These manufacturing companies in Gyeonggi-do are primarily large firms, many of which are subsidiaries of the Samsung Group. They are concentrated in electronics, automotive parts, and specialized industrial equipment. For example, Samsung Electronics is a global technology leader in TVs, smartphones, and appliances, while HL Mando develops cutting-edge automotive parts. LS Cable & System provides global cable solutions.
Several companies are involved in motor vehicle manufacturing, such as Hankook Tire, which manufactures and supplies high-quality tires globally, and HYUNDAI TRANSYS, a global automotive parts supplier specializing in powertrain and seating components. The presence of multiple Samsung entities suggests a strong regional focus on electronic manufacturing and related industries.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Samsung Electronicssamsung.com
A global technology leader, constantly innovating in TVs, smartphones, wearables, appliances, medical devices, and more Embracing diversity and creativity for growth |
287,000 | |||
| 2 |
Samsung Mobilesamsung.com
This company specializes in providing secure and highly productive mobile solutions for enterprises, focusing on Android security and productivity on Samsung Galaxy devices worldwide |
19,596 | |||
| 3 |
Samsung SDIsamsungsdi.com
Development and production of innovative technology products with cutting-edge features, focusing on creativity and continuous improvement since 1970. |
4,080 | |||
| 4 |
HL Mandohlmando.com
A leading automotive parts company focused on developing cutting-edge technology and quality parts for safe vehicles on a global scale |
3,561 | |||
| 5 |
Samsung Displaysamsungdisplay.com
Global leader providing cutting-edge display solutions with OLED and QD-OLED technology for smartphones, TVs, laptops, monitors, smartwatches, VRs, game consoles, and automotive applications. |
3,443 | |||
| 6 |
Hankook Tirehankooktire.com
Manufacture and supply high-quality tires globally, focusing on innovation, premium brands, and sustainable ESG management practices. |
2,083 | |||
| 7 |
LS Cable & Systemlscns.co.kr
A global cable solutions provider offering state-of-the-art products, engineering services, and global production capacity to power authorities and carriers worldwide |
1,630 | |||
| 8 |
HYUNDAI TRANSYShyundai-transys.com
A global automotive parts supplier specializing in powertrain and seating components for Hyundai and Kia Motors, with operations in Asia, Europe, and the Americas |
1,566 | |||
| 9 |
Hyundai Rotemhyundai-rotem.co.kr
A diversified company within Hyundai Motor Group providing innovative and sustainable mobility solutions in the railway, defense, and plant & machinery systems sectors globally |
1,442 | |||
| 10 |
삼성중공업samsungshi.com
A global leader in shipbuilding and offshore EPC projects, specializing in high-tech vessels like drillships, LNG carriers, FPSOs, and Arctic tankers |
1,423 | |||
| 11 |
LIG Defense&Aerospaceligdefenseaerospace.com
The company develops and produces advanced precision electronic systems, including missile, radar, avionics, communication systems, and more for military and commercial applications globally |
1,144 | |||
| 12 |
LS Automotivelsautomotive.com
A global vehicle components company with world-class quality, offering career opportunities, focused on customer satisfaction, sustainability, and innovation in automotive technologies |
938 | |||
| 13 |
LS ELECTRICls-electric.com
This company provides power systems and automated solutions for efficiency, sustainability, and clean energy, focusing on smart factories and energy solutions |
881 | |||
| 14 |
ANY Corporationany21.co.kr
Specialized manufacturer in Korea of medical and industrial monitors, offering OEM and ODM services to top companies worldwide ISO 9001 certified for quality assurance |
822 | |||
| 15 |
GC Biopharma (GC녹십자)gcbiopharma.com
Biopharmaceutical company based in South Korea specializing in protein therapeutics and vaccines, with a focus on quality healthcare solutions for over 50 years |
660 | |||
| 16 |
SOLUMsolum-group.com
A global company specializing in power suppliers, tuners, and electronic shelf labels with locations in South Korea, USA, and Germany |
585 | |||
| 17 |
KGMkg-mobility.com
A leading Korean automotive manufacturer known for innovative SUVs and luxury sedans, with technical cooperation for competitive SUV production |
505 | |||
| 18 |
SK chemicalsskchemicals.com
The company manufactures chemical products including PETG and PET resins for various industries, as well as life science products like anti-cancer agents and vaccines |
491 | |||
| 19 |
HD Construction Equipmenthd-ce.com
A leading manufacturer of construction equipment, engines, and utility equipment, supplying a range of products for various industries globally |
469 | |||
| 20 |
HD Hyundai Construction Equipmenthd-hyundaice.com
Specialized manufacturer of construction equipment including excavators, wheel loaders, backhoe loaders, and skid loaders for construction and material handling |
