| # | 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 |
LG Electronicslg.com
This company provides products and services aimed at improving lives through innovation in home appliances, electronics, digital signage, and more |
64,886 |
| 3 |
Doosandoosan.com
A global company specializing in building power plants, industrial facilities, machine tools, engines, bridges, construction equipment, and consumer products |
42,000 |
| 4 |
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 |
| 5 |
SK hynixskhynix.com
Leading global producer of DRAM and NAND Flash memory chips, providing advanced semiconductor solutions for diverse IT product demands worldwide. |
8,276 |
| 6 |
LG Energy Solutionlgensol.com
A leading company in eco-friendly energy solutions, specializing in distinctive materials and next-generation batteries for EVs and energy storage systems |
7,463 |
| 7 |
Hanwha Grouphanwha.com
Global diversified business group specializing in energy, aerospace, finance, retail, and services with a strong focus on sustainability and innovation. |
7,341 |
| 8 |
LG Displaylgdisplay.com
A global leader in display technologies, manufacturing TFT-LCD and OLED panels for TVs, laptops, mobile devices, and automotive lighting applications |
6,145 |
| 9 |
HD Hyundai Heavy Industrieshhi.co.kr
A global leader in shipbuilding and heavy industries, with a history of innovation and excellence in delivering large-scale projects worldwide |
4,308 |
| 10 |
Samsung SDIsamsungsdi.com
Development and production of innovative technology products with cutting-edge features, focusing on creativity and continuous improvement since 1970. |
4,080 |
| 11 |
POSCO HOLDINGSnewsroom.posco.com
A global steel producer known for innovative solutions, recognized for competitiveness, and committed to corporate citizenship and sustainable growth |
3,967 |
| 12 |
SK Innovationskinnovation.com
SK Innovation is a leading energy company focused on sustainable technologies, oil refining, petrochemicals, electric vehicle batteries, and global material solutions |
3,906 |
| 13 |
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 |
| 14 |
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 |
| 15 |
SKskcareers.com
A diverse collection of multinational manufacturing and service companies united under a holding structure, sharing a common brand and culture for growth and prosperity |
3,317 |
| 16 |
SK Engineering & Construction Co. Ltdskecoplant.com
A company established in 1977, focused on sustainable growth, stability, and achieving happiness for humanity through consistent efforts |
3,256 |
| 17 |
Youngone Corporationyoungone.co.kr
Manufacturing performance and outdoor apparel, footwear, bags, and accessories with global production facilities and a focus on quality and community development. |
3,155 |
| 18 |
CJ CheilJedangcj.co.kr
A global lifestyle company transitioning from a food company, focusing on healthy, convenient products, biotech, and global expansion with premium brands |
3,111 |
| 19 |
Samsung Electro-Mechanicssamsungsem.com
Develops and produces advanced electronic components, modules, and substrates globally using high-frequency wireless materials and precision mechanics for diverse business-to-business technology solutions. |
3,077 |
| 20 |
Kia Worldwideworldwide.kia.com
The company believes movement inspires ideas and creates sustainable mobility solutions, products, stores, and services to free up time for activities |
2,778 |
| 21 |
Celltrion Inccelltrion.com
Global marketer of biological medicines, including the world's first biosimilar monoclonal antibody, to expand patient access to advanced therapies worldwide |
2,628 |
| 22 |
VNV Co,Ltdvnv.kr
Specializing in manufacturing, distributing, and exporting eco-friendly hand and body soaps, organic liquid soaps, skin care and cosmetic products worldwide |
2,615 |
| 23 |
Hyosung Corporationhyosung.com
An innovative conglomerate focused on developing materials, parts, and equipment for safer vehicles, sustainable electricity, functional clothing, and customer well-being |
2,571 |
| 24 |
Samsung Biologicssamsungbiologics.com
Fully integrated CDMO providing contract development and manufacturing services for biologics products with largest capacity, fastest throughput, and proven regulatory approvals globally |
2,450 |
| 25 |
SK Groupeng.sk.com
