# Hardware manufacturers headquartered in Seoul

Tamtam tracks 42 hardware manufacturers headquartered in Seoul. This list ranks the 30 largest by number of employees on LinkedIn, led by LG Electronics, Doosan and Hyundai MOBIS. Their median headcount is 801. Half of them were founded in 1989 or later.

These Seoul-based companies are primarily large hardware manufacturers, with a strong focus on electronics, automotive components, and industrial machinery. Key players include LG Electronics, which innovates in home appliances and digital signage; Doosan, specializing in power plants and construction equipment; Hyundai MOBIS, a supplier of automotive parts and future mobility solutions; and LG Energy Solution, a leader in EV batteries. Many of these firms are established conglomerates with diverse portfolios.

A notable pattern among these companies is their specialization in advanced manufacturing. Several entities, such as LG Display and LG Innotek, are dedicated to display technologies and electronic components. The presence of multiple automotive-related manufacturers like Kia Worldwide and Genesis highlights Seoul's role in the global vehicle industry, particularly in electric and luxury segments.

🇰🇷 Seoul · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [LG Electronics](https://www.tamtam.ai/c/lg-electronics) (lg.com)<br>This company provides products and services aimed at improving lives through innovation in home appliances, electronics, digital signage, and more | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Seoul | 64,886 |  |
| 2 | [Doosan](https://www.tamtam.ai/c/doosan) (doosan.com)<br>A global company specializing in building power plants, industrial facilities, machine tools, engines, bridges, construction equipment, and consumer products | Industrial Machinery Manufacturing | 🇰🇷 Seoul | 42,000 | 1896 |
| 3 | [Hyundai MOBIS](https://www.tamtam.ai/c/hyundai-mobis) (mobis.com)<br>Specializing in automotive technology, we are a leading supplier of parts worldwide, with a focus on software and system solutions for future mobility | Motor Vehicle Manufacturing | 🇰🇷 Seoul | 8,509 | 1977 |
| 4 | [LG Energy Solution](https://www.tamtam.ai/c/lg-energy-solution) (lgensol.com)<br>A leading company in eco-friendly energy solutions, specializing in distinctive materials and next-generation batteries for EVs and energy storage systems | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Seoul | 7,463 |  |
| 5 | [Hanwha Group](https://www.tamtam.ai/c/hanwha-group) (hanwha.com)<br>Global diversified business group specializing in energy, aerospace, finance, retail, and services with a strong focus on sustainability and innovation. | Chemical Manufacturing | 🇰🇷 Seoul | 7,341 |  |
| 6 | [LG Display](https://www.tamtam.ai/c/lg-display) (lgdisplay.com)<br>Manufacturing display panels for TVs, computers, automobiles, tablets, and mobile devices in facilities across Korea, China, and Vietnam. | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Seoul | 6,139 | 1987 |
| 7 | [LG Innotek](https://www.tamtam.ai/c/lg-innotek) (lginnotek.com)<br>A global materials and components company innovating for various industries with products like camera modules, display substrates, semiconductor packages, and Industry 40 technologies | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Seoul | 3,387 | 1970 |
| 8 | [Kia Worldwide](https://www.tamtam.ai/c/kia-worldwide) (worldwide.kia.com)<br>The company believes movement inspires ideas and creates sustainable mobility solutions, products, stores, and services to free up time for activities | Motor Vehicle Manufacturing | 🇰🇷 Seoul | 2,778 |  |
| 9 | [Hyosung Corporation](https://www.tamtam.ai/c/hyosung-corporation) (hyosung.com)<br>An innovative conglomerate focused on developing materials, parts, and equipment for safer vehicles, sustainable electricity, functional clothing, and customer well-being | International Trade and Development | 🇰🇷 Seoul | 2,571 | 1966 |
| 10 | [Hanwha Systems](https://www.tamtam.ai/c/hanwha-systems) (hanwhasystems.com)<br>Global company based in South Korea providing defense electronics, ICT solutions, and cutting-edge technology such as air taxis and satellite communication antennas | Aviation and Aerospace Component Manufacturing | 🇰🇷 Seoul | 1,375 | 1978 |
| 11 | [Genesis](https://www.tamtam.ai/c/genesis-seoul) (genesis.com)<br>Genesis is a global luxury automotive brand focusing on high-performance, design, safety, and innovation while leading the way towards a sustainable future with electrification | Motor Vehicle Manufacturing | 🇰🇷 Seoul | 1,363 |  |
| 12 | [SK On](https://www.tamtam.ai/c/sk-on) (eng.sk-on.com)<br>A global leader in electric vehicle battery development and solutions, offering safe, high-performing products and comprehensive services for sustainable battery lifecycle | Manufacturing | 🇰🇷 Seoul | 1,224 | 2021 |
| 13 | [Osstem](https://www.tamtam.ai/c/osstem) (osstem.com)<br>A leading dental implant company in Korea, pioneering the market, offering comprehensive dental solutions globally to become the top dental industry leader | Medical Equipment Manufacturing | 🇰🇷 Seoul | 1,043 | 1997 |
