# List of pharmaceutical companies in South Korea

Tamtam tracks 26 pharmaceutical companies headquartered in South Korea. This list ranks all of them by number of employees on LinkedIn, led by LG Chem, Celltrion Inc and Samsung Biologics. Their median headcount is 503. Half of them were founded in 1967 or later. The most common headquarters are Seoul (11) and Seongnam (2).

These South Korean companies are primarily involved in pharmaceutical manufacturing and biotechnology research, with a notable presence of large established groups and mid-sized firms. Key players include LG Chem, a global chemical company with a focus on life sciences; Celltrion Inc., a global marketer of biological medicines; and Samsung Biologics, a CDMO for biologics products. Samsung Bioepis is also prominent for its biosimilar products, alongside Daewoong Pharmaceutical, which develops and commercializes pharmaceuticals globally. SK Group is involved in various sectors including pharmaceuticals and semiconductors.

A clear pattern among these companies is their strong focus on the development and manufacturing of biologics and biosimilars, indicating a specialized segment within the broader pharmaceutical industry. Many companies, such as Celltrion Inc. and Samsung Bioepis, emphasize expanding patient access to advanced therapies and innovative, high-quality products. There is also a significant concentration of headquarters in Seoul, Incheon, and Yeonsu-gu, suggesting these cities are key hubs for the pharmaceutical and biotech sectors in South Korea.

