Optimizely - A/B testing you'll actually use.
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates
BEYABLE - Real-time personalization solutions for e-commerce & lead gen websites
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
Enhencer - Enhencer is an auto-machine learning SAAS platform that helps e-commerce sites to predict customer behaviours and take actions accordingly
Nylas Mail - The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.