Ontotext
Sofia
Bulgaria
Webpage:

Ontotext provides core semantic technology distinctive for its performance, scale, and compliance with standards.
Its semantic database OWLIM is proven to be the fastest and most scalable RDF(S)/OWL engine. Ontotext develops KIM - the most popular semantic annotation and search platform. WSMO Studio and wsmo4j are at the heart of the recent developments in Semantic WS and BPM.
Ontotext's technology delivers real-world applications in Life Sciences, Web Search, BI, Telecommunications, Media Monitoring, Online Recruitment, and other areas.