[4] In December 2011, they announced intention to turn professional and participated in 2012 I-League 2nd Division, which was then the second tier of Indian club football.

[6][7] In 2020, the club underwent a substantial change in ownership as the "United World Group" assumed control.

In 2012–13 season, Quartz FC signed I-League players like Rino Anto, Sabas Saleel, K. Noushad, Manoj Manoharan, Sherin Sam, Kamardeep Singh, Suji Kumar, J. Prasad, P.M. Britto, Salil Usman and Ajmaluddin.

Our focus will be on cementing and strengthening the foundations of the club, building an academy and developing homegrown players."

[26] In August 2023, Kerala United gained I-League 3 spot, ahead of the beginning of its inaugural season.

[27][28][29] In that tournament, the club finished in fourth place in final round play-off, missed the opportunity of qualifying to I-League 2.

The United World Group had unveiled the crest after rebranding the club which features the Great Hornbill, the official state bird of Kerala.

[37] In 2021, Kerala United FC shifted their base from Kozhikode to Malappuram district Seethi Haji Stadium, located in Edavanna, as their training ground.

[38][39] The club plays its home games at the Payyanad Stadium in nearby town called Manjeri.

[43] Upon change of ownership, team shifted its base from Kozhikode to Malappuram District which introduced a new Malabar Derby in Kerala Premier League.

[44] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.