416 | |||
| 21 |
Rayraymedical.com
A global leader in dental imaging solutions, Ray Co, Ltd specializes in CBCT technology and digital dentistry products for global markets |
378 | |||
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. | |||||
| 22 |
Hyundai Kefico Corporation (현대케피코)hyundai-kefico.com
The company designs, verifies, calibrates, and manufactures advanced electronic control systems for vehicles, with a focus on safety and efficiency |
374 | |||
| 23 |
Samsung Foundrysamsung.com
Specializing in advanced process and design technologies, Samsung Foundry offers a range of foundry capabilities, design services, and intellectual property solutions for high-volume manufacturing projects |
372 | |||
| 24 |
HD Korea Shipbuilding & Offshore Engineering Co., Ltd. (HD KSOE)hdksoe.co.kr
A shipbuilding business cluster focused on becoming a technology-oriented company with world-class R&D and engineering capabilities in the marine mobility industry |
367 | |||
| 25 |
KAON GROUPkaongroup.com
Development and manufacturing of digital connectivity devices and services for PayTV and Broadband industries, offering integrated end-to-end solutions worldwide. |
366 | |||
| 26 |
SD BIOSENSOR INCsdbiosensor.com
The company is dedicated to enhancing human health through the creation of groundbreaking products, prioritizing sustainable growth and community well-being |
365 | |||
| 27 | 363 | ||||
| 28 |
Intellian Technologiesintelliantech.com
A global leader in satellite antenna systems, providing connectivity solutions for various industries, focusing on simplicity, innovation, and customer satisfaction |
348 | |||
| 29 |
HD Hyundai Electric Co., Ltd.hd-hyundaielectric.com
A global provider in heavy electrical machinery, transitioning to digital solutions for the evolving power market with focus on ICT convergence and smart factory initiatives |
342 | |||
| 30 |
LS Mtronlsmtron.com
The company operates in machinery and components sectors, producing tractors, injection molding systems, track shoes for battle vehicles, and electronic components |
338 | |||
| 31 |
MAYmay-display.com
Specializing in manufacturing and designing micro display panels, optic engines, and other electronic products, offering a one-stop total solution for clients |
338 | |||
| 32 |
HD Hyundaihd-hyundai.com
Global heavy industries company providing innovative solutions in shipbuilding, marine engineering, oil refining, petrochemicals, and energy management through its three core businesses |
336 | |||
| 33 |
Samjin Co., Ltdsamjin.com
A global leader in smart control technology for the connected home, offering innovative solutions for controlling entertainment devices and home systems |
321 | |||
| 34 |
Huons Globalhuonsglobal.com
A leading healthcare group with a focus on pharmaceuticals, medical devices, health functional foods, and ESG sustainability practices for a better future |
308 | |||
| 35 | 283 | ||||
| 36 | 240 | ||||
| 37 |
HK inno-ninno-n.com
A leading pharmaceutical firm established in 1984, specializing in prescription drugs, active pharmaceutical ingredients, health supplements, and beauty products Committed to innovation and global growth |
213 | |||
| 38 | 182 | ||||
| 39 |
Global ZEUS (ZEUS Co., Ltd.)globalzeus.com
The company provides high-quality solutions for the Semiconductor, Automation, LCD, LED, renewable energy, and IT industries through innovative products and exceptional customer support |
44 | |||
| 40 |
Bersanobersano.it
Cultivating own grapes, overseeing production from vineyard to bottle, and safeguarding historic estates and museums, this producer brings elegant Piedmontese wines to the world. |
39 | |||
| 41 |
XAVISxavisxray.com
Specializing in automated X-ray detection equipment, food/medicine/packaging testing devices, and automation solutions for electronic and machine product manufacturing processes with a focus on quality control |
33 | |||
| 42 |
EQ GLOBAL Inc.eq-global.co.kr
Global leader in power solutions, specializing in semiconductor and FPD manufacturing equipment development, maintenance, and solutions on a worldwide scale |
27 | |||
| 43 |
FTC Koreaftckorea.com
The company specializes in developing various precision chemical products such as catalysts, surfactants, additives for coatings, resins, flow control agents, and raw materials for cosmetics |
21 | |||
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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 Gyeonggi
- The largest companies in Gyeonggi 147
- Companies with in-house R&D in Gyeonggi 56
- Multinational companies in Gyeonggi 55
- Hardware manufacturers in Gyeonggi 31
- IT Services and IT Consulting companies in Gyeonggi 31
- Companies with a mobile app in Gyeonggi 30
- Publicly traded companies in Gyeonggi 26
The same list elsewhere in South Korea
The same list elsewhere
- Manufacturers in the world 39,579
- Manufacturers in Asia 6,095