Maxwell Plugin for Revit Architecture provides Maxwell Render features.
GlobalCAD Consultants Limited
GlobalCAD Architecture is the integrated architectural and land planning add-on.
It is a very good solution for structural engineering firms.
Revit Extensions extend the capabilities of Autodesk Revit.
Design 2D and 3D models for architectural design or structural engineering.
The Graphisoft ArchiCAD Connection is a an add-in for Autodesk Revit programs.
Export a 3D view from Autodesk Revit Architecture 2011/2012 to a EPix file.
Rafter+ -application for Revit® Architecture and Revit® Structure.
This download is the latest update for Autodesk Revit Structure 2012 software.
ClarkDietrich Building Systems
Was developed for Architects to run inside Revit Structural 2012.
It provides bidirectional integration with Revit Architecture and Structure.
AGA CAD Ltd.
The extenstion to import MS Excel spreadsheets to Autodesk Revit Architecture.
IFC Exporter for Revit
This is the .NET code used by the Revit 2012 family of products.
This is a plug-in that allows to export in .atl file format from Revit 2012.