The ontoprise GmbH was a provider of Semantic Web infrastructure technologies and products used to support dynamic semantic information integration and information management processes at the enterprise level. Its primary place of business was located at Karlsruhe, Germany.
The company was founded in 1999 by Prof. Dr. Juergen Angele, Prof. Dr. Stefan Decker, Prof. Dr. Rudi Studer, Prof. Dr. Steffen Staab, and Dipl.-Wirtsch.-Ing. Hans-Peter Schnurr as a spin-off from Karlsruhe University (Germany) to commercialize newly developed technologies on ontology reasoning. In 2012 the company filed for bankruptcy, see below. On July 6, 2012, Darmstadt-based semafora systems GmbH (with financial backing from Triangle Venture Capital Group) took over some products and business areas from Ontoprise, namely SemanticGuide, SemanticMiner, OntoBroker, OntoStudio, SemanticIntegrator and SemanticContentAnalytics. Commercial support for SMW+ is now offered by DIQA, a start-up founded by former Ontoprise employees.