Ontotext is a leading provider of semantic technology solutions, including their OWLIM semantic database. OWLIM can handle large RDF datasets with scalable reasoning and high performance querying. It has been used successfully in cultural heritage domains by organizations like the BBC and British Museum to power semantic search and knowledge bases. OWLIM supports RDFS/OWL reasoning, spatial indexing, replication for high availability, and ranking of nodes based on semantic relationships.