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 time playing at the 6th or 7th level of the Belgian football pyramid. In 2007, 2008 and 2009, the club won the title for three consecutive seasons and were promoted 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. == Current squad ==