# List of multinational companies in Gyeonggi

Tamtam tracks 55 multinational companies headquartered in Gyeonggi. This list ranks the 50 largest by number of employees on LinkedIn, led by Samsung Electronics, Samsung Mobile and NAVER Corp. Their median headcount is 589. Half of them were founded in 1991 or later. The most common headquarters are Seongnam (11).

The companies listed in Gyeonggi are primarily large firms in technology and manufacturing. Many are subsidiaries or affiliates of major Korean conglomerates, with a strong focus on electronics, automotive components, and digital services. This includes Samsung Electronics, a global leader in consumer electronics; NAVER Corp, an ICT company known for its search portal and messenger services; and HL Mando, an automotive parts manufacturer.

A notable pattern is the concentration of headquarters in cities like Seongnam and Suwon-Si, indicating key industrial and technological hubs within Gyeonggi. The list also shows a mix of companies founded across several decades, from the 1940s to the 2010s, reflecting sustained industrial development.

🇰🇷 Gyeonggi · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Samsung Electronics](https://www.tamtam.ai/c/samsung-electronics) (samsung.com)<br>A global technology leader, constantly innovating in TVs, smartphones, wearables, appliances, medical devices, and more Embracing diversity and creativity for growth | Computers and Electronics Manufacturing | 🇰🇷 Suwon-Si | 287,000 |  |
| 2 | [Samsung Mobile](https://www.tamtam.ai/c/samsung-mobile) (samsung.com)<br>This company specializes in providing secure and highly productive mobile solutions for enterprises, focusing on Android security and productivity on Samsung Galaxy devices worldwide | Consumer Electronics | 🇰🇷 Gyeonggi-do | 19,596 | 1969 |
| 3 | [NAVER Corp](https://www.tamtam.ai/c/naver-corp) (navercorp.com)<br>A global ICT company offering search portal, messenger, camera app, webtoon, metaverse platform, AI, robotics, and mobility innovations for shared growth | Technology, Information and Internet | 🇰🇷 Seongnam-Si | 5,121 | 1999 |
| 4 | [Samsung SDI](https://www.tamtam.ai/c/samsung-sdi) (samsungsdi.com)<br>Development and production of innovative technology products with cutting-edge features, focusing on creativity and continuous improvement since 1970. | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Yongin-si | 4,080 | 1970 |
| 5 | [HL Mando](https://www.tamtam.ai/c/hl-mando) (hlmando.com)<br>A leading automotive parts company focused on developing cutting-edge technology and quality parts for safe vehicles on a global scale | Motor Vehicle Manufacturing | 🇰🇷 Seongnam | 3,561 | 1962 |
| 6 | [Hankook Tire](https://www.tamtam.ai/c/hankook-tire-seongnam-si) (hankooktire.com)<br>Manufacture and supply high-quality tires globally, focusing on innovation, premium brands, and sustainable ESG management practices. | Motor Vehicle Manufacturing | 🇰🇷 Seongnam-si | 2,083 | 1941 |
| 7 | [LINE Plus Corp](https://www.tamtam.ai/c/line-plus-corp) (linepluscorp.com)<br>A global mobile platform company offering a variety of services like search, messaging, media, commerce, fintech, and AI to create amazing everyday experiences | Technology, Information and Internet | 🇰🇷 Bundang-gu | 1,634 | 2013 |
| 8 | [LS Cable & System](https://www.tamtam.ai/c/ls-cable-and-system) (lscns.co.kr)<br>A global cable solutions provider offering state-of-the-art products, engineering services, and global production capacity to power authorities and carriers worldwide | Manufacturing | 🇰🇷 Anyang-si | 1,630 | 1962 |
| 9 | [NEXON KOREA](https://www.tamtam.ai/c/nexon-korea) (company.nexon.com)<br>Develops and services over 40 online games across various genres in more than 190 countries worldwide, expanding gaming experiences. | Computer Games | 🇰🇷 Seongnam | 1,579 | 1994 |
| 10 | [HYUNDAI TRANSYS](https://www.tamtam.ai/c/hyundai-transys) (hyundai-transys.com)<br>A global automotive parts supplier specializing in powertrain and seating components for Hyundai and Kia Motors, with operations in Asia, Europe, and the Americas | Motor Vehicle Manufacturing | 🇰🇷 Hwaseong | 1,566 | 1994 |
| 11 | [NHN](https://www.tamtam.ai/c/nhn) (nhn.com)<br>A technology company offering diverse services in gaming, payment, commerce, content, AI/data, and cloud solutions to enhance daily life and pursue global growth | IT Services and IT Consulting | 🇰🇷 Seongnam | 1,468 | 2013 |
| 12 | [Hyundai Rotem](https://www.tamtam.ai/c/hyundai-rotem) (hyundai-rotem.co.kr)<br>A diversified company within Hyundai Motor Group providing innovative and sustainable mobility solutions in the railway, defense, and plant & machinery systems sectors globally | Truck Transportation | 🇰🇷 Uiwang-si | 1,442 |  |
| 13 | [Dankook University](https://www.tamtam.ai/c/dankook-university) (dankook.ac.kr)<br>A leading university in Korea, focusing on grooming young talent and academic advancement with a strong emphasis on industry-university cooperation and innovation in various fields | Higher Education | 🇰🇷 Yong-in | 1,260 | 1947 |
| 14 | [KOICA](https://www.tamtam.ai/c/koica) (koica.go.kr)<br>An independent agency founded in 1991, dedicated to implementing grant aid programs across various sectors to promote global development and cooperation | International Affairs | 🇰🇷 Seongnam-Si | 1,230 | 1991 |
