SimLab Collada Exporter for Revit

SimLab Collada Exporter for Revit screenshots

Exports Revit models to .dae file format, also supports Geometries exporting
SimLab Collada Exporter for Revit 3.2 : Main Window

Alternative downloads

ArchiCAD Connection for Revit 2014
The Graphisoft ArchiCAD Connection is a an add-in for Autodesk Revit programs.
Sigma Revit Integration
It makes it possible to export and import your model from Revit to Sigma.
Revit Interoperability for Showcase 2014 - Update Release 1
It improves data integrity and visual fidelity when changing models with Revit.