| 14 | [CERAGEM](https://www.tamtam.ai/c/ceragem) (ceragem-siegburg.de)<br>A global home healthcare company providing innovative products and services for health and well-being | Wellness and Fitness Services | 🇰🇷 Seoul | 868 | 1998 |
| 15 | [LG Vehicle Solution Global](https://www.tamtam.ai/c/lg-vehicle-solution-global) (lg.com)<br>A company specializing in commercializing environmentally responsible automotive components and core solutions based on proprietary technologies for global car manufacturers | Motor Vehicle Manufacturing | 🇰🇷 Seoul | 801 | 2013 |
| 16 | [Hanwha Aerospace](https://www.tamtam.ai/c/hanwha-aerospace)<br>Specializing in land defense systems, the company's division focuses on developing and providing innovative solutions for military applications | Defense and Space Manufacturing | 🇰🇷 Seoul | 657 | 1977 |
| 17 | [코웨이(주)](https://www.tamtam.ai/c/company-10088502) (coway.com)<br>Leading South Korean environmental home appliance company offering water purifiers, air purifiers, bidets, air conditioners, and more for a healthier and happier lifestyle since 1989 | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Seoul | 561 | 1989 |
| 18 | [LG HVAC Solutions Global](https://www.tamtam.ai/c/lg-hvac-solutions-global) (lg.com)<br>The company specializes in providing optimized HVAC solutions for various business environments, focusing on comfort, efficiency, and sustainability through innovative technology | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Seoul | 559 |  |
| 19 | [InBody](https://www.tamtam.ai/c/inbody) (inbody.com)<br>InBody creates medical-grade body composition analyzers to help professionals and consumers track body composition accurately for health and wellness goals | Medical Equipment Manufacturing | 🇰🇷 Seoul | 506 | 1996 |
| 20 | [Seegene Inc.](https://www.tamtam.ai/c/seegene-inc) (seegene.com)<br>A global leader in molecular diagnostics, developing innovative tests and equipment to improve early diagnosis of ailments and quality of life worldwide | Biotechnology Research | 🇰🇷 Seoul | 504 | 2000 |
| 21 | [FADU](https://www.tamtam.ai/c/fadu) (fadu.io)<br>FADU is a fabless start-up focused on advancing Flash storage devices for enterprise data centers, offering low power, high performance solutions | Semiconductor Manufacturing | 🇰🇷 Seoul | 495 | 2015 |
| 22 | [한화에어로스페이스](https://www.tamtam.ai/c/company-90750185) (hanwhaaerospace.com)<br>This is the official LinkedIn account of a company specializing in aerospace and defense technologies | Defense and Space Manufacturing | 🇰🇷 Seoul | 489 | 1977 |
| 23 | [ILJIN Electric Co., Ltd.](https://www.tamtam.ai/c/iljin-electric-co-ltd) (iljinelectric.com)<br>A Korea-based company that specializes in manufacturing high voltage XLPE cables, transformers, GIS, and ESS systems for utility customers worldwide | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Seoul | 455 | 1968 |
| 24 | [Bluebird, Inc.](https://www.tamtam.ai/c/bluebird-inc) (bluebirdcorp.com)<br>Global top 3 high-end mobile computer manufacturer offering industrial handheld computers, rugged tablets, and mobile POS devices worldwide with innovative features | IT Services and IT Consulting | 🇰🇷 Seoul | 375 | 1995 |
| 25 | [MEDIT](https://www.tamtam.ai/c/medit) (medit.com)<br>Global provider of innovative 3D intraoral scanners and digital dentistry platform compatible with both Windows and Apple Mac, driving change in the dental technology industry | Medical Equipment Manufacturing | 🇰🇷 Seoul | 375 | 2000 |
| 26 | [경동나비엔](https://www.tamtam.ai/c/company-81868903) (kdnavien.co.kr)<br>Creating a pleasant living environment by offering clean ventilation systems, condensing boilers, hot water mats, and smart home systems | Boilers, Tanks, and Shipping Container Manufacturing | 🇰🇷 Seoul | 345 |  |
| 27 | [Hanwha Solutions Corporation](https://www.tamtam.ai/c/hanwha-solutions-corporation) (hanwhasolutions.com)<br>A company specializing in smart energy solutions, customer-focused materials, and green hydrogen, aiming to lead in sustainable global growth for a better future | Renewable Energy Semiconductor Manufacturing | 🇰🇷 Seoul | 321 | 1965 |
| 28 | [Telechips, Inc.](https://www.tamtam.ai/c/telechips-inc) (telechips.com)<br>A leader in semiconductor technology, specializing in Automotive Infotainment and STB, offering high-security, power-efficient solutions with global presence and innovative products | Semiconductor Manufacturing | 🇰🇷 Seoul | 318 | 1999 |
| 29 | [Rebellions](https://www.tamtam.ai/c/rebellions) (rebellions.ai)<br>Specializing in enabling accelerated generative AI at scale through innovative technology solutions | Semiconductor Manufacturing | 🇰🇷 Seoul | 315 | 2020 |
| 30 | [TYM](https://www.tamtam.ai/c/tym) (tym.world)<br>A leading agricultural equipment manufacturer in Korea, headquartered in Seoul, specializing in manufacturing a wide range of agricultural machinery and equipment | Agriculture, Construction, Mining Machinery Manufacturing | 🇰🇷 Seoul | 240 | 1951 |