🇰🇷 South Korea · 26 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [LG Chem](https://www.tamtam.ai/c/lg-chem) (lgchem.com)<br>A global chemical company specializing in petrochemicals, advanced materials, and life sciences, committed to carbon-neutral growth and net-zero emissions by 2050 | Chemical Manufacturing | 🇰🇷 Seoul | 5,545 | 1947 |
| 2 | [Celltrion Inc](https://www.tamtam.ai/c/celltrion-inc) (celltrion.com)<br>Global marketer of biological medicines, including the world's first biosimilar monoclonal antibody, to expand patient access to advanced therapies worldwide | Pharmaceutical Manufacturing | 🇰🇷 Incheon | 2,628 | 1999 |
| 3 | [Samsung Biologics](https://www.tamtam.ai/c/samsung-biologics) (samsungbiologics.com)<br>Fully integrated CDMO providing contract development and manufacturing services for biologics products with largest capacity, fastest throughput, and proven regulatory approvals globally | Pharmaceutical Manufacturing | 🇰🇷 Yeonsu-gu | 2,450 | 2011 |
| 4 | [SK Group](https://www.tamtam.ai/c/sk-group) (eng.sk.com)<br>Investment and development in manufacturing, EV batteries, hydrogen energy, pharmaceuticals, semiconductors, focusing on growth, governance, and social impact. | Manufacturing | 🇰🇷 Seoul | 2,368 | 1953 |
| 5 | [Samsung Bioepis](https://www.tamtam.ai/c/samsung-bioepis) (samsungbioepis.com)<br>A biopharmaceutical company founded in 2012, dedicated to making healthcare accessible through innovative, high-quality biosimilar products in various therapeutic areas | Pharmaceutical Manufacturing | 🇰🇷 Yeonsu-gu | 1,574 | 2012 |
| 6 | [Daewoong Pharmaceutical](https://www.tamtam.ai/c/daewoong-pharmaceutical) (daewoong.co.kr)<br>A South Korean pharmaceutical company established in 1945, develops, manufactures, and commercializes pharmaceuticals globally, with a focus on new drug development and international collaborations | Pharmaceutical Manufacturing | 🇰🇷 Seoul | 1,158 | 1945 |
| 7 | [Celltrion Inc.](https://www.tamtam.ai/c/celltrion-inc-incheon) (celltrion.com)<br>Innovative Korean pharmaceutical company pioneering antibody biosimilars and small molecule pharmaceuticals, focusing on global growth and novel healthcare platforms | Biotechnology Research | 🇰🇷 Incheon | 1,011 |  |
| 8 | [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 |
| 9 | [LOTTE Biologics](https://www.tamtam.ai/c/lotte-biologics) (lottebiologics.com)<br>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 | Pharmaceutical Manufacturing | 🇰🇷 Seoul | 611 | 2022 |
| 10 | [종근당 CKD Pharmaceuticals](https://www.tamtam.ai/c/ckd-pharmaceuticals) (ckdpharm.com)<br>Specializing in innovative pharmaceutical research and development, focusing on first-in-class and unmet needs medications to improve quality of life and global health | Pharmaceutical Manufacturing | 🇰🇷 Seoul | 536 | 1941 |
| 11 | [CJ Corporation](https://www.tamtam.ai/c/cj-corporation) (cj.net)<br>Global lifestyle company with divisions in food, biotechnology, logistics, retail, and entertainment promoting health, happiness, convenience worldwide. | Food and Beverage Services | 🇰🇷 Jung-gu | 534 |  |
| 12 | [Seegene Inc.](https://www.tamtam.ai/c/seegene-inc) (seegene.com)<br>A global leader in molecular diagnostics, developing innovative tests and equipment to improve early diagnosis of ailments and quality of life worldwide | Biotechnology Research | 🇰🇷 Seoul | 504 | 2000 |
| 13 | [Samyang Group](https://www.tamtam.ai/c/samyang-group) (samyang.com)<br>A diversified company founded in 1924, specializing in chemicals, food, biopharmaceuticals, and packaging, focusing on innovation and global expansion | Manufacturing | 🇰🇷 Seoul | 503 | 1924 |
| 14 | [Hanmi Pharmaceuticals](https://www.tamtam.ai/c/hanmi-pharmaceuticals) (hanmi.co.kr)<br>A leading pharmaceutical company based in Seoul, South Korea, renowned for developing and selling over 200 products globally, with a strong focus on R&D investments | Pharmaceutical Manufacturing | 🇰🇷 Seoul | 500 |  |
| 15 | [SK chemicals](https://www.tamtam.ai/c/sk-chemicals) (skchemicals.com)<br>The company manufactures chemical products including PETG and PET resins for various industries, as well as life science products like anti-cancer agents and vaccines | Plastics Manufacturing | 🇰🇷 Seongnam-Si | 491 |  |
| 16 | [HANDOK](https://www.tamtam.ai/c/handok) (handok.co.kr)<br>A leading pharmaceutical/healthcare innovator providing diverse healthcare solutions (prescription drugs, medical devices, in vitro diagnostics) with a focus on R&D and global expansion | Pharmaceutical Manufacturing | 🇰🇷 Seoul | 374 | 1954 |
| 17 | [SD BIOSENSOR INC](https://www.tamtam.ai/c/sd-biosensor-inc) (sdbiosensor.com)<br>The company is dedicated to enhancing human health through the creation of groundbreaking products, prioritizing sustainable growth and community well-being | Medical Equipment Manufacturing | 🇰🇷 Suwon-Si | 365 | 2010 |
| 18 | [International Vaccine Institute (IVI)](https://www.tamtam.ai/c/international-vaccine-institute-ivi) (ivi.int)<br>A nonprofit organization focused on discovering, developing, and delivering safe and affordable vaccines to improve the health of vulnerable populations in developing countries | Non-profit Organizations | 🇰🇷 Seoul | 355 | 1997 |
| 19 | [Dong-A Pharmaceutical Co.,Ltd](https://www.tamtam.ai/c/dong-a-pharmaceutical-co-ltd) (donga.co.kr)<br>Leading South Korean pharmaceutical company specializing in developing, manufacturing, and distributing innovative healthcare products, including medicines, energy drinks, medical equipment, and bio-technology solutions | Pharmaceutical Manufacturing | 🇰🇷 Seoul | 354 | 1932 |
| 20 | [(주)보령](https://www.tamtam.ai/c/company-90690438) (boryung.co.kr)<br>Specializing in manufacturing and selling pharmaceutical products | Pharmaceutical Manufacturing | 🇰🇷 Seoul | 327 | 1963 |
| 21 | [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 |
| 22 | [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 |
| 23 | [Yuyu Pharma](https://www.tamtam.ai/c/yuyu-pharma) (yuyu.co.kr)<br>A healthcare company in Korea, publicly traded since 1975, manufacturing, distributing, and marketing pharmaceutical products, medical devices, and medical foods | Pharmaceutical Manufacturing | 🇰🇷 Seoul | 208 | 1941 |
| 24 | [QuantaMatrix](https://www.tamtam.ai/c/quantamatrix) (quantamatrix.com)<br>Developing advanced diagnostic technologies focused on accelerating patient result times to improve healthcare outcomes and save lives. | Medical Equipment Manufacturing | 🇰🇷 Seoul | 73 | 2010 |
| 25 | [Caregen Co. Ltd](https://www.tamtam.ai/c/caregen-co-ltd) (caregen.com)<br>Global biotechnology company specializing in peptide research and development, offering innovative peptide-based products across various industries for health and beauty solutions worldwide | Biotechnology Research | 🇰🇷 Anyang-si | 31 | 2001 |
| 26 | [SFC Co., Ltd.](https://www.tamtam.ai/c/sfc-co-ltd) (sfcprobes.com)<br>A South Korean company specializing in OLED raw materials, fluorescent dyes, oligonucleotides, and oligo API CDMO services for molecular diagnostics | Biotechnology Research | 🇰🇷 Cheonju-si | 29 |  |

