South Korea Top Companies List by Market Cap as of August 2026

Doosan Heavy Industries & Construction develops and supplies casting and forging products for industrial facilities, power generation facilities for nuclear and thermal plants, desalination plants as well as material handling systems to domestic and global plant markets. The headquarters is in South Korea.

It provides integrated power solutions, offering a wide breadth of capabilities from the construction of power plants to the manufacture of boilers, turbines and equipment for nuclear and wind power stations.

Hyundai Mobis is Automotive Parts manufacturing company with headquarters is in South Korea. They have 32,065 employees as on December 2019.

The company annual revenue is approximately 38 trillion South Korean won.

Celltrion is a Biopharmaceutical company. The headquarters is in South Korea.

Celltrion achieved what was thought impossible by launching the world’s first “antibody biosimilar” from a country with a relatively underdeveloped pharmaceutical sector. The company has pioneered numerous uncharted areas to stellar success, which it plans to follow up by continuing its growth as a global biopharmaceutical company with unique approaches to small molecule pharmaceuticals and new businesses such as the Ubiquitous-healthcare platform business.

Samsung SDI is a manufacturer of the rechargeable batteries for IT industry, automobiles and energy storage systems (ESS), as well as cutting-edge materials used to produce semiconductors, displays, and solar panels. Headquarters is in South Korea.

The company annual revenue is 20,124 trillion KRW and 11,315 employees as on 2022.

LG ELECTRONICS is Electronics Company with headquarters is in Seoul, South Korea.

Hana Financial Group dedicates itself to customer satisfaction and happiness through a comprehensive range of financial products and services for each stage of life. As part of these services, its premier financial service network leads the industry by creating synergy among its subsidiaries in banking, securities, credit cards, capital, and insurance.

Number of employees at the end of 2019 stood at 12,754. Headquarters is in South Korea.

Naver Corporation is Internet Company and Search Engine services providing company and Web Portal Business with headquarters is in South Korea.

The company services including line messenger, currently with over 200 million users from around the world. It products are online search engine and portal site and mobile messaging platform. The headquarters is in South Korea.

SK HOLDINGS is Conglomerate company with business segments Chemicals, Energy, Telecom, Construction, Shipping, Infrastructure, Semiconductors and many more. Headquarters is in South Korea.

SK Holdings Co. Ltd was renamed to SK Inc. in March-2021.

LS Electric Manufactures and Distributes Electrical Products and Power Equipment company. The headquarters is in South Korea.

They offer power devices, systems, and solutions required for transmitting and supplying to customers electricity produced from generators.

They offer automation solutions from unit machine to process control in order to effectively operate industrial sites.

Daewoo Shipbuilding & Marine Engineering is a Shipbuilding Market company. The headquarters is in South Korea.

Daewoo Shipbuilding & Marine Engineering acquired by Hanwha Ocean for 2 Trillion KRW.