ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
PayAnywhere - PayAnywhere is a smart payment processing platform that comes with the modular methodology to streamline your business process with instant payments.
Xapian - Xapian is an open source probabilistic information retrieval library, released under the GNU...
STAX - AWS spending management & visualization
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.
Vapulus - Vapulus is an ultimate Payment solution for businesses that meet their specific needs.