# Publicly traded companies headquartered in Gyeonggi

Tamtam tracks 26 publicly traded companies headquartered in Gyeonggi. This list ranks all of them by number of employees on LinkedIn, led by Samsung Electronics, NAVER Corp and Samsung SDI. Their median headcount is 660. Half of them were founded in 1987 or later. The most common headquarters are Seongnam (9).

The publicly traded companies in Gyeonggi are primarily large corporations with a strong focus on technology, manufacturing, and IT services. Samsung Electronics, a global technology leader, innovates in various electronics. NAVER Corp offers a wide range of ICT services, from search portals to AI. Samsung SDI develops and produces innovative technology products, while HL Mando specializes in automotive parts. NC is a global game developer, and Hankook Tire manufactures high-quality tires.

A notable pattern among these companies is their significant presence in Seongnam-Si, which hosts several major players including NAVER Corp, HL Mando, NHN, and Hankook Tire. This indicates a concentration of large-scale technology and manufacturing operations within this specific city.

🇰🇷 Gyeonggi · 26 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 | [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 |
| 3 | [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 |
| 4 | [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 |
| 5 | [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 |
| 6 | [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 |
| 7 | [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 |  |
| 8 | [삼성중공업](https://www.tamtam.ai/c/company-96122908) (samsungshi.com)<br>A global leader in shipbuilding and offshore EPC projects, specializing in high-tech vessels like drillships, LNG carriers, FPSOs, and Arctic tankers | Shipbuilding | 🇰🇷 Seongnam | 1,423 | 1974 |
| 9 | [카카오뱅크 Kakaobank](https://www.tamtam.ai/c/kakaobank) (kakaobank.com)<br>A bank that started for individuals, now for everyone Changing the way people send, receive, collect, and spend money Offering various job opportunities | Financial Services | 🇰🇷 Seongnam-si | 1,148 | 2016 |
| 10 | [카카오페이 (kakaopay)](https://www.tamtam.ai/c/kakaopay) (kakaopay.com)<br>Revolutionizing financial services by providing convenient, safe, and diverse offerings, transforming traditional finance into a seamless and effortless experience for all | IT Services and IT Consulting | 🇰🇷 Seongnam | 1,004 | 2017 |
| 11 | [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 |
| 12 | [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 |
| 13 | [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 |
| 14 | [WEMADE](https://www.tamtam.ai/c/wemade) (wemade.com)<br>A leading game company in South Korea, creating innovative games and leading the way in blockchain technology, NFT, Defi, and metaverse investments | Computer Games | 🇰🇷 Seongnam | 396 | 2000 |
| 15 | [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 |
| 16 | [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 |  |
| 17 | [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 |
| 18 | [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 |
| 19 | [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 |
| 20 | [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 |
| 21 | [Wonik IPS](https://www.tamtam.ai/c/wonik-ips) (ips.co.kr)<br>A leading Korean semiconductor equipment company specializing in ALD, CVD, dry etchers, OLED deposition, and 3D NAND Flash systems with global aspirations | Semiconductor Manufacturing | 🇰🇷 Pyeongtaek-Si | 283 | 1981 |
| 22 | [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 |  |
| 23 | [HK inno-n](https://www.tamtam.ai/c/hk-inno-n) (inno-n.com)<br>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 | Pharmaceutical Manufacturing | 🇰🇷 Seongnam | 213 | 1984 |
| 24 | [Woongjin Thinkbig Co., Ltd](https://www.tamtam.ai/c/woongjin-thinkbig-co-ltd) (company.wjthinkbig.com)<br>A company in Korea focuses on educational innovation and creating new values to meet the educational needs of children | Higher Education | 🇰🇷 Paju | 135 | 1980 |
| 25 | [Kakao Games Corp](https://www.tamtam.ai/c/kakao-games-corp) (kakaogames.com)<br>A South Korean multi-platform game publisher and developer known for Black Desert Online and PlayerUnknown's Battlegrounds, striving to create exceptional gaming experiences | Computer Games | 🇰🇷 Sungnam-si | 101 |  |
| 26 | [Global ZEUS (ZEUS Co., Ltd.)](https://www.tamtam.ai/c/global-zeus-zeus-co-ltd) (globalzeus.com)<br>The company provides high-quality solutions for the Semiconductor, Automation, LCD, LED, renewable energy, and IT industries through innovative products and exceptional customer support | Semiconductor Manufacturing | 🇰🇷 Hwaseong-si | 44 | 1970 |

## 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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- [Multinational companies in Gyeonggi](https://www.tamtam.ai/l/multinational-companies-gyeonggi) (55)
- [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)

## The same list elsewhere in South Korea

- [Publicly traded companies in South Korea](https://www.tamtam.ai/l/publicly-traded-companies-south-korea) (122)
- [Publicly traded companies in Seoul](https://www.tamtam.ai/l/publicly-traded-companies-seoul) (61)

## The same list elsewhere

- [Publicly traded companies in the world](https://www.tamtam.ai/l/publicly-traded-companies-in-the-world) (11,535)
- [Publicly traded companies in Asia](https://www.tamtam.ai/l/publicly-traded-companies-in-asia) (3,129)

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