This paper discusses Ontotext GraphDB (previously known as OWLIM), a native RDF database with dynamic indexing that integrates with various search technologies, as well as text mining. Unlike most other vendors in this space, Ontotext has developed specific solutions for various industry sectors, including publishing and media, recruitment, life sciences and healthcare, museums and archives. There is a developer edition (GraphDB Free Edition) that is free but limited by the number of concurrent users. Otherwise, the options are the Standard Edition, the Enterprise Edition or GraphDB Cloud, which is a database as a service offering running on AWS.
This paper has been superseded by Ontotext GraphDB and the Ontotext Platform (September, 2020)