About Us

The driving force behind everything we do is to put enterprises back in control of their knowledge assets and to help them run, grow and evolve their business efficiently.

By transforming the way organizations identify meaning across diverse datasets and massive amounts of unstructured information, we help them see a much bigger picture.

We know how to combine semantic graph databases with text mining and machine learning. This brings data and content together in big knowledge graphs to allow better interlinking, interpreting, analyzing and reuse of business critical data.

Leadership and Team


Reasons to be Part of Ontotext

We are passionate about the technologies and the solutions we create.

We serve some of the best-known organizations creating technological solutions considered the present & future of knowledge management systems.

We take pride in our company dynamics.

This translates to more autonomy and less corporatism. While we believe that vertical hierarchy is absolutely necessary when it comes to taking responsibility, our informal structure takes a more horizontal shape. Your voice is heard.

We support each other.

Regardless of your previous experience, we want you to feel comfortable in a new environment. Our on-boarding program includes mentoring and spending time in relevant departments.

We love learning new things.

We are always on the lookout for improving our work ethics, internal processes and the technologies we develop. We believe that, in the end, this is what it takes to bring value to our customers.


  • Ann & Robert H. Lurie Children's Hospital of Chicago is a nationally ranked pediatric acute care children's hospital located in Chicago, Illinois. It provides superior pediatric care in a setting that offers the latest benefits and innovations in medical technology, research and family-friendly design and is the largest pediatric provider in the region.

  • AstraZeneca is a top-5 global pharmaceutical company that is on the cutting edge of using data to help find new solutions to the world’s health issues. Ontotext has worked with AZ on a number of successful projects, including data integration of clinical studies, analysis and retrieval of clinical trial reports as well as integration of biomedical databases for identification of drug targets and interactions. AZ is also a long-term research partner of Ontotext in the EU research project LarKC.

  • NuMedii is a biotechnological company whose predictive Big Data approach aims to discover and develop drug candidates in order to identify therapies with higher probability of therapeutic success. The company’s technological power lies in its ability to integrate ever-increasing amounts of human, biological, pharmacological and clinical data, stored in GraphDB, with network-based algorithms to discover drug-disease connections and biomarkers that are predictive of efficacy.

  • S&P Global Platts is the leading independent provider of information, benchmark prices and analytics for the energy and commodities markets. For over 100 years, they have brought clarity and transparency to the energy and commodities markets, enabling companies, governments and individuals to act with conviction.

  • Euromoney Institutional Investor PLC is a global business and financial information company, which provides price discovery, essential market intelligence and events. The company manages a portfolio of businesses in markets where the information that organizations need to operate effectively is hard to find.

  • The Basel Institute on Governance asked Ontotext to create the Asset Recovery Intelligence System (ARIS) Platform for BIG’s International Center for Asset Recovery (ICAR). ARIS is designed to help financial investigators, analysts and Financial Intelligence Units in developing countries with the tracking of assets stolen by departing dictators (kleptocrats).

  • Probably the highest profile application of semantic technology to date, BBC’s 2010 World Cup web site is delivered using the OWLIM Enterprise semantic repository. A famous “call to action” by John O’Donovan (Chief Technical Architect, BBC) has spurred a flurry of semantic technology activity in world-known media companies, particularly in the UK and US.

    See more details in the BBC: Dynamic Semantic Publishing success story.

  • Elsevier is one of the world’s five largest Scientific, Technical and Medical (STM) publishers that helps institutions and professionals advance healthcare, open science and improve performance for the benefit of humanity. Elsevier’s ambition is to make analysis easier for everyone working in science and medicine, enabling them to manage their work more efficiently and spend more time making breakthroughs.

  • EBSCO is the leading provider of research databases, e-journals, magazine subscriptions, e-books and discovery service to libraries of all kinds. EBSCO has partnered with libraries to improve research with quality content and technology. EBSCO Information Services is a division of EBSCO Industries, Inc. Through vision, action and innovation, EBSCO invests in the library business to ensure the long-term growth of products, services and technologies for our customers.