| 15 | [LIG Defense&Aerospace](https://www.tamtam.ai/c/lig-defense-and-aerospace) (ligdefenseaerospace.com)<br>The company develops and produces advanced precision electronic systems, including missile, radar, avionics, communication systems, and more for military and commercial applications globally | Defense and Space Manufacturing | 🇰🇷 Yongin-si | 1,144 | 1976 |
| 16 | [LS Automotive](https://www.tamtam.ai/c/ls-automotive) (lsautomotive.com)<br>A global vehicle components company with world-class quality, offering career opportunities, focused on customer satisfaction, sustainability, and innovation in automotive technologies | Motor Vehicle Manufacturing | 🇰🇷 Anyang-si | 938 | 1973 |
| 17 | [MegazoneCloud](https://www.tamtam.ai/c/megazonecloud) (megazone.com)<br>A cloud technology provider offering consulting services and solutions for businesses' digital transformation, with a focus on Amazon Web Services | IT Services and IT Consulting | 🇰🇷 Gwacheon-si | 916 | 2018 |
| 18 | [Ajou University](https://www.tamtam.ai/c/ajou-university) (ajou.ac.kr)<br>A higher education institution located in gyeonggi-do, South Korea, specializing in providing advanced education and academic programs | Higher Education | 🇰🇷 Suwon | 898 | 1973 |
| 19 | [LS ELECTRIC](https://www.tamtam.ai/c/ls-electric) (ls-electric.com)<br>This company provides power systems and automated solutions for efficiency, sustainability, and clean energy, focusing on smart factories and energy solutions | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Anyang-si | 881 | 1974 |
| 20 | [POSCO DX](https://www.tamtam.ai/c/posco-dx) (poscodx.com)<br>A leading provider of total smart industry IT solutions, POSCO ICT offers engineering, automation, system integration, and IT outsourcing services with a focus on green growth and innovation | IT Services and IT Consulting | 🇰🇷 Seongnam-Si | 844 | 1989 |
| 21 | [AhnLab, Inc.](https://www.tamtam.ai/c/ahnlab-inc) (ahnlab.com)<br>A global cybersecurity company founded in 1995, offering comprehensive protection for endpoints, networks, transactions, and essential services with best-of-breed threat prevention | Computer and Network Security | 🇰🇷 Seongnam-si | 704 | 1995 |
| 22 | [GC Biopharma (GC녹십자)](https://www.tamtam.ai/c/gc-biopharma-gc) (gcbiopharma.com)<br>Biopharmaceutical company based in South Korea specializing in protein therapeutics and vaccines, with a focus on quality healthcare solutions for over 50 years | Pharmaceutical Manufacturing | 🇰🇷 Yongin-si | 660 | 1967 |
| 23 | [Ajou University](https://www.tamtam.ai/c/ajou-university-suwon-si) (ajou.ac.kr)<br>A leading research university in Korea with 10 colleges, focusing on humanity, truth-seeking, and global unity Located in Suwon, near Seoul | Higher Education | 🇰🇷 Suwon | 637 | 1973 |
| 24 | [TMAXSOFT](https://www.tamtam.ai/c/tmaxsoft) (tmaxsoft.com)<br>A global software innovator offering modernization solutions for enterprise CIOs, specializing in enterprise RDBMS, legacy rehosting, and web application servers | Software Development | 🇰🇷 Chicago | 593 | 1997 |
| 25 | [Cello Square by Samsung SDS Global](https://www.tamtam.ai/c/cello-square-by-samsung-sds-global) (cello-square.com)<br>An innovative IT solution provider in Korea offering integrated logistics solutions, business process outsourcing, and a logistics marketplace with cutting-edge technology | Transportation, Logistics, Supply Chain and Storage | 🇰🇷 Seoul | 589 |  |
| 26 | [Humax](https://www.tamtam.ai/c/humax) (humaxmobility.com)<br>A global provider of total mobility solutions, advanced technologies, and premium content delivery systems for operators, consumers, and vehicle brands worldwide | Motor Vehicle Manufacturing | 🇰🇷 Bundang-gu | 587 | 1989 |
| 27 | [SOLUM](https://www.tamtam.ai/c/solum) (solum-group.com)<br>A global company specializing in power suppliers, tuners, and electronic shelf labels with locations in South Korea, USA, and Germany | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Yongin-si | 585 | 2015 |
| 28 | [Hanwha Vision](https://www.tamtam.ai/c/hanwha-vision) (hanwhavision.com)<br>A leading provider in the global video surveillance industry, specializing in optical design, image processing, cybersecurity, AI, and cloud technologies | Security and Investigations | 🇰🇷 Seongnam-Si | 550 |  |
| 29 | [KGM](https://www.tamtam.ai/c/kgm) (kg-mobility.com)<br>A leading Korean automotive manufacturer known for innovative SUVs and luxury sedans, with technical cooperation for competitive SUV production | Motor Vehicle Manufacturing | 🇰🇷 Pyeongtaek | 505 | 1954 |
| 30 | [SK chemicals](https://www.tamtam.ai/c/sk-chemicals) (skchemicals.com)<br>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 | Plastics Manufacturing | 🇰🇷 Seongnam-Si | 491 |  |
| 31 | [HD Construction Equipment](https://www.tamtam.ai/c/hd-construction-equipment) (hd-ce.com)<br>A leading manufacturer of construction equipment, engines, and utility equipment, supplying a range of products for various industries globally | Machinery Manufacturing | 🇰🇷 Seongnam-si | 469 | 1985 |
| 32 | [HD Hyundai Construction Equipment](https://www.tamtam.ai/c/hd-hyundai-construction-equipment) (hd-hyundaice.com)<br>Specialized manufacturer of construction equipment including excavators, wheel loaders, backhoe loaders, and skid loaders for construction and material handling | Machinery Manufacturing | 🇰🇷 Seongnam-Si | 416 | 2017 |
