Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.

Dieselpoint - Dieselpoint is a leading enterprise search software that combines the power of advanced full search and data navigation capability.

Findify - Personalized eCommerce tool

SearchSpring - SearchSpring is an eCommerce site search tool.

Queryly - Queryly Search Cloud helps readers find more relevant content instantly on the site. 

Hulbee Enterprise Search - Hulbee Enterprise Search is another powerful site search solution that intelligently retrieves information and documents regardless of their source or location.