The club was founded in 1975 as NK Ježica. At the end of the 2006–07 season, Interblock came ninth and won a play-off series to remain in the Slovenian PrvaLiga, the first division of Slovenian professional football. In the
2007–08 and
2008–09 seasons, they won the
Slovenian Cup. In 2008, they won the
Slovenian Supercup, defeating the Slovenian champions
Domžale. In 2010, the club started to cooperate with
NK Bravo and the team was renamed to IB Interblock. In the next year, the senior squads of both teams merged and they competed as Bravo1 Interblock in the Second League. In February 2012, Pečečnik, who has left the club after the 2011–12 season, intended to merge their youth selections with NK Bravo Publikum, but after the revolt from parents of the youth selections, the club has remained its own entity. The senior team withdrew from all competitions in 2012 but was reestablished in the 2015–16 season. ==Honours==