Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Procore - Procore is the world's most widely used construction project management software. Easy to use, mobile platform with unlimited user licenses.
FreeCAD - An open-source parametric 3D modeler
PlanSwift - PlanSwift allows contractors to create accurate project estimates specific to their individual trade.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
SharpeSoft Estimator - SharpeSoft Estimator is a fast and high-performance solution that enables you to bid on more work in minimal time.