Sphider

Sphider is a lightweight web spider and search engine written in PHP, using MySQL as its back end database.

AppWise

AppWise is an intelligent workspace that unifies enterprise apps into a single, searchable view.

Help you organize/sort your online content by tagging your files in cloud drive and mailbox (Gmail).

Outlook and desktop search to help you search and find information from your files, emails and…

Fourstarzz Media offers Influencer marketing solution that grants UNLIMITED searches, profile views, lists and campaign tracking.

PIPL professional search is used to find the person behind an email,phone or social profile and covers over 3 Billion people worldwide.

Allow your AngularJS, BackboneJS, or EmberJS apps to be crawled perfectly by search engines. View on Github.

Quixey invented functional search specifically for apps.

Sajari is a machine learning powered search and matching service.

Relational Databases

Zettata search is an enterprise-grade search software that significantly enhances the effectiveness of e-commerce sites.