This selection of Swiss companies in the electronics and semiconductor sectors includes established firms and some large groups. Aptiv, with 180,000 employees, specializes in software-defined vehicles, while Hitachi Energy provides advanced power grid technologies. STMicroelectronics is a global leader in semiconductors, and Swatch Group manufactures watches and jewelry. Endress+Hauser Group leads in measurement and automation technology, and VAT GROUP develops high-end vacuum valves.
A notable pattern among these companies is their diverse focus within the broader electronics industry, ranging from automotive and energy solutions to luxury goods and industrial automation. Many of these firms, such as STMicroelectronics (founded 1987) and Endress+Hauser Group (founded 1953), have a long history, indicating a mature industrial base in Switzerland.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 180,000 | ||||
| 2 |
Hitachi Energyhitachienergy.com
Global leader in electrification providing advanced power grid technologies and digital solutions to support sustainable energy and decarbonization efforts. |
36,864 | |||
| 3 |
STMicroelectronicsst.com
Global leader in semiconductors, providing intelligent, energy-efficient products and solutions for smarter driving, factories, cities, homes, mobile, and IoT devices. |
35,723 | |||
| 4 |
Swatch Groupswatchgroup.com
Manufacture and sale of watches, jewelry, watch movements, components, electronic systems, and sports event timing services worldwide. |
32,000 | |||
| 5 |
Endress+Hauser Groupendress.com
Global leader in measurement and automation technology for process and laboratory applications, helping customers improve products, work economically, and protect people and environment. |
10,460 | |||
| 6 |
ETA SA Manufacture Horlogère Suisseeta.ch
A leading Swiss watchmaking manufacturer with a rich history dating back to 1793, known for creating high-quality, reliable Swiss Made quartz and mechanical movements |
2,286 | |||
| 7 |
VAT GROUPvatgroup.com
Global leader in developing and supplying high-end vacuum valves for advanced production processes, offering original spare parts, maintenance, and technical support worldwide |
2,014 | |||
| 8 |
Beyond Gravitybeyondgravity.com
It develops and manufactures satellite and launch vehicle products, combining innovation with experience to advance exploration and technology in space. |
1,520 | |||
| 9 |
Cicor Groupcicor.com
It provides full-cycle electronic solutions including research, development, manufacturing, and supply chain management for various industries like medical and aerospace. |
1,470 | |||
| 10 |
Kistler Groupkistler.com
Global leader in dynamic pressure, force, torque, and acceleration measurement technology, providing modular solutions to optimize products and processes for industry and research. |
1,396 | |||
| 11 |
u-bloxu-blox.com
A global provider of semiconductor chips, modules, and IoT services enabling innovation for automotive and IoT applications, focusing on precise, smart, sustainable solutions |
1,348 | |||
| 12 |
maxonmaxongroup.com
The company develops high precision electric drive systems, combining motors, gearheads, sensors, and controllers for industries like medical technology, industrial automation, and aerospace |
1,182 | |||
| 13 |
Baumer Groupbaumer.com
Development and production of high performing sensors and sensor systems for industrial automation with smart functionalities and digitalized production solutions. |
1,141 | |||
| 14 |
INFICONinficon.com
It provides innovative instrumentation and sensor technologies for gas leak detection, semiconductor fabrication, and various industrial applications, enhancing productivity and quality. |
1,116 | |||
| 15 | 1,106 | ||||
| 16 |
Datamarsdatamars.com
Global provider of RFID and data technology solutions for livestock, pets, and textiles to enhance sustainable productivity and quality of life. |
865 | |||
| 17 |
Sécheron Hasler Group
Global supplier of electrical safety components and solutions, traction power systems for railways, and renewable energy solutions for industrial systems |
838 | |||
| 18 |
Sensirionsensirion.com
Innovative sensor solution provider using patented technology for various industries like medical, automotive, and HVAC, aiming for health, comfort, and energy efficiency improvements |
817 | |||
| 19 |
LEMO GROUPlemo.com
Design and manufacture high-performance interconnection solutions for diverse industries including medical, aerospace, robotics, communication, transport, and energy sectors worldwide. |
764 | |||
| 20 | 743 | ||||
| 21 |
Elma Electronicelma.com
A leader in open standards based backplanes, enclosures, and system integration with a focus on modular solutions for defense and industrial applications |
611 | |||
| 22 |
Enicsgpv-group.com
Global EMS partner offering electronics manufacturing services, mechatronics, and design solutions to customers worldwide, with focus on trust, quality, and customer satisfaction |
611 | |||
| 23 |
Samsung Switzerlandsamsung.com
A leading electronics company pushing the boundaries of technology with innovative products such as smartphones, TVs, monitors, and appliances Join us in shaping the future! #DoWhatYouCant |
