The 4th generation makes an appearance. Charles Frateur and Helena De Pourcq do not have children. Marie De Pourcq, Helena’s sister and also owner of the company, marries Charles Rotthier, whose son Raoul Rotthier takes the helm.
The 5th generation takes its place: Dirk Rotthier, one of the five children of Raoul Rotthier, follows in his father’s footsteps within the business.
Peter Rotthier, the youngest of four sons, strengthens the family business. In the 1980s and 90s the activities shift towards pure contracting work for NMBS (SNCB) railway, tram, metro and crane tracks.
Participation in European research projects begins. Development of innovative products and systems. The company continues to grow in both size and turnover.
When Stefaan, son of Dirk Rotthier, starts at Frateur – De Pourcq, the company welcomes its sixth generation.
With the THV Silvius, FDP is awarded the 1st PPP project Mobility in Flanders: Brabo 1