Apache Solr - Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...
Hulbee Enterprise Search - Hulbee Enterprise Search is another powerful site search solution that intelligently retrieves information and documents regardless of their source or location.
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
Dieselpoint - Dieselpoint is a leading enterprise search software that combines the power of advanced full search and data navigation capability.
Coveo - Enterprise search technology for better customer support, customer self-service, and knowledge management in the digital workplace.
Varonis DatAnswers - Varonis DatAnswers is a leading enterprise search and discovery platform that deliver secure and relevant searches for authorized NAS, Windows files servers and share point users.