이라우르기 사스키 발로이아

Iraurgi was founded in 1975 and takes its name from the Iraurgi valley, located between Azpeitia and Azkoitia. In its first seasons, the club played the provincial competitions of Gipuzkoa.

In 2005, the men's club made its debut in national competition by playing the Liga EBA. The club grew up in the league and in 2009 qualified for the first time to the promotion playoffs to LEB Plata, achieving promotion in their second attempt, in 2010.

The club finished in the last position after its debut season, but remained in the league after the existence of vacant spots. Six years later, on 15 April 2017, the club clinched the title of the 2016–17 LEB Plata and achieved promotion to LEB Oro, second division.

Previously in 2015, the women's team clinched promotion to Liga Femenina 2 but was not admitted in the league by the Spanish Basketball Federation. However, Iraurgi finally registered in the first division, where in their only season they only won two matches out of 26, being relegated to Liga Femenina 2.