2007–2011: Founding and beginning Jellyfish Entertainment was founded on August 17, 2007 in
Seoul by composer and producer Hwang Se-jun. The first artist to sign under the company was the established ballad singer
Sung Si-kyung, who released the single "Parting Once Again" (). One year later, the company signed Lisa and Park Hak-ki. In November 2008, singer
Park Hyo-shin signed to the agency and was featured on the album
Hwang Project Vol.1 Welcome To The Fantastic World. The following year,
Super Star K contestant
Seo In-guk and Altair (
Lee Ji-hoon) later joined Jellyfish Entertainment. In December 2010, Jellyfish Entertainment artists collaborated for the
Jelly Christmas holiday album project with the lead single "Christmas Time". In December 2011 Sung Si-kyung,
Brian Joo, Seo In-guk, Park Hak-ki, Park Jang-hyun and Hwang Project collaborated again for
Jelly Christmas with the single "Christmas for All"
. 2012–2015: VIXX, company acquisition and expansion into acting In April 2012, Jellyfish Entertainment revealed lineup trainees of their upcoming boy group and formed the boy group on
MyDOL, a competition survival show that aired on
Mnet. The winners debuted as a member of
VIXX on May 24, 2012. In June, Lee Seok-hoon of
SG Wannabe released the digital single "The Beginning of Love" (Y.Bird from Jellyfish Island with Lee Seok Hoon) as part of Hwang Se-jun's
Y.Bird from Jellyfish Island project. On September 12, Jellyfish Entertainment held their first live concert
Jellyfish Live at Tokyo's Zepp Diver City in Japan, and in December, both Park Hyo-shin and Sung Si-kyung held concert performances in Seoul. Jellyfish Entertainment's artists collaborated again for the
Jelly Christmas 2012 Heart Project with the single "Because It's Christmas" with the proceeds from the project donated to
The Salvation Army Korea. In February 2013, the
Y.Bird from Jellyfish Island project released the digital singles "I Can't Live Because of You" by Seo In-guk featuring
Verbal Jint (
Y.BIRD from Jellyfish Island With Seo In Guk) in February and "Girl's Why?" by VIXX and indie duo OKDAL (Y.BIRD from Jellyfish with VIXX & OKDAL) in October. In December, 19% of Jellyfish's shares were acquired by their distributor,
CJ E&M and joined the CJ E&M label system as an independent label. In July 2015,
K-pop Star 4 TOP 6 contestant
Park Yoon-ha signed under the agency. following month,
VIXX LR was formed as the sub-unit of VIXX, composed of rapper
Ravi and vocalist
Leo. In August 2015, Jellyfish acquired actor management The Good Entertainment to expansions their business. The
Jelly Christmas 2015 single was released on December 15 with the song "Love In The Air" ().
2016–2018: First girl group and Jelly Box In the first half of 2016, Jellyfish trainees Kim Na-young,
Kang Mi-na and
Kim Se-jeong represented Jellyfish Entertainment in the television survival show
Produce 101. Kang Mi-na and Kim Se-jeong winning the survival show debuted as part of the lineup of the year-long project girl group
I.O.I, while still under Jellyfish Entertainment. It was confirmed that following their promotions as part of I.O.I, the trainees would officially debut as members of the agency's first girl group. On June 3, Jellyfish Entertainment launch their new music channel
Jelly Box.
Jelly Box is similar to Jellyfish Entertainment's previous project
Y.Bird from Jellyfish Island and it will showcase Jellyfish Entertainment artists and producers and include collaborations with artists outside of the label. On June 28, Jellyfish debuted the nine-member girl group
Gugudan. In October, Jellyfish Entertainment announced that former
Dal Shabet member
Jiyul, signed a contract with the agency in order to pursue her career as an actress. In November, former
Jewelry member
Kim Ye-won, joined Jellyfish Entertainment as an actress. On December 13, Jellyfish Entertainment released their
Jelly Christmas 2016 single album with the song, "Falling" (), as part of their digital music channel project
Jelly Box. The Jellyfish artists participating were
Seo In-guk,
VIXX,
Gugudan,
Park Yoon-ha,
Park Jung-ah, Kim Gyu-sun,
Kim Ye-won and
Jiyul. In April 2017, agency trainee Yun Hee-seok represented Jellyfish Entertainment in the second season of the television survival show
Produce 101. On April 10, actress Cho Hye-jung joined Jellyfish Entertainment. In June 2017, actress
Jung So-min joined Jellyfish Entertainment. In August 2017, Jellyfish's 32% shares was acquired by CJ E&M, which previously acquired 19% of Jellyfish's shares in 2013 and effectively becoming Jellyfish Entertainment largest shareholder after having 51%. Jellyfish debuted the first sub-unit of Gugudan, Gugudan 5959, composed of Hyeyeon and Mina. On August 16, indie soloist
Jang Hye-jin joined Jellyfish Entertainment.
