Did a google search, found some youtube clips, this looks like the sort of software I sometimes see on building expositions and think to myself that it looks like something from a few decades ago.
They seem to have a german and dutch market (at least a website in those languages), though can't say I've heard of it before in NL.
The website lists the ussual import / export options of IFC, DWG, DXF though, so if a consultant is using it, you should be able to exchange model info.
Erwin Edel, Project Lead, Leloup Architecten
www.leloup.nlArchiCAD 9-26NED FULL
Windows 10 Pro
Adobe Design Premium CS5