  • Fujitsu Technology Solutions is the World’s 7th largest IT services provider and No.1 in Japan. Fujitsu is now using Ontotext GraphDB to deliver projects with the Ministry of the Interior of Spain in the field of National Security. This is an important milestone in the cooperation between Fujitsu and Ontotext, which started back in 2017.

  • The UK Parliament chose Ontotex’ts leading semantic graph database GraphDB as one of the important components for their new data services. GraphDB enables these services to remodel the way they manage their data and engage users in its work.

  • The National Aeronautics and Space Administration (NASA) is a U.S. federal government agency responsible for the civilian space program, as well as aeronautics and space exploration. The agency conducts research, testing and development to advance aeronautics, including electric propulsion and supersonic flight. NASA develops and funds technologies that will enable future space exploration.

  • Johnson Controls is a multinational conglomerate that produces fire, HVAC, and security equipment for buildings. It focuses on efficiency, controls, and automation to make the world more sustainable. Johnson Controls selected Ontotext’s GraphDB to provide semantic data creation and management for their Metasys system – a Top-5 Integrated Building Management System.

  • Siemens AG is the largest industrial manufacturing company in Europe. The company focuses on intelligent infrastructure for buildings and decentralized energy systems, on automation and digitalization in the process and manufacturing industries, and on smart mobility solutions for rail and road transport.

  • Groupe PSA is a global automotive manufacturer and mobility provider. From the production of vehicles to the design of innovative services adapted to customer needs and the invention of solutions that shape future mobility, Groupe PSA is present across the entire automotive value chain.

Museum, Archives & Culture

  • LODAC (Linked Open Data in Academia) was created by Japan’s National Institute of Informatics to aggregate information across multiple Japanese resources as Linked Open Data. Many Japanese museums have digitized their museum collections and this data is scraped by LODAC and mapped to a RDF in CIDOC CRM. Related artists and artworks from different museum collections are associated then accessed through an integrated data views. The result is LODAC-Museum, which includes web presentation, natural language search and a SPARQL endpoint. See more about this solution in LODAC Museum: Linked Open Data for Academic Resources.

  • An Ontotext-led consortium won The British Museum tender for development of the ResearchSpace project funded by the Andrew W. Mellon Foundation. This project aims to support collaborative web-based research, information sharing and web publishing for the cultural heritage scholarly community.

  • Carnegie Hall is a concert venue aiming to present extraordinary music and musicians and to bring the transformative power of music to the widest possible audience. The organization also provides visionary education programs and fosters the future of music through the cultivation of new works, artists, and audiences.

Telecoms & Interactive Television

  • “KT provides semantic VOD search service for IPTV and various smart mobile devices using OWLIM as semantic repository. We found that BigOWLIM is suitable for our service, as it has shown good performance for its price compared with other products in the actual simulation tests. Best of all, OWLIM could be easily tested, installed and used thanks to open library, detailed guidelines, and lots of samples etc. By and large, our experience is that the OWLIM is very powerful and reliable high-performance semantic repository.” – Joo Won Sung, Senior Researcher, Central R&D Laboratory, KT.

    See more details in KT: Interactive TV success story.

  • I.S.D.D. plus is a Slovak software company providing complex services in the field of information technologies, specializing in telecom and banking industries. They chose OWLIM to take advantage specifically of its Geo-Spatial Extensions.

Domain-Specific Semantics & Search

  • DATALAN is a leading Slovak provider of innovative business solutions and IT services. They chose GraphDB as a foundation for their new business venture that will be announced soon.

  • Ontotext is developing a semantic knowledge base of foods, recipes, nutrients, cooking etc. Recipes are crawled from numerous sites; processed to extract knowledge about ingredients, cooking times, nutrition information; and presented through various dynamic and intelligent interfaces that allow sorting and filtering by a number of preferences. See more details in the Edamam Food Knowledge Base success story .

Academic Institutions

  • Ontotext provided product licenses and training services to Nottingham Trent to kick-off their semantic technologies projects.

  • The Pohang University of Science and Technology (POSTECH) is one of Korea’s top universities dedicated to science and engineering. POSTECH uses GraphDB for semantic technology research and industrial projects.

