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.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Sumo - Free tools to grow your email list.
DeskAlerts - Send alerts to any corporate device: PCs, phones, tablets, etc.
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.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.