SMW+ is an open source software bundle composed of the wiki application MediaWiki along with a number of its extensions, that was developed by the German software company Ontoprise GmbH from 2007 to 2012. In 2012, Ontoprise GmbH filed for bankruptcy and went out of business. DIQA-Projektmanagement GmbH, a start-up founded by former Ontoprise employees, now offers support for the software in SMW+, though under the name "DataWiki".