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.

Sumo - Free tools to grow your email list.

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

Swiftype Site Search - Swiftype Site Search helps to sell more, get the right answer to more people on the platform and surface relevant content for readers and followers.

ChannelAdvisor - As your partner in e-commerce success, we’re here to help you acquire more customers and land more sales than ever before. We keep our customers growing — and we have the stats to prove it.

Nosto - Personalized shopping experiences for e-commerce businesses