2023/1/26 15:12
[2025] List of Advertising and Digital Marketing Agencies in South Korea.
To succeed in South Korea, you need to master the country’s own platforms—Naver Search, KakaoTalk, G-Market, Coupang—and work with an agency that truly understands the local landscape. Simply transplanting a Japanese playbook won’t go far; embracing Korea-specific tactics, such as influencer marketing via Naver Blog, is the faster route to results.
In this article, you’ll find a ranked lineup of top Korean advertising and digital-marketing agencies, from Samsung-affiliated Cheil Worldwide to fast-rising independents. We outline each firm’s strengths and global reach so you can choose the perfect partner for your Korean market entry or inbound marketing strategy.
We also partner with seasoned Korean experts to deliver end-to-end support for entering the Korean market. If you need any help with international expansion, feel free to reach out. (Contact us here.)
About mainstream services and social media in South Korea
In Korea, different platforms are used compared to Japan, such as Naver as a search engine, Kakao as a communication tool, and G-Market or Coupang for e-commerce. There are also influencer marketing strategies that utilize Naver blogs.
To succeed in marketing in Korea or targeting Korean tourists, it is essential to collaborate with advertising agencies or marketing agencies that are familiar with the Korean market. For example, you can check the search results for "Japan travel" in Korean on Naver.
Cheil Worldwide（제일기획） - Samsung Group
Cheil Worldwide is the largest advertising agency in South Korea and is under the Samsung Group. It was established in 1973.
In 1988, Cheil Worldwide established its first overseas office in Tokyo, and four years later, it also opened an office in the United States.
Currently, Cheil Worldwide has 53 offices and 9 partners in 45 countries. Of its approximately 6,500 employees, 20% work in South Korea and 80% work overseas.
Cheil Worldwide Link
Website：https://cheil.com/hq
Linkedin：https://www.linkedin.com/company/cheil-worldwide-inc-/
Facebook：https://www.facebook.com/GlobalCheilWorldwide/
Twitter：https://twitter.com/Cheil_Worldwide
Wikipedia：https://en.wikipedia.org/wiki/Cheil_Worldwide
Innocean（제일기획） - HYUNDAI
Innocean is the second largest advertising agency in South Korea, established in 2005, and has offices in 33 countries.
In 2005, it established its first overseas office in New Delhi, India, and in 2007, it established its European headquarters in Frankfurt, Germany. In 2008, it also established its US headquarters in California.
However, as of now, Innocean does not have any branch offices in Japan.
Website：http://www.innocean.com/ww-en/
Linkedin：https://www.linkedin.com/company/innocean/
Facebook：https://www.facebook.com/innocean
Instagram：https://www.instagram.com/innoceanworldwideofficial/
YouTube：https://www.youtube.com/user/innoceancreative
HSAD - LG Group
HSAD is the third-largest advertising agency in South Korea and a global agency with 33 offices in 32 countries worldwide. As of now, HSAD does not have any branch offices in Japan.
Originally named LG AD, it was renamed HSAD in 2008.
Website：https://www.hsad.co.kr/en/00_main/index.asp
Linkedin：https://www.linkedin.com/company/hsad/
Facebook：https://www.facebook.com/3Difference/
Daehong Communications（대홍기획） - Lotte Group
Daehong Communications is a major advertising agency in South Korea, established in 1982, and boasts the fourth highest revenue among advertising agencies in South Korea. It has offices in three countries (South Korea, Vietnam, and Indonesia) and a partner network in five other countries.
SM C&C（에스엠컬처앤콘텐츠） - SM Entertainment
SM C&C is the fifth largest advertising agency in South Korea.
https://www.smcultureandcontents.com/ko/main/main.asp
FSN（퓨쳐스트림 네트워크）
FSN is the sixth largest advertising agency in South Korea, with 1,400 employees in seven countries (South Korea, China, Taiwan, Vietnam, Thailand, Singapore and Indonesia).
SK Planet - SK Telecom
SK Planet is an advertising agency. It was founded in 2011 as a spin-off from SK Telecom (South Korea's largest telecommunications company).
https://www.skplanet.com/eng/ma
[Extra] Foreign advertising agencies in South Korea.
TBWA Korea（TBWA 코리아）
TBWA Korea is the South Korean branch of the US-based TWBA (Omnicom Group: 2nd largest in the world).
McCCAN Korea（맥켄에릭슨 & 유니버설맥켄）
McCANN Korea is the Korean branch of the McCANN Group, which has offices in 120 countries.
Publicis Groupe（레오버넷）
Publicis Groupe is the third largest advertising agency in the world, based in France.
http://publicisgroupe.co.kr/index.do
Reference：https://static.ad.co.kr/data/lit/j11/54/0e/b2/bf/183999.pdf
If you are interested APAC digital marketing agency, please feel free to contact us.
https://codigital.co.jp/en/contact
For other countries, please refer
[2025] List of advertising and digital marketing agencies in China
[2025]List of Advertising Agencies & Digital Marketing Agencies in Taiwan
[2025] List of Advertising Agencies & Digital Marketing Agencies in Vietnam
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