605 | |||
| 24 |
SCHURTER Groupschurter.com
Global Swiss technology leader providing components for circuit protection, connectors, switches, EMC products, input systems, and overall solutions for electronics industry worldwide |
525 | |||
| 25 |
Evatec AGevatecnet.com
Evatec specializes in thin film deposition and etch systems for manufacturing high-performance optical, optoelectronic, and semiconductor devices with advanced process control technologies |
499 | |||
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 |
duagonduagon.com
Develops embedded electronic hardware, software, and services for system-critical applications in the rail and medical markets, focusing on safety and reliability. |
492 | |||
| 27 | 434 | ||||
| 28 |
Acrotec Groupacrotec.ch
Manufacture high-precision components and provide specialized services for watchmaking, Medtech, automotive, aerospace, aeronautics, and electronics industries. |
429 | |||
| 29 |
Fischer Connectorsfischerconnectors.com
A global provider of tailored electronic solutions and connectors for demanding environments, offering high-performance connectivity solutions for data transfer and management |
390 | |||
| 30 |
PRECI-DIPprecidip.com
Design and production of precise interconnect technology solutions for industrial, medical, defense, aviation, and automotive markets with custom projects. |
347 | |||
| 31 |
Landis+Gyr EMEAlandisgyr.eu
Provision of advanced metering, network intelligence, and digital solutions to support electricity, gas, and water utilities across Europe, Middle East, and Africa. |
335 | |||
| 32 |
Swissbit AGswissbit.com
A provider of embedded memory and storage solutions for industries like Industrial, Automotive, and Security, ensuring data integrity and security |
281 | |||
| 33 |
EAO Automotive GmbH & Co KGeao.com
Leading manufacturer of high-quality industrial switches, complete custom HMI panels and interface systems, and specialised automotive switch systems since 1947. |
262 | |||
| 34 |
Comet Plasma Control Technologiespct.comet.tech
A global leader in RF technology, specializing in high-tech products for semiconductor manufacturers to improve performance and efficiency |
252 | |||
| 35 |
TRUMPF Schweiz AGtrumpf.com
The company is a global leader in developing production technology, specializing in tool machines, lasers, software solutions, and industrial electronics innovations |
243 | |||
| 36 |
SwissOpticswissoptic.com
Specializing in OEM optics, SwissOptic AG develops, manufactures, and assembles key components and modules for customers worldwide, with expertise in high-end optics |
228 | |||
| 37 |
AMP Incorporated, now TE Connectivityte.com
Global technology leader creating connectivity and sensor solutions for various industries to enable advancements in transportation, industry, medical, energy, and more |
226 | |||
| 38 |
SWISSto12swissto12.com
A leading manufacturer of advanced RF products, satellite payloads, and systems, specializing in 3D printing technology for lightweight, high-performance telecommunications and surveillance solutions |
224 | |||
| 39 | 222 | ||||
| 40 | 222 | ||||
| 41 |
Huba Control AGhubacontrol.com
Development and production of high-quality pressure switches, pressure and flow sensors contributing to energy conservation and emission reduction. |
204 | |||
| 42 |
Kandou AIkandou.com
A fabless semiconductor company founded in 2011, specializing in high-speed, energy efficient chip-to-chip link solutions to enable better-connected, smaller, and more cost-effective devices |
191 | |||
| 43 |
Contrinexcontrinex.com
A multinational group specializing in top-quality sensing equipment for industrial applications, known for innovative products like miniature sensors and high-pressure resistant sensors |
186 | |||
| 44 |
Toradextoradex.com
Specializing in embedded computing technology, this company offers Arm®-based System on Modules and Customized SBCs with direct premium support and global presence |
175 | |||
| 45 |
Measurement Specialties, Inc, now TE Connectivityte.com
Global technology leader providing essential connectivity and sensor solutions, collaborating with engineers to create intelligent, high-performing products for diverse industries worldwide |
172 | |||
| 46 | 168 | ||||
| 47 |
Deutsch, now TE Connectivityte.com
Connectors, sensors, and related solutions for transportation, industrial applications, medical technology, energy, data communications, and smart home technology. |
166 | |||
| 48 | 161 | ||||
| 49 |
ERNI Electronicste.com
Providing advanced connector solutions and comprehensive support for industrial automation, automotive, medical, and measurement technology sectors worldwide. |
160 | |||
| 50 |
SPT Group - Small Precision Toolsspt.net
Global leader in manufacturing high-precision technical components and micro-miniature tools, specializing in injection-molded advanced ceramics for various industries Custom-made components available |
155 | |||
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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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