| 33 | [Ray](https://www.tamtam.ai/c/ray) (raymedical.com)<br>A global leader in dental imaging solutions, Ray Co, Ltd specializes in CBCT technology and digital dentistry products for global markets | Medical Equipment Manufacturing | 🇰🇷 Seongnam-Si | 378 | 2004 |
| 34 | [Hyundai Kefico Corporation (현대케피코)](https://www.tamtam.ai/c/hyundai-kefico-corporation) (hyundai-kefico.com)<br>The company designs, verifies, calibrates, and manufactures advanced electronic control systems for vehicles, with a focus on safety and efficiency | Motor Vehicle Manufacturing | 🇰🇷 Gunpo | 374 | 1987 |
| 35 | [Samsung Foundry](https://www.tamtam.ai/c/samsung-foundry) (samsung.com)<br>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 | Semiconductor Manufacturing | 🇰🇷 Yongin-si | 372 |  |
| 36 | [HD Korea Shipbuilding & Offshore Engineering Co., Ltd. (HD KSOE)](https://www.tamtam.ai/c/hd-korea-shipbuilding-and-offshore-engineering-co-ltd-hd-ksoe) (hdksoe.co.kr)<br>A shipbuilding business cluster focused on becoming a technology-oriented company with world-class R&D and engineering capabilities in the marine mobility industry | Shipbuilding | 🇰🇷 Seongnam | 367 |  |
| 37 | [KAON GROUP](https://www.tamtam.ai/c/kaon-group) (kaongroup.com)<br>Development and manufacturing of digital connectivity devices and services for PayTV and Broadband industries, offering integrated end-to-end solutions worldwide. | Telecommunications | 🇰🇷 Seongnam-Si | 366 | 2001 |
| 38 | [SD BIOSENSOR INC](https://www.tamtam.ai/c/sd-biosensor-inc) (sdbiosensor.com)<br>The company is dedicated to enhancing human health through the creation of groundbreaking products, prioritizing sustainable growth and community well-being | Medical Equipment Manufacturing | 🇰🇷 Suwon-Si | 365 | 2010 |
| 39 | [Intellian Technologies](https://www.tamtam.ai/c/intellian-technologies) (intelliantech.com)<br>A global leader in satellite antenna systems, providing connectivity solutions for various industries, focusing on simplicity, innovation, and customer satisfaction | Satellite Telecommunications | 🇰🇷 Seongnam-Si | 348 | 2004 |
| 40 | [HD Hyundai Electric Co., Ltd.](https://www.tamtam.ai/c/hd-hyundai-electric-co-ltd) (hd-hyundaielectric.com)<br>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 | Appliances, Electrical, and Electronics Manufacturing | 🇰🇷 Seongnam-Si | 342 | 1987 |
| 41 | [LS Mtron](https://www.tamtam.ai/c/ls-mtron) (lsmtron.com)<br>The company operates in machinery and components sectors, producing tractors, injection molding systems, track shoes for battle vehicles, and electronic components | Industrial Machinery Manufacturing | 🇰🇷 Anyang | 338 | 2008 |
| 42 | [HD Hyundai](https://www.tamtam.ai/c/hd-hyundai) (hd-hyundai.com)<br>Global heavy industries company providing innovative solutions in shipbuilding, marine engineering, oil refining, petrochemicals, and energy management through its three core businesses | Holding Companies | 🇰🇷 Seongnam | 336 |  |
| 43 | [NAVER Z (ZEPETO)](https://www.tamtam.ai/c/naver-z-zepeto) (naverz-corp.com)<br>Platform for creating and sharing avatars in a virtual social universe, connecting millions of users with brands, IP, and celebrities | Software Development | 🇰🇷 Seongnam | 324 | 2018 |
| 44 | [MIDAS IT Co., Ltd.](https://www.tamtam.ai/c/midas-it-co-ltd) (midasuser.com)<br>Specializing in civil/structural/mechanical engineering software development and analysis, providing engineering consulting services with a team of experienced developers and engineers | IT Services and IT Consulting | 🇰🇷 Seongnam | 321 | 1989 |
| 45 | [Pearl Abyss](https://www.tamtam.ai/c/pearl-abyss) (pearlabyss.com)<br>Global game developer creating extraordinary gameplay experiences with Black Desert MMORPG franchise, serving 40 million users worldwide on PC, mobile, and console | Computer Games | 🇰🇷 Anyang | 314 | 2010 |
| 46 | [Huons Global](https://www.tamtam.ai/c/huons-global) (huonsglobal.com)<br>A leading healthcare group with a focus on pharmaceuticals, medical devices, health functional foods, and ESG sustainability practices for a better future | Pharmaceutical Manufacturing | 🇰🇷 Seongnam | 308 | 1965 |
| 47 | [WEVERSE COMPANY](https://www.tamtam.ai/c/weverse-company) (weverse.co)<br>A pioneering company in entertainment and media platforms, developing global services for artists and fans through innovative digital platforms and commerce services | IT Services and IT Consulting | 🇰🇷 Seongnam | 278 | 2018 |
| 48 | [Kakao Games](https://www.tamtam.ai/c/kakao-games) (recruit.kakaogames.com)<br>A global game publisher with a diverse portfolio catering to all ages, known for titles like Black Desert Online, Path of Exile, and PUBG | IT Services and IT Consulting | 🇰🇷 Seongnam | 219 |  |
| 49 | [Suprema Inc.](https://www.tamtam.ai/c/suprema-inc) (supremainc.com)<br>Global innovator in access control and AI-based biometric solutions, simplifying enterprise security with facial recognition, fingerprint authentication, mobile credentials, and more | IT Services and IT Consulting | 🇰🇷 Seongnam | 210 | 2000 |
| 50 | [Erborian](https://www.tamtam.ai/c/erborian) (erborian.com)<br>Combines Korean beauty rituals and science to create effective skincare products promoting natural beauty and self-esteem through visible results. | Personal Care Product Manufacturing | 🇰🇷 Seongnam-si | 146 |  |

