ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.

Silent Auction Pro - Simple * Affordable * Powerful --- Silent Auction Pro is a multi-user, internet-based fundraising software system providing complete donor and auction management solution for charitable organizations.

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.

Charity Auctions Today - Charity Auctions Today provides online and mobile auctions from home or work to raise for schools and Nonprofits.

Xapian - Xapian is an open source probabilistic information retrieval library, released under the GNU...

Handbid - Generate more revenue and delight your bidders with the Handbid mobile bidding silent auction software with apps for iOS, Android, and the web.