AutoCAD MEP - AutoCAD MEP software helps you draft, design, and document building systems.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
AutoCAD Arch - Design and document more efficiently with the AutoCAD Architecture toolset, created specifically for architects.
FreeCAD - An open-source parametric 3D modeler
AutoCAD Plant 3D - AutoCAD Plant 3D is a BIM software that lets you create, modify, and manage schematic piping and instrumentation diagrams.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming