Deportivo Quito

The club was founded on July 9, 1940, under the name Sociedad Deportiva Argentina. On October 1, 1954, the club, together with Sociedad Deportiva Aucas & Sociedad Deportiva España, founded Asociación de Fútbol No Amateur (AFNA) de Pichincha (Spanish for Non-Amateur Football Association of Pichincha). This was followed by provincial professional soccer tournaments. In accordance with AFNA bylaws, which stipulated that no team could be named after a country (except after Spain), the shareholders of Argentina got together and changed the club's name to Sociedad Deportivo Quito.

The 1950s and 1960s were fruitful decades for Deportivo Quito with the club obtaining National Championship titles in 1964 and 1968 as well as Interandean Championships (named so for inclusion of teams from both Quito and Ambato) in 1955, 1956, 1957 and 1963. The 1970s were a dark period for the club, which descended and spent several seasons in the second tier Serie B of the Ecuadorian Football League. The 1980s and 1990s brought a return measure of success for the club which came in as runners up in 1985, 1988, 1997 and qualified to participate in Copa Libertadores. 1989 also saw the transfer of one of the brightest players in Ecuadorian soccer history, Álex Aguinaga to Necaxa of Mexico.

The club would wait forty years for its third championship and after a brilliant campaign in 2008, which saw Deportivo Quito in the lead throughout the tournament, the team sealed its third star against Macará of Ambato. 2009 began fraught with problems for the club. Although it was able to hold on to its star player Luis Saritama on loan, economic problems dogged the club throughout the year. As a result, early tournament action saw the club mired in the middle half of the table. The next two phases of the tournament were a different story as the defense, solidified with the incorporation of the Ecuador National team captain Ivan Hurtado, led the club to top of the table finishes. This set up the final play-off against Deportivo Cuenca. Following a 1–1 tie in Cuenca, the two teams played an exciting game in Quito which saw back and forth action ending 3–2 in favor of Deportivo Quito. The team's fourth star was not nearly as elusive as the third. In the 2010 season Deportivo Quito earned a third-place finish after surpassing Barcelona SC in a home and home play-off. 2011 saw a dominating performance from Deportivo Quito, in which they won 26 games, tied 11 and only lost 9. Following 1–0 victories over Emelec in Quito and Guayaquil, Deportivo Quito earned its fifth star. Fans celebrated the long-awaited 2008 as well as the follow-up 2009 and 2011 championships in the popular Plaza del Teatro in Quito.