PayJunction - PayJunction powers mid- to large-scale businesses with smart payment processing, electronic signature capturing, and comprehensive multi-user multi-location reporting.

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

Merchant Warrior - Merchant Warrior is an end-to-end payments gateway that provides merchant services via an online payment gateway, ISO management, and payment solution providing platform.

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

Vapulus - Vapulus is an ultimate Payment solution for businesses that meet their specific needs.

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.