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.
OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
Dynamic Yield - Personalization & customer experience management
POPUPSMART - A no-code tool to increase e-commerce sales, build email lists and engage with your visitors in just 5-minutes.
Optimizely - A/B testing you'll actually use.
OptiMonk - OptiMonk is the most powerful Onsite Retargeting platform, that helps you increase the conversion rate of your site, and get more leads by recovering lost visitors.