Design 2D and 3D models for architectural design or structural engineering.
It is a free add-on that allows you to export your models from Autodesk Revit.
Exports 3D PDF files using the a sharing feature implemented in Revit.
3DA Systems Inc
3D PDF Converter for Revit allows you to convert 3D visualizations into PDFs.
Sefaira for Revit is a plug-in that generates an energy analysis.
Render Plus Systems, Inc.
Photo Realistic renderings from Revit with a new integrated rendering Engine.
SI Tools for Revit Structure is a Revit Structure add-in.
Bentley Systems, Incorporated
The i-model plugin for Revit allows users to save their Revit models.
CAD Technology Center
The CTC Revit Family Tools allow for easy Revit file management.
The Revit Activity Stream app connects Revit to Bluestreak.
Rafter+ -application for Revit® Architecture and Revit® Structure.
You can use Ideate Explorer for Revit extensively to manage Revit models.
Exporter for Revit plugin enables users to export Revit models as Collada files.
RushForth Tools for Revit saves hundreds of hours linking Revit to Excel.
RISA Technologies, LLC
The RISA-Revit Link provides a seamless transfer of data between RISA and Revit.
IMAGINiT Utilities for Revit is a pack with add-ins for Revit 2016.