Design Data CAD software for structural steel detailing. http://www.sds2.com/

RAM International Software for building analysis, design, and drafting in structural engineering. http://www.ramint.com/

Construsoft Xsteel and PowerFrame software for steel stucture modelling and analysis, and PowerPlate FEM for analysis of plate and grid structures. http://www.construsoft.com

DSC CAD/CAM-Technologien GmbH Offers the HyperSteel structural application for AutoCAD, and the SDDP steel design and detailing program for CADDS, as well as custom development. http://www.dsc.de/

GTS CADBuild Supplies and supports structural engineering and geotechnical software such as STRAP, QUIKSOFT and GEO4. http://www.gtscad.com/

Steel-Projects France Supplies an integrated system for the steel construction process for detailers and steel fabricators. http://www.steel-projects.fr/

In Re Ltd. Real Steel CAD system for structural engineering aimed at 3D modeling, analysis and design, connection detailing, and automatic generation of drawings and reports. http://www.realsteel.lt/en/

Vector Depot Online repository of symbols, hatches, plug-ins and other VectorWorks resources http://www.vectordepot.com