贝拉萨特吉

The club was founded on 18 September 1975 during a meeting held in Alfredo San Miguel's house in Berazategui. The club's first president was Giberto Martín. The orange colour that identifies the club was inspired by the Netherlands national football team which was a sensation during the 1974 FIFA World Cup. In March 1976 the club affiliated to the Argentine Football Association (AFA), making its debut in Primera D that same year. In its first season playing official matches, Berazategui finished second to Defensores de Cambaceres (that would win the champion) and therefore promoted to the upper level division, the Primera C.

After nine seasons in that division, Berazategui obtained one of the six available places to participate in the Primera B Metropolitana, following a restructuring of the Argentine football league system, even though the squad had finished the 1985 season fighting to keep its place in the division and almost returning to Primera D. Under coach Roberto Santiago era, the club signed new players including Hugo Commidari from Club Atlético Temperley, Marcelo Grasso from Sportivo Dock Sud and Marcelo Scrignar from Club Atlético Villa San Carlos.

After two promotions, Berazategui came close to promotion again in the 1988–89 season, finally winning its first championship in 1989–90. That season was obtained by Berazategui with a record of 44 matches without being defeated. The squad was coached by Juan Carlos "Lobo" Zerrillo, which formed a team with experienced players mostly, such as the goalkeeper Sergio García, defenders Ramón Peloso, Héctor Pereyra and Víctor Chaile, midfielders Víctor Martínez (who was also the top scorer with 15 goals) and forwards Daniel Gauto and Daniel Lettieri.

The southern team played a total of 36 matches, winning 17, and drawing the remaining 19. The team scored 61 goals and only conceded 20.

The second title won by Berazategui was the Primera C 2006–07 Apertura, which allowed the team to play a series for promoting to Primera C Metropolitana in the 2007–08 season after winning the playoffs.