It would be awesome to have a speckle integration for solibri.
With solibri integration it opens up for clash detections, bcf manager, change of color on different 3D models, on/ off on different 3D models, grids, ifc comparing, easy sectioning and movable ifc when coordinates are different for different ifc’s.
Last time I check, Solibri only had a closed API, making it impossible for external developers to create plugins or us to make a connector for it.
Let me know if things have changed! If you have a direct connection, if you can always push the vendor to develop the connector or to give us access 
I have now emailed solibri to ask them if they can open the API for you guys in the speckle team.