RDFox is a main-memory, highly scalable, centralised RDF store which leverages the properties of modern computer architecture and C++ to deliver high performance parallel datalog reasoning and SPARQL query answering. Its speed provides a richer user experience which is well suited to responsive applications. It is available on Mac, Windows, and Linux. metaphactory has been validated on RDFox.
RDFox is developed by Oxford Semantic Technologies, a spin out from the University of Oxford backed by leading investors including Samsung Ventures and Oxford Sciences Innovation.