  • National Institute of Informatics is Japan’s general academic research institution seeking to create future value in informatics. NII seeks to advance integrated research and development activities in information-related fields, including networking, software, and content. NII uses OWLIM for research related to semantic technologies.


  • Semantic Web Company (SWC) is the leading provider of graph-based metadata, search, and analytic solutions. The company is the vendor of PoolParty Semantic Suite and is involved in many R&D projects for semantic data and knowledge portals. Headquartered in Vienna, Austria, SWC also supports a myriad international organizations as it improves and takes care of their information management.

  • metaphacts GmbH is a Germany-based company empowering customers to build and manage their own knowledge graphs, and extract the most value out of their data, drive transparency and reach smarter business decisions. metaphacts provides the expertise, products and services to create thematically specialized knowledge graphs in areas such as business, finance, engineering and manufacturing, life sciences, cultural heritage, and more.

    Built entirely on open standards and technologies, the metaphactory platform follows FAIR data principles and supports knowledge graph management, rapid application development and end-user oriented interaction.

  • Synaptica provides software solutions and professional services for managing taxonomies and ontologies that enable enterprises to organize, categorize, and discover knowledge. Synaptica’s Graphite solution simplifies the management of enterprise taxonomies, ontologies and linked data through intuitive graphical user interfaces, business rules and workflows.

  • Enterprise Knowledge (EK) is a professional services firm that integrates knowledge, information, and data management with advanced technologies and approaches to deliver scalable data management capabilities. EK leverages semantic tools and data models, including ontologies, knowledge graphs, and machine learning to bridge organizational silos, connect diverse domains of knowledge and data that accelerate enterprise Artificial Intelligence (AI) capabilities.

  • Infosys Consulting is a global advisor enabling organizations to reimagine their future and create sustainable value leveraging disruptive technologies. Ontotext’s is partnership with Infosys Consulting fosters new opportunities for customers to optimize, simplify and automate their complex business processes by applying artificial intelligence techniques.

  • Datalanguage is a UK-based digital media technical consultancy with expertise in semantic software, linked data and solutions architecture. It develops technical strategies for leading digital media companies as well as designs, builds and implements high-performance semantic publishing systems.

    Datalanguage has considerable experience in the integration and implementation of Ontotext’s GraphDB™ technical solutions in the financial, digital media, and biomedical industries.

  • Institute of Information Technology, Bulgarian Academy of Science, Sofia, Bulgaria
  • University of Sheffield, UK
  • University of Innsbruck, Austria
  • The Open University, Milton Keynes, UK
  • University Roma Tor Vergata, Italy
  • Vrije Universiteit (VU) Amsterdam, The Netherlands
  • EPFL Lausanne, Switzerland
  • British Broadcasting Corporation (BBC), UK
  • DERI Galway, National University of Ireland
  • Froschungszentrum Informatik and Institut AIFB, Karlsruhe, Germany
  • British Telecommunications Plc., UK
  • SAP AG, Germany
  • Atos, Spain
  • Jozef Stefan Institute (JSI), Department of Knowledge Technologies, Slovenia
  • DFKI Language Technology Lab, Saarbrucken, Germany
  • The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. W3C is an international community that develops open standards to ensure the long-term growth of the Web. It is the body that defined and keeps developing standards like HTML, HTTP and XML.

    As a Semantic Web pioneer and the developer of GraphDB (a leading database engine compliant with W3C’s Semantic Web standards), Ontotext has joined W3C to participate in driving the direction of core Web technology and to collaborate with industry and research leaders.

  • The Linked Data Benchmark Council (LDBC) a vendor-independent industry body that governs activities related to benchmarking of graph database engines and graph analytics frameworks. Its activities include developing graph database engine benchmarks, setting up procedures and supervising the process of auditing benchmark results and publishing audited results.

    Ontotext is a founding member of LDBC and has led the development of the LDBC Semantic Publishing Benchmark.

  • The Enterprise Knowledge Graph Foundation was established to define best practices.