Expertise in
Knowledge Graphs

Web of data | information structure | accessing knowledge

Sparna is an IT consultancy specializing in the organization of knowledge, document annotation and indexing, and the opening up and reuse of data.

Sparna was founded in 2012 by Thomas Francart, an expert in ontology management systems, knowledge graphs, their modeling and feeding from organizational data sources.

Thomas has been working for 20 years with web data standards (RDF, OWL, SKOS, SPARQL, SHACL, etc.), thesauri, ontologies and knowledge graphs.

Our field of action

Our skills cover the entire spectrum of semantic data engineering projects. From initial training to implementation, including tool selection, system architecture, component integration, ontology modeling and data migration.

Read our case studies to find out more about our projects.


Semantic technologies

  • Choice of processing or triplestore tools
  • Linked Data publishing
  • Ontology modeling, thesaurus (re-)structuring

Architectures for intelligent content

  • Use of controlled vocabularies for content annotation
  • Automatic or semi-automatic content annotation
  • Enriching search engines with business vocabulary

Open Data

  • Selection of data and vocabularies for reuse
  • Support in publishing "5-star" data
  • Support in reusing open data



  • Data transfer and migration to semantic formats
  • Modeling and vocabulary selection
  • Reuse and exploitation of open data
  • Data processing and indexing in a search engine


  • Integration of tools into content processing architectures: text-mining, search engines, triplestores, thesaurus management systems
  • Maintenance and upgrades of applications based on semantic technologies
  • Java/J2EE architectures

[Our references will give you an idea of the projects Sparna has completed. Don't hesitate to contact us if you'd like more information.