Digital Buildings (ontology and SDK) currently being used by Google internally to manage our own buildings.

Building Device Naming Standards initiative

Computer interpretable (XML) standard to define Information Delivery Specifications for BIM (mainly used for IFC)

The Information Exchange Standard (IES) is a standard for information exchange developed within UK Government.

Uniclass2015, Uniclass2 and CAWS keynote files

IFC for Revit and Navisworks (2019+)