List of enterprise search vendors

This is a list of enterprise search vendors, restricted to those that have a dedicated entry.
Vendors of proprietary enterprise search software
Defunct vendors of proprietary enterprise search software
* AskMeNow
* Google Search Appliance
* Omniture (acquired by Adobe Systems)
* Q-go
Free and open source enterprise search software
* Apache Solr Last update December 2021
* March 2022
* Sphinx January 2020
* Terrier January 2020
* Xapian June 2020
Defunct free and open source software
* ApexKB November 2010
* Gigablast Last update unknown
* ht-//Dig June 2004
* Lemur June 2010
* mnoGoSearch December 2015
* OpenSearchServer Last update unknown
* Searchdaimon Last update unknown
* Zettair October 2009
 
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