Investment and development in manufacturing, EV batteries, hydrogen energy, pharmaceuticals, semiconductors, focusing on growth, governance, and social impact. |
2,368 |
| 26 |
Hankook Tirehankooktire.com
Manufacture and supply high-quality tires globally, focusing on innovation, premium brands, and sustainable ESG management practices. |
2,083 |
| 27 |
Samsung Heavy Industriesshi.samsung.co.kr
A global leader in shipbuilding and offshore EPC projects, specializing in high-tech vessels and pioneering innovative products in various markets |
2,080 |
| 28 |
LOTTE chemicallottechem.com
A global petrochemical company focused on developing cutting-edge technologies for producing high-quality chemical products and expanding globally |
1,939 |
| 29 |
Doosan Enerbilitydoosanenerbility.com
A global provider of integrated solutions in power generation, energy, and desalination plants, offering sustainable energy solutions worldwide since 1962 |
1,726 |
| 30 |
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 |
| 31 |
Hyundai Motor Grouphyundaimotorgroup.com
Global corporation in automobile, steel, construction industries with focus on creating a better future through innovative thinking and collaborative efforts |
1,585 |
| 32 |
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 |
| 33 |
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 |
| 34 |
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 |
| 35 |
Genesisgenesis.com
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 |
1,363 |
| 36 |
Hansae Fashion Worldwidehansae.com
A global apparel exporter with 14 locations in 7 countries, specializing in fashion design and aiming to inspire dreams and contribute to society |
1,270 |
| 37 |
SK Oneng.sk-on.com
A global leader in electric vehicle battery development and solutions, offering safe, high-performing products and comprehensive services for sustainable battery lifecycle |
1,224 |
| 38 |
Hanwha Oceanhanwhaocean.com
A leading premium shipbuilding and offshore company specializing in building high-quality vessels, offshore platforms, and military ships with cutting-edge technology and expertise |
1,160 |
| 39 |
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 |
| 40 |
Osstemosstem.com
A leading dental implant company in Korea, pioneering the market, offering comprehensive dental solutions globally to become the top dental industry leader |
1,043 |
| 41 |
Sae-A Trading Co.,Ltdsae-a.com
A global apparel manufacturer with 40+ facilities in 10 countries, supplying top retailers with high-quality products while prioritizing community engagement and corporate social responsibility |
1,030 |
| 42 |
Celltrion Inc.celltrion.com
Innovative Korean pharmaceutical company pioneering antibody biosimilars and small molecule pharmaceuticals, focusing on global growth and novel healthcare platforms |
1,011 |
| 43 |
GS Caltexgscaltex.com
A leading petroleum company in South Korea, producing high-quality petroleum products and leading economic development through domestic supply and global exports |
979 |
| 44 |
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 |
| 45 |
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 |
| 46 |
HYUNDAI ELEVATORhyundaielevator.co.kr
The company specializes in providing advanced mobility solutions like elevators, escalators, and parking systems, leveraging technology for a safer and smarter move |
855 |
| 47 |
TPtp-inc.com
An apparel manufacturer based in Korea with factories in Vietnam, Indonesia, Myanmar, and China, specializing in a range of apparel products and insulation materials |
854 |
| 48 |
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 |
| 49 |
LG Vehicle Solution Globallg.com
A company specializing in commercializing environmentally responsible automotive components and core solutions based on proprietary technologies for global car manufacturers |
801 |
| 50 | 788 | |
| 51 |
HYUNDAI WIAhyundai-wia.com
A leading company founded in 1976, specializing in manufacturing cutting-edge products for automobile parts, machine tools, and defense industry |
785 |
| 52 |
Hansoll Textile Ltd.hansoll.com
A global textile manufacturer exporting knit apparel to the US, Europe, and Japan, with operations in Asia and Central America since 1992 Values employee development and business integrity |
773 |
| 53 |
Kolon Industries, Inckolonindustries.com
A pioneer in the Korean fashion industry, offering innovative and reliable products, with a vision to lead globally in fashion trends |
740 |
| 54 |