## 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.

## More company lists in South Korea

- [The largest companies in South Korea](https://www.tamtam.ai/l/largest-companies-south-korea) (880)
- [Multinational companies in South Korea](https://www.tamtam.ai/l/multinational-companies-south-korea) (299)
- [Companies with in-house R&D in South Korea](https://www.tamtam.ai/l/r-and-d-companies-south-korea) (229)
- [Manufacturers in South Korea](https://www.tamtam.ai/l/manufacturers-south-korea) (172)
- [Publicly traded companies in South Korea](https://www.tamtam.ai/l/publicly-traded-companies-south-korea) (122)
- [Companies with a mobile app in South Korea](https://www.tamtam.ai/l/companies-with-mobile-app-south-korea) (116)
- [IT Services and IT Consulting companies in South Korea](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-south-korea) (112)
- [Hardware manufacturers in South Korea](https://www.tamtam.ai/l/hardware-companies-south-korea) (98)
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- [Higher Education companies in South Korea](https://www.tamtam.ai/l/higher-education-companies-south-korea) (65)
- [Critical infrastructure operators in South Korea](https://www.tamtam.ai/l/critical-infrastructure-operators-south-korea) (60)
- [Retail chains in South Korea](https://www.tamtam.ai/l/retail-chains-south-korea) (59)
- [AI companies in South Korea](https://www.tamtam.ai/l/ai-companies-south-korea) (55)
- [Computer Games companies in South Korea](https://www.tamtam.ai/l/computer-games-companies-south-korea) (53)
- [Public sector organisations in South Korea](https://www.tamtam.ai/l/public-sector-organisations-south-korea) (48)
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- [Financial Services companies in South Korea](https://www.tamtam.ai/l/financial-services-companies-south-korea) (46)
- [Research institutes in South Korea](https://www.tamtam.ai/l/research-institutes-south-korea) (43)
- [Automotive manufacturers and suppliers in South Korea](https://www.tamtam.ai/l/automotive-companies-south-korea) (42)
- [E-commerce companies in South Korea](https://www.tamtam.ai/l/ecommerce-companies-south-korea) (42)
- [Electronics and semiconductor companies in South Korea](https://www.tamtam.ai/l/electronics-companies-south-korea) (38)
- [Chemical companies in South Korea](https://www.tamtam.ai/l/chemical-companies-south-korea) (29)

## The same list elsewhere

- [Pharmaceutical companies in the world](https://www.tamtam.ai/l/pharmaceutical-companies-in-the-world) (5,664)
- [Pharmaceutical companies in Asia](https://www.tamtam.ai/l/pharmaceutical-companies-in-asia) (770)

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Source: https://www.tamtam.ai/l/pharmaceutical-companies-south-korea