RedTopTraining Ltd. is a Canadian software development company that specializes in the development of productivity tools for Autodesk based products. An accoumplished staff brings over 15 years of development experience in c#.Net, VB.Net, VBA, LISP and others within the Autodesk development environment. We have created professional Addins for AutoCAD, Civil 3D, Plant 3D, Revit, Navisworks and Inventor in the past.