| # | Company | Employees |
|---|---|---|
| 1 |
Hyundai Motor Companyhyundai.com
Global automotive company producing millions of vehicles annually, focusing on clean energy, connected technology, and human-centered mobility solutions. |
66,571 |
| 2 |
Hyundai MOBISmobis.com
Specializing in automotive technology, we are a leading supplier of parts worldwide, with a focus on software and system solutions for future mobility |
8,509 |
| 3 |
Hanon Systemshanonsystems.com
A global supplier of automotive thermal and energy management solutions for electrified and conventional vehicles, focusing on innovation, global reach, and sustainable value creation |
6,236 |
| 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 |
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 |
| 6 |
Kia Motorsonlinecareer360.com
A research company located in Seoul, South Korea focusing on automobile innovation and development |
2,590 |
| 7 |
Hankook Tirehankooktire.com
Manufacture and supply high-quality tires globally, focusing on innovation, premium brands, and sustainable ESG management practices. |
2,083 |
| 8 |
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 |
| 9 |
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 |
| 10 |
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 |
| 11 |
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 |
| 12 |
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 |
| 13 |
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 |
| 14 |
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 |
| 15 |
Humaxhumaxmobility.com
A global provider of total mobility solutions, advanced technologies, and premium content delivery systems for operators, consumers, and vehicle brands worldwide |
587 |
| 16 |
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 |
| 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 |
KARkarkorea.com
This South Korean company specializes in designing, manufacturing, and finishing autonomous driving vehicles with exclusive technology and all necessary components |
490 |
| 19 |
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 |
| 20 |
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 |
| 21 |
erae Automotiveerae-automotive.com
Global OEM Tier 1 supplier specializing in Thermal Systems, Air Conditioning, HVAC Controls, and Infotainment components with international presence in 9 countries |
185 |
| 22 |
Bosch Koreacareers.smartrecruiters.com
A company in Korea manufactures and markets automotive, industrial automation, power tools, and security systems with five subsidiary companies and around 1,660 employees |
176 |
| 23 |
Hyundai Autronhyundai-autron.com
Innovative leader in automotive electronic control technology, specializing in semiconductors, control units, and software to enhance mobility and connectivity |
147 |
| 24 |
Sebang Global Battery Co Ltdgbattery.com
A leading Korean battery manufacturer with over 65 years of experience, focused on innovation and technology development for clean energy solutions worldwide |
72 |
| 25 |
Motor Seven Co., Ltd. ( Korean Auto Spare Parts Export Company)motorseven.co.kr
A leading distributor/exporter of automotive parts in South Korea since 1995, exporting Genuine, OEM, and Motor7 auto parts worldwide |
18 |
| 26 |
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 |
| 27 |
eflow co., ltdeflow.kr
Development of hydrogen fuel cell powertrains, green hydrogen production, and refueling stations for light electric vehicles. |
2 |
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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 10, 2026.