Aquincum Institute of Technology (AIT) is a Hungarian private university, created by the businessman Gábor Bojár, founder of Graphisoft, in Budapest.
Some of these extensions are developed by Graphisoft, such as the freely available Google SketchUp, Google Earth or Cinema 4D import/export add-ons or other extensions sold separately such as Graphisoft MEP Modeler, Graphisoft EcoDesigner or Graphisoft Virtual Building Explorer; while there are a number of add-ons provided by third party vendors, such as Cigraph or Cadimage.