ProStructures - ProSteel and ProConcrete - is supporting the latest ISM (Integrated Structural Modeling) interface.
Through ISM it is possible to exchange steel and concrete projects with any other solution that supports ISM, including RAM Elements, RSS, STAAD(X) and Revit Structure.
Here a vides that shows the rount-tripping between ProStructures and Revit.(remark: the video has been uploaded to YouTube.com. It is about 50 MB, please be patient).