenesas.com

Provides standard and custom integrated circuits for IoT and Industrial IoT applications, focusing on power efficiency and performance across various markets.

Renewable Energy Semiconductor Manufacturing πŸ‡¬πŸ‡§ Reading 1,500 1986
14
Sony Europesony.com

Leading entertainment, technology, and imaging solutions across Europe, focusing on AI, biotech, software, R&D, design, sales, and customer service.

Entertainment Providers πŸ‡¬πŸ‡§ Weybridge 1,368 n/a
15
Oxford Nanopore Technologiesnanoporetech.com

Innovative biotech company developing portable DNA and RNA sequencing technology for real-time data delivery and scalable analysis in over 100 countries worldwide

Biotechnology Research πŸ‡¬πŸ‡§ Oxford 1,352 n/a
16
Smiths Interconnectsmithsinterconnect.com

Design and manufacture of high-reliability electronic components, microwave, optical, and RF products for aerospace, defense, medical, semiconductor, and industrial markets.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ London 1,090 n/a
17
Mitsubishi Electric Europe BVeurope.mitsubishielectric.com

Manufacture and sales of electrical and electronic products and systems for diverse applications, focusing on green technology contributions worldwide.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Uxbridge 1,037 1969
18
Teledyne e2vteledyne-e2v.com

Develops advanced technology products, services, and solutions for diverse industries like medical, aerospace, and security, focusing on semiconductors, imaging, and radio frequency.

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Chelmsford 1,030 1947
19
Imagination Technologiesimaginationtech.com

Engineering high-performance, power-efficient chip designs for electronic products, with a global presence and talent pool solving complex technology challenges

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Kings Langley 752 1985
20
YAZAKI EUROPE LIMITEDyazaki-europe.com

The company specializes in automotive wiring harnesses and energy equipment, focusing on creating products for a safe and environmentally friendly society

Motor Vehicle Manufacturing πŸ‡¬πŸ‡§ Coventry 744 1929
21
Samsung Electronics UKsamsung.com

A global leader in diverse businesses spanning technology, semiconductors, construction, fashion, finance, and more, dedicated to innovation and global citizenship

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Chertsey 737 n/a
22
Graphcoregraphcore.ai

A company specializing in AI technology with a unique processor designed to accelerate machine learning models and drive breakthroughs in general machine intelligence

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Bristol 697 2016
23
Teledyne Qioptiqteledyne-ade.com

Designs and manufactures photonic products and solutions for various industries, including medical, aerospace, and research, with expertise from multiple integrated companies

Defense and Space Manufacturing πŸ‡¬πŸ‡§ St Asaph 660 n/a
24
Mini-Circuitsminicircuits.com

A global leader in RF, microwave, and millimeter wave technology, providing components for communication networks, national security systems, and cutting-edge technologies

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Brooklyn 636 1968
25
Teknikteknikuk.com

Contract Electronics Manufacturer specializing in Electrical and Electronic Sub-Assemblies, designing and building equipment to individual specifications with BS EN ISO9001 approval

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Winterbourne 524 1993

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26
Huawei Technologies Research & Development (UK) Ltd

The company is a global leader in technology innovation and research, with a focus on driving development in the global innovation value chain

Telecommunications πŸ‡¬πŸ‡§ Cambridge 455 2017
27
MSS International Groupmssinternational.com

Supply and manufacture of electrical transmission, distribution components, power storage units, and services supporting global energy transition and electrification.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ 440 1975
28
Cosworthcosworth.com

A global technology business redefining mobility solutions through propulsion, electronics, software for automotive, aerospace, marine sectors with focus on hybrid, EV, data connectivity, automation technology

Motor Vehicle Manufacturing πŸ‡¬πŸ‡§ Northampton 431 1958
29
IQEiqep.com

Global supplier of advanced semiconductor wafers for leading chip manufacturers, offering a range of products and services for high-tech applications worldwide

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Cardiff 420 1988
30
G&H (Gooch & Housego)gandh.com

A world leader in optical design, testing, and manufacturing, specializing in providing optical systems and components for demanding applications

Industrial Machinery Manufacturing πŸ‡¬πŸ‡§ Ilminster 411 1948
31
Worldmarkccldesign.com

Global manufacturer of labels, components, branding solutions, and security applications for electronics, automotive, and industrial sectors, part of CCL Industries

Printing Services πŸ‡¬πŸ‡§ East Kilbride 394 1979
32
Druckdruck.com

Designs, develops, manufactures high-quality, accurate, reliable pressure sensing devices, instruments, software, and services for critical asset monitoring in challenging environments.

