Group Members

Membership is open to organizations and individuals that are using Wikibase for relevant work and are willing to provide resources for towards the groups mission. If you’re interested in joining, please get in touch via email to

  1. Organizations
    1. Biodiversity Heritage Library
    2. Digital Scriptorium
    3. Dublin Core Metadata Initiative
    5. FIZ Karlsruhe
    6. Gene Wiki
    7. OpenRefine
    8. Rhizome
    9. Semantic Lab at Pratt Institute
    10. TIB Hannover
    11. Trier Center for Digital Humanities
    12. UB Mannheim
    13. Wikimedia Deutschland
  2. Consultants
    1. Digitaal Werktuig
    2. IP Squared
    3. Micelio
    4. Professional Wiki
    5. The QA Company
  3. Individual members

All lists in alphabetical order


Biodiversity Heritage Library logo

Biodiversity Heritage Library

Biodiversity Heritage Library is the world’s largest open access digital library for biodiversity literature and archives. Operating as an international library consortium, BHL provides free access to millions of pages, representing over 500 years of scientific research about Life on Earth, alongside services like data exports, APIs, and taxonomic intelligence tools to facilitate discovery and reuse of data and collections.

Digital Scriptorium logo

Digital Scriptorium

Digital Scriptorium is a growing consortium of American libraries and museums committed to free online access to their collections of pre-modern manuscripts.

Dublin Core Metadata Initiative logo

Dublin Core Metadata Initiative

The Dublin Core™ Metadata Initiative, or “DCMI,” is an organization supporting innovation in metadata design and best practices across the metadata ecology. logo is a linked database that allows to explore or reconstruct the lives of individuals who were enslaved, owned slaves, or participated in the historical trade. It is hosted at the Matrix Center for Digital Humanities & Social Sciences at Michigan State University.

FIZ Karlsruhe logo

FIZ Karlsruhe

FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is one of the large infrastructure institutions in Germany and member of the Leibniz Association.

Gene Wiki logo

Gene Wiki

Gene Wiki is a project that aims at making wikidata a central hub of linked data in the life sciences. For those use cases where the underlying data is not eligble for inclusion wikibase provides a nice extension to Wikidata. The WikidataIntegrator is developed and maintained by this project.

OpenRefine logo


OpenRefine is a powerful open-source tool for cleaning, transforming, and extending data, including Wikibase instances.

Rhizome logo


Rhizome is a nonprofit organization that champions born-digital art and culture through commissions, exhibitions, scholarship, and digital preservation. Since 2003, Rhizome has been an affiliate in residence at the New Museum in New York. Rhizome hosts the ArtBase and acts as the fiscal sponsor for this group.

Semantic Lab logo

Semantic Lab at Pratt Institute

The Semantic Lab at Pratt serves as an incubator for the development of novel methods and tools for the application of semantic technologies to libraries, archives and museums.

TIB Hannover logo

TIB Hannover

TIB is the University Library at Leibniz University, Hannover, and serves as the German National Library of Science and Technology. TIB is actively engaged in promoting Open Access and thus supports unrestricted, free access to scientific information. In cooperation with the scientific community, TIB is testing new methods and tools for supporting the work of researchers.

Trier Center for Digital Humanities logo

Trier Center for Digital Humanities

The Trier Center for Digital Humanities (TCDH), founded in 1998 and located at the University of Trier, performs research in the areas of Digital Editing, Digital Lexicography, Research Software Engineering, and Computational Literary and Cultural Studies..

UB Mannheim logo

UB Mannheim

UB Mannheim (also known as Mannheim University Library) provides the information and research infrastructure for teaching, learning and research activities at the University of Mannheim. UB Mannheim creates a Wikibase knowledge graph with German companies in the project BERD@BW.

Wikimedia Deutschland logo

Wikimedia Deutschland

Wikimedia Deutschland was founded in 2004 as the German chapter of the Wikimedia movement and is leading development on Wikibase and Wikidata.


Digitaal Werktuig

Digitaal Werktuig logo

Digitaal Werktuig is a freelance enterprise founded by Maarten Brinkerink (Est. October 2020). Maarten Brinkerink is an expert in digital culture and information processing. He is an experienced project manager, researcher and consultant, working in the cultural heritage sector for over 13 years.

IP Squared

IP Squared is the consultancy firm of Maarten Zeinstra, IP Lawyer and Information Professional. Maarten does project around information and knowledge management in the public sector.

Micelio logo, a consultancy and project participant in the field of open data, semantic web, FAIR, wikidata and Wikibase.

Professional Wiki

Wikibase Consultancy logo

Professional Wiki provides Wikibase software development, Wikibase cloud hosting, MediaWiki cloud hosting, Tailored Wikibase hosting, Wikibase installation, and other Wikibase services.

Professional Wiki has created 8+ Wikibase extensions and is run by one of the creators of MediaWiki and Wikibase. Its projects include creation of Wikibase EDTF and Automated Values for the Luxembourg Ministry of Culture. Learn more.

The Wikibase Consultancy is Professional Wiki’s Wikibase focused brand.

The QA Company logo

The QA Company

The QA Company is a company specialized in setup, mantainence and data ingestion of Wikibase instances. It currently mantaines the Wikibase instance of the European Commission known as the EU Knowledge Graph, one of the biggest Wikibase deployments after Wikidata. It maintains as well Wikibase instances for other European and American customers. The QA Company also offers a Question Answering solution over Wikibase instances using it’s QAnswer technology.

Individual members

  • Adam Shorland
  • Alexander Derveaux, FOMU - Fotomuseum Antwerpen
  • Daniel Mietchen, Scholia
  • David Fichtmueller, Botanic Garden and Botanical Museum (BGBM) Berlin
  • David Lindemann, UPV/EHU University of the Basque Country
  • Frieder Leipold, KU Leuven
  • Jackie Shieh, Smithsonian Libraries & Archives
  • James Baker, Digital Humanities Hub, University of Southampton
  • Laurence ‘GreenReaper’ Parry, Wikibase Community User Group
  • Max Kristen, LMU Munich
  • Okko Vainonen, National Library of Finland
  • Olaf Janssen, National Library of the Netherlands
  • Ross Spencer, Ravensburger AG
  • Ruth von dem Bussche
  • Thomas Jenne, FOMU - Fotomuseum Antwerpen
  • Yuhsien Chen

Page last modified: 2022-05-06.