Ontoprise GmbH

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ontoprise GmbH
Founded1999 Edit this on Wikidata
FounderJürgen Angele, Stefan Decker, Hans-Peter Schnurr, Steffen Staab, Rudi Studer
Defunct2012 Edit this on Wikidata
Number of employees
48 (2009)

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 Ontoprise had to file for bankruptcy, see below.[1] On July 6, 2012, Darmstadt-based semafora systems GmbH (with financial backing from Triangle Venture Capital Group) acquired for an undisclosed purchase price the majority of products and business areas from Ontoprise, namely SemanticXpress, SemanticGuide, SemanticMiner, OntoBroker, OntoStudio, SemanticIntegrator and SemanticContentAnalytics.[2][3][circular reference] As a consequence nearly all Ontoprise employees left the company. Commercial support for SMW+ is now offered by DIQA, a start-up founded by former Ontoprise employees.[4]

Product portfolio[edit]

  • OntoStudio (formerly OntoEdit): modeling environment to create and maintain ontologies.
  • OntoBroker: fast Semantic Web-Middleware for inferencing and managing ontologies. It supports the W3C Semantic Web recommendations: OWL, RDF, RDFS, SPARQL, RIF, and ObjectLogic (the successor of F-logic).
  • SemanticMiner: ontology based enterprise search.
  • SemanticMiner for SharePoint: Microsoft SharePoint Server ontology search extension
  • SemanticGuide: expert system for field service
  • SMW+: semantic enterprise wiki for professional users



  1. ^ "Ontoprise stellt Insolvenzantrag" [Ontoprise starts insolvency proceedings] (in German). econo. 3 May 2012. Retrieved 30 July 2012.
  2. ^ "semafora takes over Ontoprise GmbH business units". semafora. 6 July 2012. Retrieved 30 July 2012.
  3. ^ "Honi soit qui mal y pense".
  4. ^ Michael Erdmann (25 July 2012). "SMW+ is dead, long live SMW+". MediaWiki users mailing list. Retrieved 30 July 2012.

Further reading[edit]

  • Use Case: How Ontologies and Rules Help to Advance Automobile Development "W3C Semantic Web Use Cases and Case Studies". June 2008.
  • On The Cusp: A Global Review of the Semantic Web Industry. A Global Review of the Industry and Leading Vendors. David Provost. September 2008.

External links[edit]