South Korea is asovereign state inEast Asia, constituting the southern part of theKorean Peninsula.^[1]Highly urbanized at 92%,^[2] South Koreans lead a distinctive urban lifestyle; half of them live inhigh-rises^[3] concentrated in theSeoul Capital Area with 25 million residents^[4] and the world's sixth-leadingglobal city^[5] with thefourth-largest economy^[6] and seventh-mostsustainable city in the world.^[7]

Driven by ahighly educated and skilled workforce, it has the world'seighth-highest median household income, the highest in Asia, and its singles in particularearn more than allG7 nations. Globally, it ranks highly inpersonal safety,^[8]job security, and healthcare quality, with the world'sthird-highesthealth adjusted life expectancy and fourth-most efficient healthcare system.^[9] It is the world'slargest spender on R&D per GDP, leading theOECD in graduates in science and engineering^[10] and ranking third in theYouthWellbeing Index.^[11] Home ofSamsung,POSCO,LG andHyundai-Kia, South Korea was named the world's most innovative country in theBloomberg Innovation Index,^[12] ranking first inbusiness R&D intensity andpatents filed per GDP. As of 2014, it has the world'sfastest Internet speed andhighest smartphone ownership, ranking first inICT Development,e-Government^[13] and4G LTE coverage.

For further information on the types of business entities in this country and their abbreviations, see "Business entities in South Korea".

This list shows firms in theFortune Global 500, which ranks firms by total revenues reported before 01 February, 2025.^[14] Only the top five firms (if available) are included as a sample.

Rank	Image	Name	2024 Revenues (USD $M)	Employees	Notes
31		Samsung	$198,257	267,860	Multinational electronics conglomerate, and one of the world's largest information technology firms. Closely branded subsidiaries includeSamsung Electronics,Samsung C&T Corporation,Samsung Electro-Mechanics,Samsung Heavy Industries,Samsung Life Insurance, andSamsung Fire & Marine Insurance.
73		Hyundai Motor Company	$124,577	73,502	Third-largest automotive manufacturer, including itsKia Motors andGenesis Motors brand divisions, and regional subsidiariesHyundai Motor India Limited,Beijing Hyundai,Hyundai Motor America, andHyundai Motor Europe GmbH.
100		SK Group	$101,969	114,950	Diversified conglomerate with more than 95 subsidiaries and affiliates, includingSK Innovation (Energy),SK Telecom (telecommunications),SK Hynix (semiconductors), andSK C&C (consulting).
162		Kia	$76,419	52,871	Multinational automobile manufacturer, 34% owned byHyundai Motor
201		Korea Electric Power Corporation	$66,977	48,696	Korea's largest electrical utility, majority-owned by the Korean state. The firm provides for generation, distribution, and major development projects.

This list includes notablecompanies with primaryheadquarters located in the country. The industry and sector follow theIndustry Classification Benchmark taxonomy. Organizations which have ceased operations are included and noted as defunct.

• 
  Gangnam Commercial Area.
• 
  Hyundai automotive assembly line.
• 
  Hanjin Spain passing Hamburg.
• 
  Hyundai Heavy Industries shipyard.

• Chaebeol
• Economy of South Korea
• Education in South Korea
• KOSDAQ
• KOSPI
• Mobile phone industry in South Korea
• Green Optics Co., Ltd.
• Small and medium-sized enterprises in South Korea

• Companies of South Korea
• Lists of companies by country
• Lists of companies of South Korea

• Wikipedia articles incorporating text from the World Factbook
• CS1 uses Korean-language script (ko)
• CS1 maint: archived copy as title
• Articles with short description
• Short description is different from Wikidata