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.
Nosto - Personalized shopping experiences for e-commerce businesses
Hawk Search - Site-search engine for eCommerce platforms.
Tagalys - Data driven online Merchandising for eCommerce product listing pages.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Certona - Certona is a multi-channel personalization platform for brands and retailers.