This selection of large electronics and semiconductor companies in England includes established players and newer firms. BAE Systems provides defense and security solutions, while Arm designs foundational computing technology. Edwards Vacuum specializes in vacuum and abatement solutions, and Nothing creates smartphones and audio equipment. Halma plc offers safety, environmental, and medical technologies, and TT Electronics engineers electronics for various sectors.
The companies listed show a concentration in London for headquarters, alongside other locations such as Cambridge, Oxford, and Woking. The industries represented range from defense and space manufacturing to semiconductor manufacturing, and appliances, electrical, and electronics manufacturing, indicating a broad scope within the electronics sector.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 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 |
55,143 | |||
| 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. |
29,964 | |||
| 3 | 11,505 | ||||
| 4 |
Edwards Vacuumedwardsvacuum.com
A global leader in vacuum and abatement solutions for a wide range of industries, enabling innovation and manufacturing processes worldwide |
4,477 | |||
| 5 | 3,875 | ||||
| 6 |
TT Electronics plcttelectronics.com
Engineering and manufacturing electronics for medical, automation, aerospace, and defense sectors to enhance safety, health, and sustainability globally. |
3,059 | |||
| 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. |
2,750 | |||
| 8 | 2,706 | ||||
| 9 |
Renishawrenishaw.com
Engineering and scientific technology company, specializing in precision measurement, healthcare solutions, and additive manufacturing for diverse global industries. |
2,613 | |||
| 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. |
1,814 | |||
| 11 | 1,796 | ||||
| 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. |
1,773 | |||
| 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. |
1,500 | |||
| 14 |
Sony Europesony.com
Leading entertainment, technology, and imaging solutions across Europe, focusing on AI, biotech, software, R&D, design, sales, and customer service. |
1,368 | |||
| 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 |
1,352 | |||
| 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. |
1,090 | |||
| 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. |
1,037 | |||
| 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. |
1,030 | |||
| 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 |
752 | |||
| 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 |
744 | |||
| 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 |
737 | |||
| 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 |
697 | |||
| 23 |
Teknikteknikuk.com
Contract Electronics Manufacturer specializing in Electrical and Electronic Sub-Assemblies, designing and building equipment to individual specifications with BS EN ISO9001 approval |
524 | |||
| 24 |
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 |
455 | |||
| 25 |
MSS International Groupmssinternational.com
Supply and manufacture of electrical transmission, distribution components, power storage units, and services supporting global energy transition and electrification. |
440 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
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 |
431 | |||
| 27 |
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 |
411 | |||
| 28 | 393 | ||||
| 29 |
Linksyslinksys.com
A leading provider of reliable and innovative wireless technologies for homes and businesses, delivering fast, secure, and user-friendly WiFi connections |
392 | |||
| 30 |
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. |
386 | |||
| 31 |
TSLtslproducts.com
Specializing in innovative audio monitoring, control systems, and power management solutions for professionals in broadcast, media, aerospace, defense, and live events industries |
385 | |||
| 32 | 373 | ||||
| 33 |
Rebound Electronicsreboundeu.com
Hybrid Distribution company offering electronic components globally, combining franchised distribution with brokerage for best price, quality, and continuity of supply |
354 | |||
| 34 |
Cheltonchelton.com
Specializing in communication and navigation systems for aerospace and defense, offering antennas, anti-jam GPS, and electronic warfare solutions for diverse terrain |
353 | |||
| 35 |
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. |
351 | |||
| 36 |
Gooch & Housegogoochandhousego.com
World-leading manufacturer of precision optical components, light measurement instrumentation, and optical technologies with global sales, manufacturing, and prototyping capabilities |
333 | |||
| 37 |
Pragmatic Semiconductorpragmaticsemi.com
Development and production of flexible, sustainable semiconductors designed to accelerate innovation and positively impact people and the planet. |
327 | |||
| 38 |
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 |
320 | |||
| 39 |
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 |
313 | |||
| 40 |
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 |
249 | |||
| 41 |
STI Limitedsti-limited.com
Specialist partner providing bespoke electronic design, manufacturing, R&D, supply-chain, and capital solutions for high-reliability industries globally. |
248 | |||
| 42 |
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 |
241 | |||
| 43 |
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 |
240 | |||
| 44 |
Filtronicfiltronic.com
Develops and manufactures high-performance RF, microwave, and mmWave technologies for telecommunications, critical communications, aerospace, defense, and space industries. |
236 | |||
| 45 |
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. |
228 | |||
| 46 |
Riverlaneriverlane.com
Develops quantum error correction tools and technology, fixing data errors on quantum computers, accelerating the quantum ecosystem by collaborating with manufacturers and research centers. |
207 | |||
| 47 |
Texecom Ltd.texe.com
Providing innovative electronic security products and services to protect people and properties globally with connected, intelligent solutions for current and future security challenges |
191 | |||
| 48 |
HUBER+SUHNER Polatispolatis.com
Delivers lowest loss optical circuit switching solutions for dynamic remote fiber-layer provisioning, protection, monitoring, reconfiguration and test for various networks. |
188 | |||
| 49 |
Pico Technologypicotech.com
Global provider of high-performance diagnostic equipment, oscilloscopes, signal generators, and data loggers for various industries, enabling innovation and precise measurements worldwide |
184 | |||
| 50 |
ETL Systemsetlsystems.com
Designs, manufactures, and supplies RF equipment for satellite communication infrastructure, offering solutions for uplink and downlink chains, instrumentation, and high-power amplifiers. |
176 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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.
More company lists in England
- The largest companies in England 32,641
- Retail chains in England 2,917
- Manufacturers in England 1,794
- Companies with in-house R&D in England 1,703
- Retail companies in England 1,415
- Hotel and hospitality groups in England 1,273
- Education providers in England 1,081
- Hardware manufacturers in England 1,067
- Wellness and Fitness Services companies in England 1,032
- Critical infrastructure operators in England 1,029
- Hospitality companies in England 1,025
- Family-owned companies in England 1,014
- Distributors and wholesalers in England 938
- Healthcare providers in England 810
- Insurance companies in England 699
- Consumer goods companies in England 671
- Construction companies in England 667
- Hospitals and Health Care companies in England 649
- Public sector organisations in England 638
- Food and beverage companies in England 635
- Food and Beverage Services companies in England 606
- Food and Beverage Manufacturing companies in England 582
- Corporate groups and holding companies in England 578
- Restaurants companies in England 506