2019–present: Second boy group, Project group, continue signed new talents On January 9, 2019, Jellyfish debuted their seven-member boy group
Verivery. On May 3, Jellyfish sent their trainee Kim Min-kyu and Choi Jun-seong to the fourth season of the television survival show
Produce X 101. The two trainee failed to joined the line-up of the winner group later revealed to be named X1, with Choi were eliminated in place 46th and Kim place 12th in final round. Choi later left the agency, while Kim continue with the agency to pursue his acting career. On February 4, 2020, it was announced that
Lim Seul-ong signed under the label. On March 6, it was revealed that as of June 6, 2019, CJ E&M had sold 40,396 shares of Jellyfish Entertainment for 1.9 billion won. The stake was acquired by Hwang Se-jun, the CEO of the company, increasing his stake from 51% to 73.53%. In March 2020, Musical actress Kim Young-joo signed with Jellyfish. Later renewed her contract again in June 2023. From May to July, Gugudan member
Sally participated in the Chinese television survival show
Produce Camp 2020. She placed sixth and made into the final group,
BonBon Girls 303. On December 30, Jellyfish Entertainment announced that Gugudan would end all group activities and officially disband on December 31, 2020. On March 31, 2021, Mimi, Soyee, and Nayoung announced that they would depart from Jellyfish after their contracts have ended. On April 7, Haebin and Hyeyeon announced their departures from Jellyfish. On April 30,
Hana announced her departure from Jellyfish. On May 11,
Sejeong renewed her contract with Jellyfish Entertainment as a solo artist and actress. In June 2021, Rookie actor Tak Yi-on signed with Jellyfish. On August 6, 2021 Jellyfish Entertainment trainees Kim Da-yeon and Sakamoto Shihona competing in the television survival show
Girls Planet 999. On October 22, Dayeon successfully placed 4th in the final lineup of the show's debut group,
Kep1er. The group's original contract lasted 2 years and 6 months, with it set to expire in July 2024. A head of Kep1er's contract expired, Dayeon decided to renew her contracts to extend activities with Kep1er. In September 2021, Rookie actor Ryu Won-woo signed with Jellyfish. In January 2022, Indie artist Son Chamchi signed contract with the agency. On December 30, 2022, Jellyfish Entertainment trainees Park Gunwook, Jang Yeojun, Park Hyunbeen and Han Yuseop were announced to be competing in the Mnet survival program,
Boys Planet. On April 20, 2023, Gunwook successfully placed 5th in the final lineup of the show's resulting group,
Zerobaseone (ZB1) and will be active for two years and six months. The other three trainees who failed to joined the lineup of the winner group was secretly left from Jellyfish. On August 3, 2023, Jellyfish announced their first project group and third overall boy group,
Evnne, composed of
Boys Planet contestants who were eliminated from debuting in the final lineup. These contestants were Park Hanbin, Terazono Keita, Yoo Seungeon, Lee Jeonghyeon, Ji Yunseo, Mun Junghyun, and Park Jihoo. In September 2024, Model and actor Kim Dong-gyu signed with Jellyfish. In December 2024, it was announced that Jellyfish will signed contract with Top 5 winners of TV Chosun's
University Song Festival: Lee Jae-yeop, The Tissue, Pentacles, Choi Yeo-won and Hwang Geon-woo. In April 2025, Rookie actress Lee Soo-jung signed with Jellyfish. In June 2025, Verivery members Dongheon, Gyehyeon and Kangmin participating in the
Mnet survival show
Boys II Planet. On March 23, 2026, Jellyfish announced
Kim Se-jeong's departure from the company after 10 years. ==Artists==