Inter F.S. was founded in 1977 as Hora XXV, the team played charity matches with players like Amancio, Adelardo or López Ufarte, in 1979 played the first futsal championship as Interviú Hora XVV, the following years won several leagues and cups.
In 1989 the Spanish Football Federation and the Association of soccer unified their championships, creating the LNFS . Inter was one of its founding members, and the inaugural season Inter won the League and Cup double. Two years later Inter won the Futsal European Clubs Championship (today as UEFA Futsal Cup). In the following years the club maintained a good level, but the tough competition did not let them win the league again until 1996 .
From 2002 until 2005 , Inter won four consecutive league titles and became one of the dominant clubs in the national championship. In addition, between 2005-2008 the club won four consecutive Intercontinental Futsal Cup and was the first team that won all existing official titles in the sport in Europe. In recognition, the Government of Spain granted the institution Plate Gold Royal Order of Sports Merit in 2006 .
Inter won the league title for the 2013/2014 season, it's first since 2008, and ninth league title overall.