On April 1, 1975 Wim Cornelissen took over his uncle's accountancy office in Ravels. Following steady growth, the firm moved to more roomy premises in Oud-Turnhout (1989) .The take-over of the accountancy firm Tackx in Turnhout (1993) led to a further growth. Gradually, the expansion in size and experience became a fact.
Since 2000
Thanks to the take-over of an office in Berlaar (2000), Ac | s started to work with analytical decision models and other computerized tools. These innovations greatly increases the efficiency and quality of service. In 2000 Ac | s moved to the current office in Ravels. The next year, two new offices were opened in Lille and Mol. After a reorganization in 2009 the Lille and Berlaar offices moved to new premises in Herentals.
Current situation
Ac | s is a medium-sized company with +70 employees in 4 locations:
