[1] Formed in 1975, College spent the majority of their existence moving between the top two divisions in Gibraltar, with second and third teams playing elsewhere in the pyramid.

During this time, they went through several variations of their name, most notably College Cosmos, before entering into a partnership with the reforming Europa in 2013, bring in extra resources as the Gibraltar Football Association joined UEFA.

However, in 2015 the partnership between the two sides ended, and while the newly independent Europa retained their place in the Gibraltar Premier Division, the Dolphins, now calling themselves College 1975, were forced to start new in the Gibraltar Second Division.

With a new management brought in under chairman Joseph Mir, a large scale rebuild of the squad took place, including the establishment of an under-23 side for the Gibraltar Intermediate League.

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