Autodesk, Inc.

Free
You can retrieve property data while reviewing AutoCAD Plant 3D models
Free
This tool is built for mechanical, electrical, and plumbing (MEP) engineers
Free
Autodesk FBX - data exchange between several Autodesk content creation packages
Free
Simulates and modifies concrete and steel structures
Free
Adds boundry reading features to AutoCAD
Free
Used for viewing, marking up, and measuring .ipt, .iam, or .idw files
Free
Excellent program for working with AutoCAD materials. It allows users to open and view files for management, editing, and updating
Free
It allows you to analyze structures from within the Revit environment
Free
Sustainability analyzer for building designs
Free
A utility aimed at creating maps and planning infrastructure
Free
It allows converting various file formats to DWF and DWFx files
Free
Enables sharing Autodesk Inventor data with third-party apps
Free
Improve stability and performance of Autodesk 3ds Max 2014
Free
Edit,upload and view all types of 3D models
Free
Creates printable 3D projects
Free
Design 2D and 3D models for architectural design or structural engineering
Free
Aimed at creating illustrations and performing concept design
Free
Views and analyzes building construction designs
Free
Organize design data, manage documentation, and track revisions
Free
Create 360-degree 3D mechanical and industrial designs