Optimizely - A/B testing you'll actually use.
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.
Evergage - Evergage's real time web personalization software can help you boost engagement, increase revenue and drive more conversions. Web personalization software that's easy to use.
Hawk Search - Site-search engine for eCommerce platforms.
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters