리어시 켐펜조넨

The club was founded in 1943 as FC Oosterzonen from a commune within Westerlo. It started in the Belgian provincial leagues where it hovered between the various levels, most of the times playing at the 6th or 7th level of the Belgian football pyramid. In 2007, 2008 and 2009, the club won the title three seasons in a row to promote for the first time in its history to the national levels of football. In the Belgian Fourth Division, the club avoided relegation for a few seasons, before managing another promotion in the 2012–13 season into the Belgian Third Division. Following the reform of Belgian football in 2016, the team started playing in the Belgian First Amateur Division.

In May 2018, it was announced that the club would relocate to Lier, as it merged with the old board of Lierse (a club which had gone bankrupt just a few weeks before) to form a new club called Lierse Kempenzonen. The new team continued with the old logo of Lierse and started playing in the Herman Vanderpoortenstadion in Lier.