During the 2005–06 season, they participated in Kalinga Cup in Odisha and reached the final, defeating Bangladeshi side Bada Jagarani Sangsad by 4–2.

[16] Eveready Association also reached the final of the 111th edition of IFA Shield but lost 1–5 to Bayern Munich II at the end.

[17][18][19] In 2006, the club was renamed as United Sports Club to attract a title sponsor and the football division owned by United Sport Football Team Private Ltd.[20] Later, veteran manager Amal Dutta was roped in as head coach in place of Belgian Philippe De Ridder.

[22] Previously the club has competed in the National Football League (India) before joining the newly formed I-League.

On Indian Transfer deadline day United SC made headline news by signing India national football team striker Sunil Chhetri until the end of the season.

Even though the team has lost a lot in terms of sponsorship money the club is still able to sign and retain their current players.

[31][32][33] In October, the club narrowly missed the opportunity of winning the Durand Cup, after a 5–4 defeat to Churchill Brothers.

[40] Schattorie won his first and only cup for the side on 20 March 2013 when Prayag United defeated East Bengal in the IFA Shield final 1–0 through a Ranti Martins goal.

[47][48] In 2013, the club won their maiden IFA Shield title by defeating East Bengal FC in the final by 1–0 margin.

[56][57][58] United SC maintained good form in domestic league, as they moved to championship round of 2022–23 I-League 2.

[75] While still sponsored and owned by Chirag Computers, United Sports Club's official colours were purple and white.

[31][87] Previously, the club used the iconic Salt Lake Stadium[88][89][90] for their home matches of the I-League[91] and the Calcutta Football League.

[92][93] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

[165] United SC's reserve team also participated in regional tournaments like All India Steel Express Football Championship.