Major9
South Korean multi-entertainment company spanning music, marketing, investment, and game publishing.
Last updated September 28, 2026
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Overview
Major9 (메이저나인) is a South Korean entertainment company headquartered in Gangnam-gu, Seoul. It was founded in 2008 as Music in Entertainment by Yoon Min-soo, a member of the vocal group Vibe. In 2014, fellow Vibe member Ryu Jae-hyun joined and the company was renamed The Vibe. In 2017, Park Sung-tae and Hwang Jung-moon were brought in as CEOs and the company was rebranded as Major9. Under this new leadership, Major9 improved its production systems and grew into a leading music content company in South Korea. Since 2023, it has expanded into advertising agency services as a new business area. The company operates across several business lines: entertainment (managing artists and producing music), marketing (integrated campaign solutions for domestic and overseas game marketing), investment (investing in various content), and game publishing. Its official website lists investments in films such as "The Roundup 3," "Decision to Leave," "Confidential Assignment 2: International," "Seoul Vibe," and "Hero," as well as marketing for games like "Undawn" and "Star Becoming 2." The company also has an IP agency and IR/governance sections on its site. Major9 represents a roster of artists including Vibe (Yoon Min-soo, Ryu Jae-hyun), 2AM's Lee Chang-min, Jang Hye-jin, Ben, Kim Yeon-ji, and others. Its slogan is "Don't Be Average, Be Legendary!" The company's family sites include BY4M Studio, HIAN, and BY4M FNT. Major9 continues to position itself as a multi-entertainment company aiming for global expansion through authentic content.
History
Major9 was established in 2008 as Music in Entertainment by Yoon Min-soo, a member of the South Korean vocal group Vibe. The company initially focused on music-centered entertainment. In 2014, another Vibe member, Ryu Jae-hyun, joined the company, and it was renamed The Vibe. This period marked a consolidation of the company's identity around the Vibe brand. A major turning point came in 2017 when Park Sung-tae and Hwang Jung-moon were recruited as CEOs. Under their leadership, the company was renamed Major9 and underwent improvements to its production systems. This transformation helped Major9 grow into one of South Korea's top music content companies. Hwang Jung-moon had previously worked at Star Empire Entertainment, where he managed artists such as Jewelry, ZE:A, and Nine Muses. Since 2023, Major9 has expanded into advertising agency services, adding a new business division to complement its existing operations in entertainment, marketing, investment, and game publishing. The company's official website highlights its involvement in game marketing campaigns for titles like "Undawn" and "Star Becoming 2," as well as investments in films such as "The Roundup 3," "Decision to Leave," and "Confidential Assignment 2: International." Major9 continues to pursue global expansion through authentic content, with the slogan "Don't Be Average, Be Legendary!"
- 2023
Expands into advertising agency services.
- 2017
Park Sung-tae and Hwang Jung-moon join as CEOs; company renamed Major9.
- 2014
Ryu Jae-hyun joins; company renamed The Vibe.
- 2008
Founded as Music in Entertainment by Yoon Min-soo.
Products and positioning
Multi-entertainment company delivering authentic content with global ambitions.
Product categories. Music production and artist management · Game marketing services · Content investment · Advertising agency services · Game publishing
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