## 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 Seoul

- [The largest companies in Seoul](https://www.tamtam.ai/l/largest-companies-seoul) (418)
- [Multinational companies in Seoul](https://www.tamtam.ai/l/multinational-companies-seoul) (150)
- [Companies with in-house R&D in Seoul](https://www.tamtam.ai/l/r-and-d-companies-seoul) (88)
- [Manufacturers in Seoul](https://www.tamtam.ai/l/manufacturers-seoul) (70)
- [Companies with a mobile app in Seoul](https://www.tamtam.ai/l/companies-with-mobile-app-seoul) (62)
- [Publicly traded companies in Seoul](https://www.tamtam.ai/l/publicly-traded-companies-seoul) (61)
- [Corporate groups and holding companies in Seoul](https://www.tamtam.ai/l/holding-companies-seoul) (59)
- [IT Services and IT Consulting companies in Seoul](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-seoul) (57)
- [Financial services firms in Seoul](https://www.tamtam.ai/l/financial-services-firms-seoul) (49)
- [Retail chains in Seoul](https://www.tamtam.ai/l/retail-chains-seoul) (39)
- [Critical infrastructure operators in Seoul](https://www.tamtam.ai/l/critical-infrastructure-operators-seoul) (36)
- [Education providers in Seoul](https://www.tamtam.ai/l/education-companies-seoul) (30)
- [Financial Services companies in Seoul](https://www.tamtam.ai/l/financial-services-companies-seoul) (28)
- [AI companies in Seoul](https://www.tamtam.ai/l/ai-companies-seoul) (26)

## The same list elsewhere in South Korea

- [Hardware manufacturers in South Korea](https://www.tamtam.ai/l/hardware-companies-south-korea) (98)
- [Hardware manufacturers in Gyeonggi](https://www.tamtam.ai/l/hardware-companies-gyeonggi) (31)

## The same list elsewhere

- [Hardware manufacturers in the world](https://www.tamtam.ai/l/hardware-companies-in-the-world) (20,159)
- [Hardware manufacturers in Asia](https://www.tamtam.ai/l/hardware-companies-in-asia) (2,360)

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Source: https://www.tamtam.ai/l/hardware-companies-seoul