Founded in 1980 as AD Zaldiaran, they are the second reserve team of Deportivo Alavés, and play in the Tercera Federación – Group 4.

AD Zaldiaran was founded in 1980 and throughout most of their history was an independent club, but linked to the Alavés grassroots fields.

[1] Three years later, in 2000, the team win the Preferente and achieve promotion to Tercera División.

[2] After their promotion, Zaldiaran were fully incorporated to Deportivo Alavés' structure, being renamed to Deportivo Alavés C.[3] The side competed in the fourth tier for three back-to-back seasons until 2002–03, when they suffered relegation.

San Ignacio continued operating independently and have since returned to the Tercera level twice (on each occasion their opponents included the other reserve side of Alavés,[4] with both teams being relegated in 2008–09).