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.

Sailthru - Sailthru Smart DataTM technology enables businesses to optimize, automate, and deliver personalized experiences to each individual at scale.

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

Qubit - Qubit is a web personalization platform founded by former Google workers, using innovative technology to collect, store, process, and output data to optimize consumers' experiences on the web. Read more about Qubit.

Klevu - Klevu offers instant site search solution for eCommerce stores.

Dynamic Yield - Personalization & customer experience management