Measuring and Control Instrument Manufacturing πŸ‡¬πŸ‡§ Leicester 393 1972
33
Linksyslinksys.com

A leading provider of reliable and innovative wireless technologies for homes and businesses, delivering fast, secure, and user-friendly WiFi connections

Computer Networking Products πŸ‡¬πŸ‡§ Milton Keynes 392 1988
34
Astute Groupastutegroup.com

Authorized electronics distribution and supply-chain management with global sourcing, technical support, anti-counterfeit testing, and obsolescence management for aerospace and defense.

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Stevenage 386 1989
35
TSLtslproducts.com

Specializing in innovative audio monitoring, control systems, and power management solutions for professionals in broadcast, media, aerospace, defense, and live events industries

Technology, Information and Media πŸ‡¬πŸ‡§ Marlow 385 1986
36
GCTgct.co

A global designer and manufacturer of interconnect products with support centers and production facilities in key regions, committed to customer support and cost-effective manufacturing

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Welwyn Garden City 373 1988
37
Nidec Control Techniquescontroltechniques.com

Leading provider of variable speed drives & power conversion technology for commercial and industrial applications, enhancing productivity with innovative products for demanding applications

Automation Machinery Manufacturing πŸ‡¬πŸ‡§ Newtown 365 1973
38
Rebound Electronicsreboundeu.com

Hybrid Distribution company offering electronic components globally, combining franchised distribution with brokerage for best price, quality, and continuity of supply

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Newbury 354 2003
39
Cheltonchelton.com

Specializing in communication and navigation systems for aerospace and defense, offering antennas, anti-jam GPS, and electronic warfare solutions for diverse terrain

Aviation and Aerospace Component Manufacturing πŸ‡¬πŸ‡§ Marlow 353 1947
40
Luceco Groupluceco.com

Manufacturing and distributing LED lighting products, EV chargers, wiring devices, circuit protection, portable power solutions, and audio-visual accessories for various global industries.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ London 351 1952
41
Gooch & Housegogoochandhousego.com

World-leading manufacturer of precision optical components, light measurement instrumentation, and optical technologies with global sales, manufacturing, and prototyping capabilities

Mechanical Or Industrial Engineering πŸ‡¬πŸ‡§ Ilminster 333 1948
42
Pragmatic Semiconductorpragmaticsemi.com

Development and production of flexible, sustainable semiconductors designed to accelerate innovation and positively impact people and the planet.

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Cambridge 327 2010
43
acdcacdclighting.com

Specialist LED lighting designers and manufacturers transforming the industry with innovative systems, collaborating with top designers on prestigious global projects Visit website for inspiration

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Nelson 320 2004
44
PST is now DwyerOmegaprocesssensing.com

Provider of instruments, analyzers, and sensors for precision measurements in various industries, ensuring product quality, compliance, and cost savings through innovative sensing technologies

Measuring and Control Instrument Manufacturing πŸ‡¬πŸ‡§ Ely 313 2016
45
Aion Siliconaionsilicon.com

Specializing in designing and manufacturing complex digital SoCs and ASICs, this global company offers innovative solutions with high quality and on-time delivery

Semiconductor Manufacturing πŸ‡¬πŸ‡§ London 249 2002
46
STI Limitedsti-limited.com

Specialist partner providing bespoke electronic design, manufacturing, R&D, supply-chain, and capital solutions for high-reliability industries globally.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Hook 248 1989
47
Acal BFiacalbfi.com

A leading provider of advanced solutions for electronic applications, offering a comprehensive range of specialized products, engineering expertise, and in-house capabilities across Europe

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Wokingham 241 n/a
48
QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.qualcomm.com

Provider of cutting-edge technology solutions as part of a global group, specializing in advancing innovations in the field of QUALCOMM technologies

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Cambridge 240 1985
49
Filtronicfiltronic.com

Develops and manufactures high-performance RF, microwave, and mmWave technologies for telecommunications, critical communications, aerospace, defense, and space industries.

Defense and Space Manufacturing πŸ‡¬πŸ‡§ Sedgefield 236 1977
50
Harwinharwin.com

This company designs and manufactures high-reliability interconnect devices and PCB hardware, serving demanding sectors like aerospace, defense, automotive, and medical with a global presence.

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ Portsmouth 228 1952

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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