Search Engine Software

There is a good page listing the various search vendors on wikipedia at

• http://en.wikipedia.org/wiki/List_of_enterprise_search_vendors
   

Note the commercial support vendors -- they all seem to be Apache / Solr based -- is this the best?

• 30 Digits - Implementation, consulting, support, and value-add components for Lucene and Solr
• Apache Software Foundation - The foundation is the entity behind the Lucene family of products
• Lucid Imagination - Commercial support, training and services for Lucene and Solr
• MobilVox - Support, development, training, and products for Lucene
• Sematext - Consulting, development and products for Lucene, Solr, Nutch, and Hadoop

These links are from http://en.wikipedia.org/wiki/Full_text_search

Free and open source software

• DataparkSearch
• Ferret
• Ht-//Dig
• Lemur/Indri
• Lucene
• mnoGoSearch
• Sphinx
• Swish-e
• Xapian

Proprietary software

• Attivio
• Autonomy Corporation
• Brainware
• BRS/Search
• Concept Searching Limited
• Dieselpoint
• dtSearch
• Endeca
• Exalead
• Fast Search & Transfer
• Inktomi
• Vivísimo