## 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 Gyeonggi

- [The largest companies in Gyeonggi](https://www.tamtam.ai/l/largest-companies-gyeonggi) (147)
- [Companies with in-house R&D in Gyeonggi](https://www.tamtam.ai/l/r-and-d-companies-gyeonggi) (56)
- [Manufacturers in Gyeonggi](https://www.tamtam.ai/l/manufacturers-gyeonggi) (43)
- [Hardware manufacturers in Gyeonggi](https://www.tamtam.ai/l/hardware-companies-gyeonggi) (31)
- [IT Services and IT Consulting companies in Gyeonggi](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-gyeonggi) (31)
- [Companies with a mobile app in Gyeonggi](https://www.tamtam.ai/l/companies-with-mobile-app-gyeonggi) (30)
- [Publicly traded companies in Gyeonggi](https://www.tamtam.ai/l/publicly-traded-companies-gyeonggi) (26)

## The same list elsewhere in South Korea

- [Multinational companies in South Korea](https://www.tamtam.ai/l/multinational-companies-south-korea) (299)
- [Multinational companies in Seoul](https://www.tamtam.ai/l/multinational-companies-seoul) (150)

## The same list elsewhere

- [Multinational companies in the world](https://www.tamtam.ai/l/multinational-companies-in-the-world) (74,925)
- [Multinational companies in Asia](https://www.tamtam.ai/l/multinational-companies-in-asia) (7,275)

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Source: https://www.tamtam.ai/l/multinational-companies-gyeonggi