Dongwon groupdongwon.com
Focused on contributing to society for mutual growth, this company believes in the importance of social responsibility as a foundation |
734 |
| 55 |
ShinWonshinwon.com
Established in 1973 in Seoul, Korea, this company specializes in exporting OEM/ODM knit and sweater apparel worldwide, while also offering innovative fashion experiences in Korea and China |
681 |
| 56 |
YG-1yg1.solutions
Global leader in cutting tool manufacturing with 28 production plants and 27 sales offices worldwide, exporting to over 75 countries Dedicated to customer satisfaction |
667 |
| 57 |
S-OIL Corporations-oil.com
An oil refining company with integrated operations in lubricants and petrochemicals, ensuring stable crude oil imports and superior competitiveness in the market |
666 |
| 58 |
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 |
| 59 |
Hanwha Aerospace
Specializing in land defense systems, the company's division focuses on developing and providing innovative solutions for military applications |
657 |
| 60 |
KECkeccorp.com
A global semiconductor company established in 1969, specializing in non-memory semiconductor products such as transistors, diodes, ICs, MOSFETs, and more |
648 |
| 61 | 645 | |
| 62 |
Nongshim Co., Ltd.eng.nongshim.com
A South Korean food and beverage company known for producing instant noodles and snacks, with products sold in over 100 countries |
623 |
| 63 |
LF corplfcorp.com
The company leads in innovative, kind fashion production, creating a fashion culture that enhances people's lifestyles and enjoyment |
618 |
| 64 |
LOTTE Biologicslottebiologics.com
A South Korean CDMO company acquired a biologics manufacturing site, offering drug substance production with GMP operational capabilities and global regulatory approvals Expanding with new bio plants |
611 |
| 65 |
NEXEN TIREnewsroom.nexentire.com
Manufacturing and selling high-quality tires globally with advanced technology, strong brand presence, and continuous growth in vehicle tire markets. |
592 |
| 66 |
SOLUMsolum-group.com
A global company specializing in power suppliers, tuners, and electronic shelf labels with locations in South Korea, USA, and Germany |
585 |
| 67 |
LG Magna e-Powertrainlgmagna.com
A joint venture offering electric vehicle solutions such as drive motors, power conversion devices, and integrated systems with organic production processes |
568 |
| 68 | 561 | |
| 69 |
LG HVAC Solutions Globallg.com
The company specializes in providing optimized HVAC solutions for various business environments, focusing on comfort, efficiency, and sustainability through innovative technology |
559 |
| 70 |
Kumho Tirekumhotire.co.kr
A global tire manufacturing company with 8 production facilities across Korea, China, USA, and Vietnam along with a worldwide sales network |
390 |
| 71 | 240 | |
| 72 |
hanhwa totalhanwha-total.com
A company specializing in petrochemicals, with a focus on producing various chemical products and materials for a wide range of industries |
173 |
| 73 |
Nara Spacenaraspace.com
Provides complete CubeSat solutions, including development, manufacturing, and operation services. A total solution company for CubeSat technology. |
56 |
| 74 |
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 |
| 75 |
CHC LAB(씨에이치씨랩)chclab.com
A manufacturer of laboratory furniture, fume hoods, and biosafety equipment with a focus on raising industry standards and international expansion |
24 |
| 76 |
CCMTechccmtech.bzh
Specializing in sectors such as vegetables, meat, dairy, biscuit making, forestry, agriculture, and more Services include machining, maintenance, and industrial piping |
22 |
| 77 |
ILJIN Composites Co.,Ltd.composite.co.kr
Global leader in hydrogen storage systems with over 20 years of experience Provides cylinder and whole system/module solutions for FCEV vehicles |
14 |
| 78 |
Caolionoapologistadaverdade.org
Pioneering Korean natural skincare brand offering innovative solutions for sensitive skin with a diverse portfolio of brands sold worldwide |
7 |
| 79 |
SJE Corporation, Ltd.sjecorp.com
The company manufactures and distributes steam cleaning machines for car wash, general cleaning, and more, using minimal water and environmentally friendly technology |
6 |
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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 Oct 24, 2026.
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