Dynamic Yield - Personalization & customer experience management
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.
Lytics - Lytics is a company that utilizes machine learning to collect and analyze data to help you find new approaches to marketing. They offer unique and customized experiences to each customer. Read more about Lytics.
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
BloomReach - Get people to your products faster. Personalize your customer experience. Increase your revenue.
Klevu - Klevu offers instant site search solution for eCommerce stores.